Field tools
Quick calculators for the numbers that come up on a job, like incident rates, sling loads and fall clearance, with the math and the rule behind every answer.
TRIR and DART rate calculator
TRIR, DART and lost-time rate from your log and hours
Heat index calculator
Apparent temperature from air temperature and humidity
Sling angle and leg tension calculator
Tension in each leg of a bridle
Ladder 4-to-1 setup calculator
Base distance and length for a leaning ladder
Fall clearance calculator
Clearance needed below a shock-absorbing lanyard
Excavation sloping calculator
Slope, setback and top width by soil type
Noise dose and TWA calculator
Daily dose and 8-hour TWA across tasks
Wind chill calculator
How cold it feels on exposed skin
Need numbers you can stand behind?
We review lift plans, fall protection plans, excavation plans and heat illness programs for the job in front of you. You'll have a written quote within three business days.