Safety, Compliance & Emergency
OSHA and occupational health, industrial hygiene exposure limits, fire protection, hazmat and emergency management.
Regulatory compliance for one audience: the person who has to prove the site is safe. Recordable incident rates, TRIR and DART, job hazard scoring, ergonomic lifting limits and PPE selection.
Industrial hygiene has a named section. Occupational exposure limits and PEL/TLV comparison, 8-hour time-weighted average and shift-adjusted exposure limits, mixed-exposure additive effects, noise dose and hearing conservation triggers, and ventilation and capture velocity are all here.
Fire protection covers sprinkler demand and hydraulic calculations, occupant load and egress width, and extinguisher coverage. Hazmat and emergency management cover placarding, isolation distances, spill volumes and evacuation timing. Food safety covers cooling and cooking times, and HACCP critical limits.
81 calculators in 4 sections.
Matches are ranked by relevance. Use CtrlK anytime to search the full site.
OSHA & Industrial Hygiene
Incident rates, exposure limits and TWA, noise dose, ergonomics and PPE.
Confined Space Air Monitoring Calculator
Evaluate LEL, O2, H2S, and CO readings against OSHA action levels for permit-required confined spaces.
Ergonomic Risk Assessment Calculator
Calculate RULA/REBA-inspired ergonomic risk scores and strain index from workplace posture and force data.
Fall Protection Calculator
Calculate total fall distance, required clearance, and SRL alternatives for fall arrest systems.
Lockout/Tagout Calculator
Calculate required locks, tags, and procedure time for energy isolation per OSHA 1910.147.
Machine Guarding Calculator
Calculate safe opening sizes and guard distances for machine guarding per OSHA standards.
Noise Exposure Calculator
Calculate TWA noise dose and determine hearing protection requirements per OSHA standards.
OSHA Fine Estimator
Estimate OSHA penalties based on violation type, gravity, employer size, and mitigating factors.
OSHA Recordable Rate Calculator
Calculate TRIR and DART rates from hours worked and incident counts.
PPE Selection Calculator
Determine required PPE categories and estimated costs from hazard assessment.
Safety Training Cost Calculator
Calculate total safety training costs including trainer fees, employee labor, and materials.
Ergonomic Workstation Score Calculator
Workstation setup scoring from anthropometric assessment.
Manual Handling Risk Calculator
NIOSH lifting equation revised weight limit.
Repetitive Strain Risk Calculator
RSI risk scoring from task frequency and force.
Vision Display Terminal Calculator
Screen distance and height from workstation assessment.
Shift Work Health Risk Calculator
Health risk scoring from shift pattern and duration.
Return to Work Calculator
Modified duty parameters from injury and job demands.
Workplace Wellness ROI Calculator
Return from wellness program: healthcare and absenteeism.
Drug Testing Cost Calculator
Testing program cost from employee count and frequency.
First Aid Kit Calculator
Kit contents from employee count and workplace hazards.
Workplace Air Quality Calculator
CO2, humidity, and temperature assessment for IAQ.
Hearing Loss (PTA)
Pure-tone average 500–1k–2k Hz and WHO-style severity label.
Air Sampling Volume Calculator
Calculate total air sample volume from pump flow rate and duration, with STP correction and concentration conversion from analytical results.
PEL Compliance Calculator
Calculate Time-Weighted Average (TWA) exposure and compare against the OSHA Permissible Exposure Limit to assess compliance.
Ventilation Dilution Calculator
Calculate required dilution ventilation airflow (CFM) to maintain a target airborne concentration from a known contaminant generation rate.
Local Exhaust Design Calculator
Calculate required hood airflow, duct size, and face velocity for local exhaust ventilation systems using ACGIH capture velocity principles.
Noise Dose Calculator
Calculate OSHA noise dose percentage and TWA from segmented dBA exposures using the 5-dB exchange rate formula.
Heat Stress Index Calculator
Calculate WBGT (Wet Bulb Globe Temperature) and determine ACGIH-recommended work/rest regimes based on workload intensity.
Biological Monitoring Calculator
Compare biological specimen results (blood or urine) against ACGIH Biological Exposure Indices (BEIs) with creatinine correction for urine samples.
Respirator Selection Calculator
Determine the required OSHA Assigned Protection Factor (APF) and recommended respirator type from airborne concentration and occupational exposure limit.
Radiation Dose Calculator
Calculate occupational radiation dose from external gamma sources using inverse square law, shielding HVLs, and compare against OSHA/NRC annual dose limits.
Chemical Exposure Assessment Calculator
Estimate airborne chemical concentration using the AIHA well-mixed room model, calculate exposure index versus OEL, and assign a risk rating.
Fire Protection
Sprinkler demand, occupant load and egress, extinguisher coverage and ratings.
Fire Suppression System Cost Calculator
Clean agent, foam, or sprinkler system cost comparison.
Kitchen Hood Suppression Calculator
Kitchen fire suppression system sizing from hood dimensions.
Data Center Fire Protection Calculator
Clean agent system sizing for IT room protection.
Fire Door Rating Calculator
Required fire rating from wall construction and occupancy.
Smoke Control Design Calculator
Smoke exhaust and pressurization for high-rise buildings.
Fire Department Connection Calculator
FDC requirements from system type and demand.
