Engineering
Discipline engineering — civil, structural, mechanical, electrical, chemical, aerospace, materials, marine and biomedical.
Discipline engineering, one hub per profession rather than fourteen stubs. Beam moments and deflection, column buckling, foundation bearing, hydraulics and open-channel flow, pump and fan duty, motor and transformer sizing, heat transfer and exchanger area, and gear and bearing selection.
Traffic and rail engineering — capacity, signal timing, superelevation, track geometry and rolling resistance — sit with civil rather than with transport operations, because the calculation belongs to the designer.
Materials science, ocean engineering and biomedical engineering complete the hub with stress-strain, fatigue, corrosion, mooring and buoyancy, and device and prosthetics sizing.
172 calculators in 5 sections.
Start with these
The questions people most often bring to this page, and the calculator that answers each one.
- Wood Beam Design Calculator — Timber beam sizing checked for bending, shear and deflection.
- Parking Demand Calculator — Parking spaces required by land use, with shared-parking reduction.
- VSD Compressor Savings Calculator — kWh and dollars saved by a variable-speed air compressor.
Matches are ranked by relevance. Use CtrlK anytime to search the full site.
Civil, Structural, Traffic & Rail
Beams and columns, foundations, road capacity, signal timing and track geometry.
Beam Load Calculator
Calculate maximum shear, bending moment, and deflection for simply supported and cantilever beams under uniform or point loads.
Concrete Mix Design Calculator
Design a concrete mix by specifying target strength, water-cement ratio, and cement content. Get weights for cement, water, fine and coarse aggregates per cubic yard.
Rebar Spacing Calculator
Calculate rebar spacing, bars per foot, and steel ratio for concrete slabs. Checks ACI code compliance for maximum spacing.
Soil Bearing Capacity Calculator
Calculate ultimate and allowable soil bearing capacity using Terzaghi's equation. Inputs include soil cohesion, friction angle, and foundation geometry.
Retaining Wall Design Calculator
Calculate active earth pressure, overturning moment, and sliding forces on a retaining wall using Rankine's theory.
Storm Drain Sizing Calculator
Size storm drain pipes using the Rational Method for flow estimation and Manning's equation for pipe capacity. Selects nearest standard pipe size.
Traffic Signal Timing Calculator
Calculate signal green time, effective green, volume-to-capacity ratio, and average delay per vehicle for signalized intersections.
Pavement Thickness Calculator
Design flexible pavement thickness using a simplified AASHTO 1993 method. Calculates required structural number and layer thicknesses for asphalt, base, and subbase.
Culvert Sizing Calculator
Size circular culverts by checking inlet and outlet control headwater depths. Determines if a selected pipe size is adequate for the design flow.
Slope Stability Calculator
Analyze slope stability using the infinite slope method. Calculates factor of safety considering cohesion, friction, pore pressure, and slip depth.
Bridge Load Rating Calculator
Calculate bridge load rating factor using LRFR methodology. Determines if a bridge passes HL-93 design loading and whether posting is required.
Catch Basin Spacing Calculator
Calculate maximum catch basin (inlet) spacing based on gutter flow capacity, cross slope, and design rainfall intensity.
Superelevation Calculator
Calculate highway curve superelevation rate, bank angle, minimum curve radius, and maximum safe speed using AASHTO design formulas.
Sight Distance Calculator
Calculate stopping sight distance (SSD), decision sight distance, and passing sight distance for highway design using AASHTO formulas.
Earthwork Volume Calculator
Calculate earthwork cut or fill volume using the Average End Area method. Estimates truck loads and cost for excavation or fill operations.
Compaction Test Calculator
Calculate wet density, dry density, void ratio, and degree of saturation from Proctor compaction test data.
Foundation Settlement Calculator
Estimate immediate elastic settlement and consolidation settlement of shallow foundations. Includes time estimate for 90% consolidation.
Pile Capacity Calculator
Estimate single pile bearing capacity including point resistance and skin friction. Uses alpha and beta methods with a factor of safety of 2.5.
Water Demand Forecasting Calculator
Forecast future water demand based on population growth, per capita usage, and peak factors. Estimates required storage capacity.
Wastewater Treatment Sizing Calculator
Size key components of an activated sludge wastewater treatment plant: aeration, clarifiers, aeration power, and sludge production.
Pressure at Depth
Hydrostatic pressure P = ρgh.
