Calculate average jumping force, jump height, or push-off distance or time with metric and imperial units using a work-energy or impulse model.
Jumping Force Formula or Method
The distance method equates average force work with gravitational and takeoff energy. The time method uses impulse-momentum over the upward propulsion interval.
How the Calculation Works
The requested output field is hidden, disabled, cleared, and made non-required. Only the source values required for the selected relationship remain available.
How to Use This Calculator
- Select the result you want in the Solve for menu.
- Enter only the visible source values and their explicit units.
- Select Calculate and review the primary answer, supporting values, and substituted steps.
- Use Reset before starting a different performance or scenario.
Worked Example
At 70 kg, a 0.50 m jump height and 0.25 m push-off distance produce about 2,059.40 N of average ground force, or 3.00 times body weight.
Input and Result Guide
| Item | How to use it |
|---|---|
| Body mass | Choose kilograms (kg) or pounds (lb). |
| Length | Choose metres (m), centimetres (cm), inches (in), or feet (ft). |
| Force | Choose newtons (N), pounds-force (lbf), or kilogram-force (kgf). |
| Distance method | Uses centre-of-mass push-off distance. |
| Time method | Uses upward propulsion time and net impulse. |
Interpreting the Result
Keep timing method, event distance, units, venue conditions, and scoring rules consistent when comparing results.
Assumptions and Limitations
Both methods estimate average total ground reaction force, not peak force. Results depend strongly on accurate centre-of-mass displacement or propulsion time and do not model technique, limb asymmetry, landing force, or force-plate waveforms.
Common Questions
Why did an input disappear when I changed Solve for?
The hidden field is the requested output. Enter the remaining visible values and the calculator will solve for that target.
Will my last successful calculation be restored?
Yes. The calculator saves enabled source values and the successful result in this browser. Reset clears that saved state.
Sources
Work-energy and impulse-momentum identities with standard gravity g = 9.80665 m/s².