Fall Factor Calculator
Calculate the fall factor from fall distance and rope paid out. Estimate impact force and severity rating to understand climbing fall dynamics.
Inputs
Results
Fall Factor
0.5
Estimated Impact Force
2.54 kN
How to Use This Calculator
- Enter the total fall distance in meters — this is from the climber's position to where the rope becomes taut, including slack above the last piece.
- Input the rope paid out in meters — the length of rope between the belayer and climber at the moment of the fall.
- Read the Fall Factor (0–2): values below 0.3 are low-severity; above 1.0 are serious or critical.
- Check Estimated Impact Force in kN — values above 9 kN approach the UIAA limit for anchors and gear.
- Use the Severity Rating (Low / Moderate / Serious / Severe / Critical) to evaluate risk before committing to a route.
- Review Fall Energy in Joules to understand the dynamic loading your rope must absorb.
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