Steel Beam Selection Calculator
Determine required section modulus, moment of inertia, and approximate beam weight for steel beam design with uniform and point loads.
Column Buckling Calculator
Calculate Euler critical buckling load, critical stress, and slenderness ratio for columns with various end conditions.
Concrete Column Design Calculator
Design reinforced concrete columns per ACI 318: calculate gross area, steel area, steel ratio, and axial load capacity.
Wood Beam Design Calculator
Check bending adequacy of wood beams per NDS ASD: compare actual bending stress against adjusted allowable stress.
Connection Design Calculator
Calculate bolted steel connection capacity: shear, bearing, and overall connection strength for A325 and A490 bolts.
Moment Frame Analysis Calculator
Analyze lateral forces on a moment frame using the portal method: column shear, moments, base shear, and drift.
Wind Load Calculator
Calculate wind pressures and forces on buildings per ASCE 7: velocity pressure, windward/leeward pressures, and base shear.
Seismic Base Shear Calculator
Calculate seismic base shear using the ASCE 7 equivalent lateral force procedure: V = Cs × W.
Snow Load Calculator
Calculate flat roof snow load, sloped roof snow load, and drift loads per ASCE 7 using pf = 0.7CeCtIpg.
Deflection Checker Calculator
Check beam deflection against code limits (L/240, L/360, L/480, L/600) using δ = 5wL⁴/(384EI).
Composite Beam Design Calculator
Design steel-concrete composite beams: calculate composite capacity, PNA location, required shear studs, and strength gain.
Prestressed Concrete Calculator
Estimate prestress losses (elastic shortening, creep, shrinkage, relaxation) and effective prestress for pretensioned concrete members.
Masonry Wall Design Calculator
Design reinforced masonry walls: check slenderness, compressive capacity, moment capacity, and load adequacy.
Plate Girder Design Calculator
Design steel plate girders: check moment capacity, shear capacity, web and flange slenderness, and compactness.
Timber Connection Calculator
Design bolted timber connections per NDS: calculate reference design values, group action factor, and connection capacity.
Anchor Embedment
Illustrative tension embedment — verify with ICC-ES data.
Bike Lane Design Calculator
Determine recommended bike lane type, width, and buffer from traffic speed, volume, and roadway conditions using NACTO and AASHTO guidelines.
Level of Service (LOS) Calculator
Determine roadway Level of Service grade (A through F) from traffic volume, lane count, free-flow speed, and vehicle mix using HCM methodology.
Parking Demand Calculator
Estimate required parking spaces from land use type and building size using ITE Parking Generation rates, with adjustments for shared parking and transit.
Pedestrian Signal Timing Calculator
Calculate walk and clearance intervals for pedestrian signal phases from crossing distance and walk speed per MUTCD and ADA standards.
Roundabout Capacity Calculator
Calculate entry capacity, volume-to-capacity ratio, delay, and level of service for single and multi-lane roundabouts using HCM methodology.
Sight Triangle Calculator
Calculate clear sight triangle dimensions for intersection safety based on AASHTO guidelines, design speed, and intersection control type.
Speed Hump Design Calculator
Design speed humps, speed tables, or speed cushions with recommended dimensions and spacing for target speed reduction on residential streets.
Traffic Impact Fee Calculator
Estimate development traffic impact fees from ITE trip generation rates, pass-by reductions, and fee schedules.
Traffic Signal Warrant Calculator
Evaluate MUTCD signal warrant criteria from traffic volume, accident history, pedestrian activity, and school zone presence to determine if a traffic signal is justified.
Turn Lane Length Calculator
Calculate deceleration, storage, and taper lengths for left and right turn lanes based on AASHTO design standards.
Track Superelevation Calculator
Calculate rail cant (superelevation) from curve radius and design speed using the AREMA formula e = 0.0007 × D × V².
Rail Stress Calculator
Calculate thermal stress in continuous welded rail (CWR) from temperature change using σ = E × α × ΔT. Assess buckling and break risk.
Turnout Design Calculator
Calculate railroad switch/turnout geometry from frog number — frog angle, lead length, curve radius, and maximum diverging speed.
Grade Crossing Warning Calculator
Calculate highway-rail grade crossing warning time, approach circuit distance, and clearance time per MUTCD and FRA requirements.
Rail Wear Calculator
Estimate rail wear rate and service life from traffic tonnage (MGT), curve degree, rail weight, lubrication, and rail grade. Includes grinding intervals and cost estimates.
