SmartQHSE · Open Source · MIT

Free HSE Calculators

30+ health, safety and environment (HSE / EHS / QHSE) calculators. Every formula cites the source regulation — OSHA, HSE UK, ISO 45001, ILO, NIOSH, ACGIH, NFPA. Zero signup, zero ads, zero runtime dependencies. Used by construction, oil & gas, manufacturing, and industrial safety teams worldwide.

Incident rate calculators

Cost & insurance

Occupational exposure

Environmental

Ergonomics

Fire safety

Workload & manhours

Risk scoring