Standpipe System Design Calculator
Standpipe class and sizing from building height and use.
Fire Alarm NAC Calculator
Notification appliance circuit load and voltage drop.
Emergency Voice System Calculator
Speaker placement and wattage for fire alarm voice systems.
Fire Water Storage Calculator
Fire water tank capacity from sprinkler demand and fire flow.
Emergency Lighting Calculator
Calculate emergency lighting units, exit signs, and battery capacity per NFPA 101/IBC.
Fire Alarm Coverage Calculator
Calculate detector count and spacing per NFPA 72 for smoke and heat detectors.
Fire Egress Calculator
Calculate exit width, number of exits, and travel distance based on occupant load per IBC.
Fire Extinguisher Placement Calculator
Calculate fire extinguisher count and spacing by hazard class per NFPA 10.
Fire Flow Calculator
Calculate required fire flow GPM from building construction type, area, and height.
Fire Pump Sizing Calculator
Calculate fire pump GPM, pressure, and motor HP from sprinkler demand per NFPA 20.
Fire Resistance Rating Calculator
Calculate fire resistance rating from material type and thickness, compare to IBC requirements.
Fire Sprinkler Design Calculator
Calculate sprinkler head count, spacing, design density, and pipe sizing per NFPA 13.
Occupant Load Calculator
Calculate maximum occupancy from floor area and use type per IBC Table 1004.5.
Smoke Detector Spacing Calculator
Calculate smoke detector grid layout and spacing for different ceiling types per NFPA 72.
Hazmat & Emergency Management
Placarding, isolation distances, spill volumes and evacuation planning.
Air Monitoring Action Levels Calculator
Interpret PID/FID readings against site-specific action levels and determine PPE protection level.
Chemical Exposure Limit Calculator
Compare measured concentrations against OSHA PEL, ACGIH TLV, and STEL values.
Decontamination Solution Calculator
Calculate decon mix ratios, quantities, and contact times for various contaminant types.
DOT Hazmat Shipping Calculator
Determine DOT packaging, labeling, and placarding requirements by hazard class and quantity.
Emergency Response Distance Calculator
Determine initial isolation and protective action distances per the DOT Emergency Response Guidebook.
Hazmat Training Requirements Calculator
Calculate required HAZWOPER, DOT, and RCRA training hours and costs by role.
Secondary Containment Calculator
Calculate secondary containment volume and dimensions per EPA SPCC requirements.
Spill Volume & Containment Calculator
Calculate spill containment volume needed per EPA SPCC requirements.
Vapor Dispersion Calculator
Estimate downwind hazard distance using Gaussian plume dispersion modeling.
Waste Characterization Calculator
Determine RCRA hazardous waste status, generator category, and compliance requirements.
Emergency Kit Calculator
Calculate 72-hour emergency kit supplies for your household — water, food, batteries, first aid, and more.
Evacuation Route Planner Calculator
Estimate evacuation clearance time from population size, road lanes, distance, and traffic-flow capacity.
Shelter Capacity Calculator
Calculate emergency shelter capacity from floor area, per-person space standards, and resource needs.
Disaster Recovery Cost Calculator
Estimate total disaster recovery costs including structural repair, contents replacement, debris removal, and temporary housing.
Emergency Generator Fuel Calculator
Calculate fuel storage needs for emergency generator runtime based on generator size, load, fuel type, and duration.
Water Purification Calculator
Calculate emergency water purification needs by household size, duration, and purification method.
Emergency Communication Range Calculator
Estimate two-way radio range for emergency communications based on power, antenna height, terrain, and frequency band.
CERT Team Sizing Calculator
Calculate Community Emergency Response Team (CERT) staffing, team structure, and training requirements from population and coverage goals.
Flood Damage Estimator Calculator
Estimate residential flood damage from flood depth using USACE depth-damage curves, including structural, contents, remediation, and insurance gap.
Hurricane Preparation Cost Calculator
Estimate hurricane preparation costs: window protection, sandbags, roof reinforcement, supplies, generator, and evacuation.
Food Safety
Cooling and cooking times, HACCP critical limits and sanitiser concentration.
Cook-Chill Production Calculator
Calculate batch sizing, blast chilling cycles, and production timelines for cook-chill operations.
Cooling Time Calculator
Calculate cooling compliance for FDA 2-stage cooling requirements (135°F to 41°F).
Food Allergen Cross-Contact Risk Calculator
Assess cross-contact risk from shared equipment, cleaning methods, and allergen controls.
Food Recall Cost Calculator
Estimate direct and indirect costs of a food recall including product loss, logistics, and brand damage.
Food Thermometer Calibration Calculator
Calculate thermometer accuracy using ice-point or boiling-point methods with elevation correction.
HACCP Critical Limit Calculator
Evaluate time/temperature critical limits for different food types per FDA Food Code.
Health Inspection Score Calculator
Calculate weighted health inspection scores from critical, major, and minor violations.
Sanitizer Concentration Calculator
Calculate PPM dilution ratios for chlorine, quat, and iodine sanitizers per FDA Food Code.
Shelf Life Predictor
Predict food shelf life from water activity, temperature, pH, and preservative use.
Temperature Log Analyzer
Analyze temperature log data for compliance with cold, frozen, or hot holding requirements.