Catenary Design Calculator
Design overhead catenary system parameters: messenger wire sag, contact wire height, wind deflection, dropper count, and electrical clearances.
Train Braking Distance Calculator
Calculate emergency and service braking distances from speed, grade, and brake coefficient using d = V²/(2g(μ±G)).
Platform Length Calculator
Calculate station platform length from train consist, car count, locomotive configuration, and stopping tolerance. Includes ADA zone and capacity estimates.
Track Capacity Calculator
Estimate daily and annual train capacity from signal system type, number of tracks, segment length, and operating parameters.
Railroad Bridge Load Rating Calculator
Calculate Cooper E load rating for railroad bridges from member capacity, dead load, and live load effects per AREMA Chapter 15.
Mechanical & Fluid Power
Gears, shafts and bearings, hydraulic and pneumatic circuits, compressed air.
Shaft Design Calculator
Design a shaft for combined bending and torsional loads using the von Mises failure criterion. Calculates minimum diameter and stresses.
Gear Ratio Calculator
Calculate gear ratio, output speed, output torque, and mechanical advantage for a simple gear pair.
Belt Drive Design Calculator
Design V-belt or flat belt drives. Calculate belt length, speed ratio, belt speed, and tight/slack side tensions for power transmission.
Spring Design Calculator
Design helical compression springs. Calculate spring rate, deflection, shear stress with Wahl correction, and free/solid lengths.
Bearing Life Calculator
Calculate L10 bearing life in revolutions and hours using the ISO 281 basic rating life equation for ball and roller bearings.
Thermal Expansion Calculator
Calculate linear thermal expansion, thermal strain, and restrained thermal stress for engineering materials subjected to temperature changes.
Heat Exchanger Sizing Calculator
Size a counterflow heat exchanger using the LMTD method. Calculate heat duty, log mean temperature difference, and required surface area.
Pump Sizing Calculator
Size a centrifugal pump by calculating hydraulic horsepower, brake horsepower, motor size, NPSH required, and annual energy cost.
Fan Selection Calculator
Select an HVAC or industrial fan by calculating brake horsepower, motor size, estimated tip speed, noise level, and annual energy consumption.
Pressure Vessel Design Calculator
Design cylindrical pressure vessels per ASME Section VIII. Calculate minimum wall thickness, hoop stress, and longitudinal stress.
Fatigue Life Calculator
Estimate fatigue life in cycles using the S-N approach with modified endurance limit. Accounts for surface finish and size effects.
Weld Strength Calculator
Calculate weld strength for fillet and groove welds per AISC. Determine effective area, allowable load, and shear capacity with directional effects.
Bolt Torque Calculator
Calculate required bolt tightening torque to achieve a desired clamping force using the T = K×D×F short-form torque equation.
Flywheel Energy Calculator
Calculate kinetic energy stored in a flywheel. Determine moment of inertia, angular velocity, and energy in ft·lb, Joules, and Wh.
Vibration Analysis Calculator
Analyze single-degree-of-freedom vibration systems. Calculate natural frequency, damping ratio, transmissibility, and amplitude magnification.
Hydraulic Cylinder Force Calculator
Calculate extend and retract forces for hydraulic cylinders based on bore diameter, rod diameter, and system pressure.
Pneumatic System Calculator
Size a pneumatic compressed air system. Calculate total CFM demand, compressor horsepower, and tank recharge time for multiple air tools.
Power Screw Calculator
Analyze power screws (lead screws, jack screws). Calculate raising and lowering torque, efficiency, and self-locking condition.
Keyway Design Calculator
Design shaft keyways by calculating shear and compressive stresses in the key. Determine minimum key length and safety factor.
Coupling Selection Calculator
Select a shaft coupling by calculating design torque with service factor, required rating, and recommended coupling type based on misalignment.
Hydraulic Power Unit Calculator
Size a complete hydraulic power unit including pump, electric motor, and reservoir from circuit pressure and flow demands.
Hydraulic Hose Selection Calculator
Select the correct hydraulic hose dash size from flow rate, pressure, and velocity limits. Calculates pressure drop and fitting losses.
Hydraulic Accumulator Calculator
Size a hydraulic bladder or piston accumulator using gas law calculations for isothermal or adiabatic processes.
Pneumatic Cylinder Force Calculator
Calculate push and pull force, air consumption, and buckling safety for pneumatic cylinders from bore, rod, stroke, and pressure.
