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All HSE tools & calculators

One directory for exposure calculations, safety performance measures, briefings and planning worksheets.

Available HSE resources with type, topic and method
ResourceType / topicMethod / scopeOpen resource
TRIR calculator

Calculate total recordable incident rate from cases and hours worked.

KPI calculatorIncident ratesUS OSHA methodOpen
WBGT calculator

Combine measured wet-bulb, globe and air-temperature readings.

CalculatorHeat exposureMeasured sensor inputsOpen
DART rate calculator

Find the rate of cases involving days away, restriction or transfer.

KPI calculatorIncident ratesUS OSHA methodOpen
Noise exposure calculator

Combine noise levels and task durations into daily exposure.

CalculatorNoise exposureGB · 8-hour referenceOpen
Toolbox talk builder

Create an editable site briefing with actions and attendance.

Tool / templateSafety briefingsEditable templateOpen
NIOSH lifting calculator

Calculate an origin lifting index using verified manual multipliers.

CalculatorErgonomicsOrigin RNLE worksheetOpen
Fire extinguisher quantity planner

Estimate units using coverage supplied by your fire assessor.

Tool / templateFire protectionAssessed coverage onlyOpen
Man-hours calculator

Total worked or planned person-hours for a shared schedule.

CalculatorWorkforce planningPerson-hours arithmeticOpen
Two-leg sling tension calculator

Check static leg tension using angle and an entered capacity.

CalculatorLifting operationsSymmetric two-leg modelOpen
Fall clearance worksheet

Add verified equipment allowances and compare available clearance.

Tool / templateWork at heightEquipment-specific inputsOpen
Man-days calculator

Convert person-hours to person-days on your stated time basis.

CalculatorWorkforce planningPerson-day arithmeticOpen
LTIFR calculator

Calculate lost-time injury cases per million hours worked.

KPI calculatorIncident ratesLost-time cases · 1,000,000 hOpen
Accident frequency rate calculator

Normalise new occupational injury cases to a million-hour basis.

KPI calculatorIncident ratesInjury cases · 1,000,000 hOpen
Injury severity rate calculator

Calculate recorded lost workdays per 1,000 hours worked.

KPI calculatorIncident ratesLost workdays · 1,000 hOpen
Chemical TWA calculator

Combine one substance’s concentration readings across eight hours.

CalculatorChemical exposureSingle substance · 8 hOpen
Hand-arm vibration calculator

Combine tool trigger times into daily A(8) and exposure points.

CalculatorVibration exposureGB · HAV A(8)Open
Whole-body vibration calculator

Assess daily x/y/z RMS exposure and the highest daily axis.

CalculatorVibration exposureGB · Three-axis A(8)Open
Ladder length calculator

Estimate ladder length and base offset using UK-style geometry.

CalculatorWork at height4 up : 1 out · geometryOpen
Excavation slope calculator

Find top width and slope angle from an assessed H:V ratio.

CalculatorExcavation planningSymmetrical geometry onlyOpen
IP rating decoder

Interpret the two main characters of a declared enclosure IP code.

Tool / templateEquipment protectionIP-code explanationOpen
Showing 20 resourcesFree to use · No account needed

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Read each resource’s scope, input units and original references. Worked examples illustrate the calculation; they are not recommended values for your site.

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