Aviation, Marine & Transport
Aircraft, vessels and commercial transport — weight and balance, fuel and range, hull and stability, fleet cost and transit planning.
Aircraft, vessels and commercial fleets. Weight and balance, density altitude and takeoff distance, crosswind components, fuel burn, range and reserves, and flight-plan timing.
Marine covers hull speed and displacement, stability and freeboard, propeller and engine matching, anchor rode and ground tackle, and commercial vessel loading and voyage cost.
Road and rail transport operations — cost per mile, load factors, driver hours, fleet replacement timing, and transit headways and service frequency — complete the hub.
106 calculators in 3 sections.
Matches are ranked by relevance. Use CtrlK anytime to search the full site.
Aviation & Flight Planning
Weight and balance, density altitude, crosswind, fuel, range and timing.
Density Altitude Calculator
Calculate density altitude for flight performance planning.
Pressure Altitude Calculator
Field elevation corrected for non-standard pressure.
True Airspeed (TAS) Calculator
Convert IAS to TAS corrected for altitude and temperature.
Airspeed Converter
Convert between all airspeed types: IAS, CAS, TAS, Mach.
Wind Triangle (E6B) Calculator
Calculate heading, WCA, and ground speed from wind.
Crosswind Component Calculator
Break wind into headwind and crosswind for any runway.
Weight & Balance Calculator
Compute aircraft weight and CG for safe loading.
Fuel Planning Calculator
Calculate total fuel needed including legal reserves.
Takeoff Distance Calculator
Corrected takeoff distance for real-world conditions.
Landing Distance Calculator
Corrected landing distance for real-world conditions.
Top of Descent Calculator
Plan your descent point and rate.
Climb Gradient Calculator
Convert ROC to climb gradient and check obstacle clearance.
Cloud Base Estimator
Estimate cloud ceiling from temp and dewpoint.
Standard Atmosphere (ISA) Calculator
ISA temperature, pressure, and density at any altitude.
Heading & Course Converter
Convert between true, magnetic, and compass headings.
Holding Pattern Calculator
Entry type, fuel burn, and speed limits for holds.
Hydroplaning Speed Calculator
Hydroplaning threshold from tire pressure.
Oxygen Duration Calculator
Estimate supplemental oxygen endurance.
Great Circle Distance Calculator
Shortest distance between two coordinates.
Flight Time & Fuel Cost Calculator
Flight time, fuel burn, and cost for any trip.
Flight School Cost Calculator
Estimate total flight training costs including aircraft rental, instructor fees, ground school, checkride, and exam fees for your pilot certificate.
Aircraft Operating Cost Calculator
Calculate per-hour and annual operating costs for your aircraft including fuel, maintenance reserves, insurance, and hangar fees.
FBO Fuel Price Calculator
Compare fuel costs at up to three FBOs, factoring in detour costs. Find the cheapest fuel stop for your flight plan.
Aircraft Lease vs Buy Calculator
Compare the total cost of leasing vs purchasing an aircraft. Factor in loan terms, residual value, and usage hours to find the best option.
Flight Instructor Revenue Calculator
Calculate monthly and annual income as a flight instructor based on flight hours, ground instruction, and billing rates.
Aircraft Annual Inspection Calculator
Estimate annual inspection costs based on aircraft age, engine hours, complexity, and historical findings. Plan your maintenance budget.
Pilot Currency Calculator
Track your FAA pilot currency requirements. See how many days remain for passenger carrying, IFR, flight review, and medical certificate currency.
Aircraft Partnership Calculator
Calculate co-ownership costs for an aircraft partnership. See buy-in cost, monthly fixed costs, and cost per hour for each partner.
Hangar Rent Calculator
Estimate monthly hangar rental costs based on aircraft dimensions, region, and hangar type. Compare with tie-down alternatives.
Aircraft Upgrade ROI Calculator
Analyze the return on investment for aircraft upgrades. Compare upgrade cost against value added, annual savings, and useful life.
VFR Flight Planner Calculator
Route planning with wind correction, groundspeed, time enroute, and fuel estimates.
IFR Fuel Planning Calculator
Fuel requirements with alternate airport and reserve calculations per FAR 91.167.