Air Compressor Sizing Calculator
Size an air compressor by calculating required CFM, HP, and tank capacity from tool demands, duty cycle, and diversity factor.
Hydraulic Motor Selection Calculator
Calculate hydraulic motor displacement, flow, torque, and power from speed and load requirements.
Pneumatic Valve Sizing Calculator
Calculate required valve Cv/Kv flow coefficient for pneumatic systems with sub-critical and critical (choked) flow analysis.
Hydraulic Filtration Calculator
Calculate filter Beta ratio efficiency, ISO cleanliness targets, and filter element life for hydraulic systems.
Hydraulic Cooling Calculator
Calculate heat generation and size a heat exchanger for a hydraulic system based on pressure, flow, and efficiency.
Pneumatic Tubing Calculator
Size pneumatic tubing by calculating velocity, pressure drop, burst pressure (Barlow's formula), and recommended OD for air systems.
Compressor Sizing Calculator
CFM and HP from tool demand and diversity factor.
Air Receiver Tank Sizing Calculator
Tank volume from compressor output and demand fluctuation.
Compressed Air Leak Cost Calculator
Annual cost of compressed air leaks from audit data.
Dryer Selection Calculator
Refrigerated or desiccant dryer from dewpoint requirement.
Pipe Sizing (Compressed Air) Calculator
Pipe diameter from CFM and acceptable pressure drop.
Air Consumption Calculator
CFM per tool from duty cycle and rated consumption.
Energy Cost (Compressed Air) Calculator
Cost per 1000 CF from compressor efficiency and electric rate.
Pressure Drop Calculator
System pressure drop from pipe, fittings, and filters.
VSD Compressor Savings Calculator
Energy savings from variable speed drive vs load/unload.
Compressed Air Quality Calculator
ISO 8573 air quality class from application requirements.
Electrical & Aerospace
Circuit and machine sizing, power factor, lift and drag, propulsion and orbits.
Transformer Sizing Calculator
Size single-phase and three-phase transformers: calculate required KVA, full load current, and select next standard size.
Motor Starting Current Calculator
Calculate motor full load amps, starting inrush current, voltage drop during starting, and starting KVA demand.
Power Factor Correction Calculator
Calculate the capacitor bank size (KVAR) needed to improve power factor and estimate energy cost savings.
Short Circuit Current Calculator
Calculate available fault current, X/R ratio, and interrupting duty at a point downstream of a transformer.
Cable Ampacity Calculator
Determine cable ampacity with NEC derating factors for temperature, conduit fill, and continuous loads.
Harmonic Distortion Calculator
Calculate Total Harmonic Distortion (THD) and check compliance with IEEE 519 harmonic limits.
Grounding System Calculator
Design grounding electrode systems: calculate single rod resistance, parallel rod resistance, touch and step voltages.
Lighting Design Calculator
Calculate the number of light fixtures needed using the lumen method: N = (E × A) / (F × UF × MF).
Emergency Generator Calculator
Size emergency generators with altitude and temperature derating, fuel consumption, and runtime estimates.
Solar Panel Array Calculator
Size a solar panel array: calculate panel count, array capacity, daily/annual production, and required roof area.
Battery Bank Sizing Calculator
Size a battery bank: calculate series/parallel configuration, total batteries, and usable capacity for off-grid and backup systems.
Arc Flash Calculator
Estimate arc flash incident energy, flash boundary, PPE category, and required cal rating per IEEE 1584.
Conduit Fill Calculator
Check NEC conduit fill compliance: calculate fill percentage, compare to code limits, and find maximum conductor count.
Voltage Regulation Calculator
Calculate voltage drop, drop percentage, and receiving-end voltage for power cables with resistance and reactance.
Demand Load Calculator
Calculate residential service demand load per NEC Article 220: general lighting, appliances, HVAC, and service size.
Rocket Propulsion Calculator
Calculate rocket delta-V, exhaust velocity, and burn time using the Tsiolkovsky rocket equation.
Orbital Transfer Calculator
Calculate Hohmann transfer orbit parameters including delta-V requirements and transfer time between two circular orbits.
Reentry Heating Calculator
Estimate stagnation-point heating rate, temperature, and total heat load during atmospheric reentry using the Sutton-Graves correlation.
Satellite Link Budget Calculator
Calculate EIRP, free space loss, received power, carrier-to-noise ratio, and link margin for satellite communication links.
