Instant, Audit-Ready UK Health & Safety Calculations
Built for site managers, supervisors, and safety professionals. Fast, deterministic calculation tools based strictly on UK HSE guidance, L-Series codes, and British Standards.
Available Compliance ToolsSelect a calculator to begin
RIDDOR Reporting Decision Tree
Step-by-step logic to determine if an accident or dangerous occurrence is legally reportable and within what timeframe.
First Aid Needs Assessor
Calculate exact numbers of EFAW/FAW personnel and required British Standard first aid kits based on headcount and hazard level.
Workplace & Construction Welfare
Determine minimum sanitary conveniences, urinals, and washbasins for permanent workplaces and temporary construction sites.
HAVS Daily Exposure A(8)
Calculate tool trigger times and daily HSE exposure points against the 100-point EAV and 400-point ELV thresholds.
Fire Marshal / Warden Staffing
Calculate recommended fire warden coverage across multi-floor facilities, accounting for shift patterns and holiday absence buffers.
Manual Handling Risk Scorer
Digital version of the HSE Manual Handling Assessment Charts to score weights, posture, frequency, and grip.
COSHH Chemical Risk Scorer
Evaluate chemical hazards, exposure routes, and use frequency to determine mandatory LEV, enclosure, and PPE requirements.
Daily Noise Exposure LEP,d
Calculate daily personal noise exposure levels against the 80 dB lower action value and 85 dB upper action value thresholds.
Working at Height & Ladder Safety
Verify short-duration task exemptions and ground stability rules before deploying ladders or access equipment.