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All 6 occupational health and ergonomics calculators
Airborne Contaminant TWA Ceiling Calculator
Combines concentration-duration entries into an actual-shift average, reference-period equivalent, entered-limit ratios, and a separate ceiling screen without embedding chemical exposure-limit data.
Hand Arm Vibration A8 Calculator
Combines up to 12 task-specific hand-arm vibration exposures into daily A(8), HSE exposure points, threshold utilization, and a dominant-task result.
Hearing Protector Attenuation Calculator
Estimates a protected A-weighted level from an individual fit-test Personal Attenuation Rating (PAR) or OSHA Noise Reduction Rating (NRR) adjustment methods.
Occupational Noise Dose TWA Calculator
Compares the same multi-segment workday under OSHA permissible-exposure-limit, OSHA hearing-conservation, and NIOSH recommended-exposure-limit rules.
Revised NIOSH Lifting Equation Calculator
Calculates single-task Recommended Weight Limit and Lifting Index at the origin and, when significant destination control is required, at the destination.
WBGT Heat Stress Screening Calculator
Calculates measured and clothing-adjusted WBGT from natural wet-bulb, globe, and conditionally required dry-bulb sensor readings, then compares the result with user-entered thresholds.