Launch Window Calculator
Calculate synodic period, optimal wait time, and transfer time for interplanetary or orbital launch windows.
Spacecraft Mass Budget Calculator
Estimate spacecraft dry mass, propellant mass, and payload fraction from subsystem mass percentages.
Atmospheric Drag Calculator
Calculate atmospheric drag force, orbital decay rate, and estimated remaining orbital lifetime for satellites.
Space Solar Array Sizing Calculator
Size solar arrays for spacecraft by calculating required area, begin/end-of-life power, and mass estimates.
Reaction Control Thruster Calculator
Size reaction control system thrusters based on spacecraft inertia, slew requirements, and propellant budget.
Structural Load Factor Calculator
Calculate structural load factors, ultimate loads, bank angle loads, and margin of safety for aerospace vehicle design.
Chemical & Process
Mass and energy balances, reactor sizing, distillation and heat exchange.
Distillation Column Calculator
Estimate minimum and actual theoretical stages, minimum reflux ratio, and feed stage location using the McCabe-Thiele simplified approach.
Reactor Sizing Calculator
Size CSTR and PFR reactors for first-order reactions using the design equation V = FA0·X/(−rA).
Heat of Reaction Calculator
Calculate the standard enthalpy of reaction (ΔH) from formation enthalpies of reactants and products using Hess's Law.
Mass Balance Calculator
Perform overall and component mass balances for a single-unit process with feed, product, waste, and recycle streams.
Energy Balance Calculator
Calculate sensible heat, latent heat, total heat duty, and power requirements for process heating and cooling operations.
Pipe Pressure Drop Calculator
Calculate pressure drop, head loss, and Reynolds number for pipe flow using the Darcy-Weisbach equation.
Flash Drum Calculator
Calculate vapor-liquid equilibrium in a flash drum using the Rachford-Rice equation for a binary system.
Cooling Tower Calculator
Calculate cooling range, approach, Merkel number, evaporation rate, and makeup water requirements for cooling tower design.
Absorption Column Calculator
Design a packed absorption column: calculate diameter, packing height, number of transfer units (NTU), and pressure drop.
Filtration Rate Calculator
Calculate filtration time, average flow rate, and cake thickness for constant-pressure filtration operations.
Evaporator Design Calculator
Design a single-effect evaporator: calculate evaporation rate, steam requirements, heat duty, and required heat transfer area.
Dryer Design Calculator
Calculate water removal, drying time, energy requirements, and exit humidity for batch and continuous dryer operations.
Crystallization Yield Calculator
Calculate crystal yield, mother liquor mass, and percent recovery for cooling and evaporative crystallization operations.
Process Scale-Up Calculator
Scale reactor agitation from lab to production using constant tip speed, constant P/V, or constant Reynolds number criteria.
Chemical Storage Compatibility Calculator
Assess chemical storage compatibility and segregation requirements based on hazard ratings for acids, bases, oxidizers, flammables, and toxics.
Heat Exchanger Duty Calculator
Calculate heat exchanger duty using the Log Mean Temperature Difference (LMTD) method: Q = U × A × ΔTlm for counter-current or parallel flow.
Control Valve Cv Sizing Calculator
Size control valves per ISA/IEC 60534 for liquid or gas service. Calculate required Cv, check for choked flow, and select nearest standard valve size.
Relief Valve Sizing Calculator
Size pressure relief valves per API 520/526 for gas/vapor service. Calculates required orifice area and selects the standard API 526 orifice designation.
Process Control Loop Tuning Calculator
Calculate PID controller tuning parameters using Ziegler-Nichols, Cohen-Coon, or IMC (Lambda) methods from process step-response data (gain, dead time, time constant).
Energy Balance Calculator
Calculate steady-state energy balance for a process stream. Includes sensible heat (Q = mCpΔT), latent heat of phase change, and reaction heat contributions.
Pressure Vessel Sizing Calculator
Size pressure vessels per ASME Section VIII. Calculate shell and head wall thickness (UG-27), vessel volume, and weight estimate for hemispherical, ellipsoidal, or torispherical heads.
Mass Balance Calculator
Solve steady-state mass and component balances around a separation unit. Calculate product/waste flow rates, component recovery, split ratio, and yield.
Pipe Pressure Drop Calculator
Calculate pipe friction pressure drop using the Darcy-Weisbach equation with Swamee-Jain friction factor. Handles laminar, transition, and turbulent flow regimes.
