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All HSE tools & calculators
One directory for exposure calculations, safety performance measures, briefings and planning worksheets.
| Resource | Type / topic | Method / scope | Open resource |
|---|---|---|---|
TRIR calculator Calculate total recordable incident rate from cases and hours worked. | KPI calculatorIncident rates | US OSHA method | Open |
WBGT calculator Combine measured wet-bulb, globe and air-temperature readings. | CalculatorHeat exposure | Measured sensor inputs | Open |
DART rate calculator Find the rate of cases involving days away, restriction or transfer. | KPI calculatorIncident rates | US OSHA method | Open |
Noise exposure calculator Combine noise levels and task durations into daily exposure. | CalculatorNoise exposure | GB · 8-hour reference | Open |
Toolbox talk builder Create an editable site briefing with actions and attendance. | Tool / templateSafety briefings | Editable template | Open |
NIOSH lifting calculator Calculate an origin lifting index using verified manual multipliers. | CalculatorErgonomics | Origin RNLE worksheet | Open |
Fire extinguisher quantity planner Estimate units using coverage supplied by your fire assessor. | Tool / templateFire protection | Assessed coverage only | Open |
Man-hours calculator Total worked or planned person-hours for a shared schedule. | CalculatorWorkforce planning | Person-hours arithmetic | Open |
Two-leg sling tension calculator Check static leg tension using angle and an entered capacity. | CalculatorLifting operations | Symmetric two-leg model | Open |
Fall clearance worksheet Add verified equipment allowances and compare available clearance. | Tool / templateWork at height | Equipment-specific inputs | Open |
Man-days calculator Convert person-hours to person-days on your stated time basis. | CalculatorWorkforce planning | Person-day arithmetic | Open |
LTIFR calculator Calculate lost-time injury cases per million hours worked. | KPI calculatorIncident rates | Lost-time cases · 1,000,000 h | Open |
Accident frequency rate calculator Normalise new occupational injury cases to a million-hour basis. | KPI calculatorIncident rates | Injury cases · 1,000,000 h | Open |
Injury severity rate calculator Calculate recorded lost workdays per 1,000 hours worked. | KPI calculatorIncident rates | Lost workdays · 1,000 h | Open |
Chemical TWA calculator Combine one substance’s concentration readings across eight hours. | CalculatorChemical exposure | Single substance · 8 h | Open |
Hand-arm vibration calculator Combine tool trigger times into daily A(8) and exposure points. | CalculatorVibration exposure | GB · HAV A(8) | Open |
Whole-body vibration calculator Assess daily x/y/z RMS exposure and the highest daily axis. | CalculatorVibration exposure | GB · Three-axis A(8) | Open |
Ladder length calculator Estimate ladder length and base offset using UK-style geometry. | CalculatorWork at height | 4 up : 1 out · geometry | Open |
Excavation slope calculator Find top width and slope angle from an assessed H:V ratio. | CalculatorExcavation planning | Symmetrical geometry only | Open |
IP rating decoder Interpret the two main characters of a declared enclosure IP code. | Tool / templateEquipment protection | IP-code explanation | Open |
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