Bicycle Power vs Vertical Jump
The bicycle power calculator and the vertical jump calculator both measure leg power, but they sit at opposite ends of the effort spectrum. The bicycle power calculator models a sustained, steady-state cycling scenario: rolling resistance, grade, and aerodynamic drag forces are summed and multiplied by ground speed to report mechanical power in watts. The vertical jump calculator measures one explosive effort: each trial height equals jump reach minus standing reach, the best of three trials is reported with the observed range, and the page can show a clearly labeled empirical power estimate without making it a verdict. The genuine choice is which athletic quality you can measure consistently — sustained aerobic power output from a modeled scenario, or an explosive single jump from a tape-and-wall protocol.
What each calculator does
The bicycle power calculator computes a mechanical-power scenario from measured motion and explicit resistance. Rolling force is Crr × mass × 9.80665, grade force is mass × 9.80665 × grade/100, and aerodynamic force is ½ × density × CdA × relative-air-speed squared; wheel power is total force × ground speed, and input power divides by efficiency. In the article’s example — 75 kg, Crr 0.005, 2% grade, 10 m/s ground speed, 2 m/s headwind, CdA 0.32 m², density 1.204 kg/m³, 100% efficiency — the forces come to 3.677 N, 14.710 N, and 27.740 N, and input power is 461.3 W. All coefficients are scenario values you supply, and the result is sensitivity arithmetic rather than performance guidance.
The vertical jump calculator measures jump height from standing reach and three jump-reach trials under the page’s documented tape-and-wall protocol. Each trial height equals jump reach minus standing reach; the highest trial is the best jump and all three define the observed range. With a 220 cm standing reach and reaches of 273, 275, and 274 cm, the trials are 53, 55, and 54 cm — best 55.0 cm, observed range 53.0 to 55.0 cm. Calculations use unrounded values with rounding only for display, and the reach subtraction provides no power, performance-level, readiness, training, safety, or injury conclusion on its own.
Side-by-side comparison
| Feature | Bicycle Power Calculator | Vertical Jump Calculator |
|---|---|---|
| What it computes | Mechanical power (watts) for a cycling scenario | Jump height from reach subtraction |
| Inputs | Speed, grade, mass, Crr, CdA, density, wind, efficiency | Standing reach plus three jump reaches |
| Method | Sum rolling + grade + drag forces; power = force × speed ÷ efficiency | Trial height = jump reach − standing reach; best of three |
| Worked example | 75 kg, 2% grade, 10 m/s, 2 m/s headwind → 461.3 W | 220 cm reach, jumps 273/275/274 → 55.0 cm best |
| Effort type | Sustained, steady-state scenario | Explosive single effort |
| Optional power output | Core result, in watts | Empirical estimate, labeled and non-verdict |
When to use which
Use the bicycle power calculator when you can supply the motion and resistance inputs of a cycling scenario and want the mechanical power and its force breakdown — a modeled, sustained-effort quantity in watts. Use the vertical jump calculator when you can measure reach against a wall under the documented protocol and want a jump-height figure with the spread across attempts — a direct, measured single-effort quantity in centimeters. Both are most useful when measurement conditions stay consistent across sessions: coefficients and inputs for the power model, and the same protocol for the jump test. They answer different questions about the same muscle groups, so track them separately rather than combining them into one fitness score.
Where to start
- Bicycle power calculator — mechanical power from measured motion and explicit resistance inputs.
- Vertical jump calculator — measured jump height from standing reach and three jump-reach trials.
Informational note: This page is an educational comparison. The power result is sensitivity arithmetic from user-supplied coefficients, and the jump result is reach subtraction only, with any power estimate clearly labeled. Neither calculator provides a performance-level, readiness, training, safety, or medical conclusion.