Distillation Reflux Ratio Calculator
Shortcut distillation design using Fenske-Underwood-Gilliland method. Calculate minimum stages, minimum reflux ratio, actual trays, and column material balance.
Pump NPSH Calculator
Calculate Net Positive Suction Head available (NPSHa) and pump shaft power. Verify cavitation margin against required NPSH from the pump curve.
Materials, Marine & Biomedical
Stress-strain and fatigue, corrosion, buoyancy and mooring, device sizing.
Stress-Strain Analyzer Calculator
Calculate engineering stress, strain, Young's modulus, ultimate tensile strength, and fracture stress from tensile test data.
Hardness Conversion Calculator
Convert between Rockwell C, Brinell, Vickers, and Knoop hardness scales with estimated tensile strength.
Alloy Composition Calculator
Convert between weight percent and atomic percent for a three-element alloy system.
Creep Life Calculator
Predict creep rupture life using the Larson-Miller parameter method for high-temperature materials.
Corrosion Rate Calculator
Calculate corrosion rate in mils per year (MPY) and mm/year from coupon weight loss test data, with life estimation.
Wave Loading Calculator
Calculate wave forces on cylindrical structures using the Morison equation with linear (Airy) wave theory, including drag and inertia components.
Marine Pile Design Calculator
Compute ultimate and allowable bearing capacity for marine foundations on the seabed using the general bearing capacity equation with submerged soil conditions.
Offshore Platform Design Calculator
Estimate foundation sizing, bearing capacity, and stability ratios for gravity-based offshore platforms under combined dead, live, and environmental loads.
Submarine Cable Design Calculator
Model the catenary profile of submarine cables and umbilicals — compute layback distance, cable length, top tension, and departure angle for installation engineering.
Breakwater Design Calculator
Size rubble-mound breakwater armor units using the Hudson formula. Computes armor weight, layer thickness, unit count, and stability number.
Coastal Erosion Calculator
Design cathodic protection systems for submerged steel structures using sacrificial anodes. Calculate current demand, anode mass, count, and resistance per DNV-RP-B401.
Marine Outfall Design Calculator
Estimate the structural and hydrodynamic impact of marine growth (biofouling) on offshore members — effective diameter, added weight, and drag/inertia force increases.
Floating Dock Design Calculator
Calculate buoyancy, draft, freeboard, reserve buoyancy, and metacentric height (GM) for rectangular floating docks, pontoons, and barges.
Port Sedimentation Calculator
Calculate tidal current velocities and volumetric flow through channels and inlets. Determine peak and mean velocities, Froude number, and tidal power density.
Offshore Wind Foundation Calculator
Estimate wave energy resource and power output of a wave energy converter. Calculate wave power flux, captured power, and annual energy production.
Prosthetic Socket Sizing Calculator
Calculate prosthetic socket dimensions including circumference reduction, length, wall thickness, and material recommendation based on activity level.
Hearing Aid Gain Calculator
Calculate prescribed hearing aid gain at multiple frequencies using NAL-NL2 prescription method based on audiometric hearing loss.
Wheelchair Seating Calculator
Calculate wheelchair seat dimensions including width, depth, height, backrest, armrest, and cushion type based on body measurements.
Ventilator Settings Calculator
Calculate initial ventilator parameters including ideal body weight, tidal volume, respiratory rate, minute ventilation, PEEP, and FiO₂.
Dialysis Adequacy Calculator
Calculate Kt/V and Urea Reduction Ratio (URR) to assess hemodialysis adequacy using the Daugirdas second-generation formula.
Cardiac Output Calculator
Calculate cardiac output using the Fick equation and stroke volume method. Also estimates cardiac index and systemic vascular resistance.
CPAP Pressure Calculator
Predict starting CPAP pressure based on BMI, AHI, neck circumference, and positional data using the Hoffstein prediction model.
Radiation Therapy Dose Calculator
Calculate dose per fraction, BED (biologically effective dose), EQD2, treatment duration, and weekly dose for radiation therapy planning.
Medical Device Sterilization Calculator
Calculate sterilization cycle parameters including exposure time, temperature, aeration time, and cost for steam, EtO, gamma, and plasma methods.
Biomechanical Force Calculator
Calculate joint forces, moments, muscle force, compressive force, and shear force during movement for biomechanical analysis.