Performance Takeoff Calculator
Takeoff ground roll and total distance corrected for density altitude, weight, wind, and gradient.
Performance Landing Calculator
Landing ground roll and total distance corrected for density altitude, weight, wind, and runway condition.
Mountain Flying Calculator
Density altitude, climb performance, and ridge clearance analysis for mountain flying operations.
NOTAM Impact Assessment Calculator
Assess flight plan impact from TFRs, runway closures, navaid outages, and altitude restrictions.
Weight and Balance (Expanded) Calculator
Multi-station weight & balance with CG envelope checks for fuel burn and passenger loading.
Circling Approach Calculator
Circling approach minimums, category, radius, and visibility requirements per FAA TERPS.
Glide Distance Calculator
Maximum glide range from altitude, glide ratio, wind, and bank angle for engine-out planning.
Emergency Descent Calculator
Emergency descent time, distance, and time of useful consciousness for rapid decompression scenarios.
Trucking, Fleet & Transit
Cost per mile, load factors, driver hours, replacement timing and headways.
Bridge Formula Calculator
Calculate maximum legal weight by axle spacing using Federal Bridge Formula B.
CDL Trip Planner
Plan HOS-compliant driving schedules with rest stops and fuel breaks.
Deadhead Mile Cost
Calculate the true cost of empty miles and their impact on profitability.
Freight Rate Calculator
Calculate per-mile rate from fuel, insurance, maintenance, and driver costs.
IFTA Fuel Tax Calculator
Calculate fuel tax apportionment across jurisdictions for IFTA reporting.
Load Weight Distribution
Calculate axle weights for legal compliance with federal weight limits.
Owner-Operator Profit Calculator
Calculate net income after all expenses for owner-operator truckers.
Reefer Fuel Consumption
Calculate refrigeration unit fuel consumption from temperature differential.
Truck Depreciation Calculator
Calculate annual depreciation for fleet management and tax purposes.
Truck Tire Cost Calculator
Calculate per-mile tire cost including retreads for fleet budgeting.
Driver Safety Score
Calculate a composite safety score from driving behavior metrics.
Fleet Carbon Emissions
Calculate total fleet CO2 emissions across all fuel types.
Fleet Electrification Calculator
Compare total cost of ownership between ICE and EV fleet vehicles.
Fleet Fuel Economy Tracker
Track fleet-wide MPG and fuel costs across all vehicles.
Fleet Insurance Cost Calculator
Estimate per-vehicle insurance cost with fleet size discounts.
Preventive Maintenance Schedule
Track service intervals and upcoming maintenance by mileage.
Route Optimization Savings
Calculate fuel and time savings from route optimization.
Telematics ROI Calculator
Calculate return on investment for GPS tracking and telematics systems.
Vehicle Replacement Calculator
Determine optimal replacement timing from maintenance and depreciation curves.
Vehicle Upfit Cost Calculator
Calculate equipment installation costs for work trucks and vans.
ADA Paratransit Cost Calculator
Calculate ADA paratransit operating costs per trip, daily, and annually based on service parameters.
Bicycle Infrastructure Cost Calculator
Estimate construction and maintenance costs for bike lanes, protected lanes, and multi-use paths.
BRT Corridor Capacity Calculator
Calculate Bus Rapid Transit corridor capacity, station count, and travel time based on headway and route design.
Bus Route Optimization Calculator
Calculate optimal bus headways and fleet size based on route length, speed, and ridership demand.
Complete Streets Cost Calculator
Estimate multi-modal roadway construction costs including vehicle lanes, bike lanes, sidewalks, and landscaped medians.
Travel Mode Split Calculator
Estimate transportation mode share based on population density, transit access, parking costs, and bike infrastructure.
Park-and-Ride Lot Calculator
Calculate park-and-ride lot size, ADA spaces, and area requirements based on transit ridership.
Pedestrian Level of Service Calculator
Calculate sidewalk level of service using HCM methodology based on width, flow rate, and obstructions.
Rail Station Capacity Calculator
Calculate rail station platform capacity, hourly throughput, and peak load based on train frequency and consist size.
Transit Fare Revenue Calculator
Project transit fare revenue from ridership, base fares, transfer discounts, and pass programs.