Vertical Jump vs Vertical Speed
Both of these sports-cluster tools deal with vertical movement, but they answer different questions. The vertical jump calculator measures a person: each trial height equals jump reach minus standing reach, and the best of three trials is reported with the observed range. The vertical speed calculator computes a neutral rate: signed vertical distance divided by elapsed time, expressed per second, per minute, and per hour. The genuine choice is which vertical quantity you can actually measure — an explosive single effort against a wall, or a sustained ascent or descent you can time over a known vertical distance.
What each calculator does
The vertical jump calculator takes a standing reach and three jump-reach trials in the same unit. Each trial height equals jump reach minus standing reach; the highest trial is the best jump and all three define the observed range. In the article’s worked example, a 220 cm standing reach with reaches of 273, 275, and 274 cm gives trials of 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.
The vertical speed calculator takes a signed vertical distance in meters or feet and an elapsed time in minutes and seconds. The distance is converted exactly — the international foot is 0.3048 meter — and divided by raw elapsed time to report neutral per-second, per-minute, and per-hour rates. Positive and negative values indicate direction only. Zero elapsed time triggers a validation message, and a nonzero rate whose supported fixed-precision values would all round to zero is reported as too small to display rather than as a zero result.
Side-by-side comparison
| Feature | Vertical Jump Calculator | Vertical Speed Calculator |
|---|---|---|
| What it computes | Jump height from reach subtraction | Ascent or descent rate from distance and time |
| Inputs | Standing reach plus three jump reaches | Signed vertical distance and elapsed time |
| Method | Trial height = jump reach − standing reach; best of three | Signed distance ÷ raw elapsed time |
| Outputs | Best jump and observed range | Per-second, per-minute, and per-hour rates |
| Units | Same unit as the reach entries | Meters or feet per unit time |
| Interpretation boundary | Measured human performance; no power verdict | Neutral rate; no aircraft, hiking, or personal-performance inference |
When to use which
Use the vertical jump calculator when you can measure reach against a wall and want a documented jump-height figure with the spread across attempts — the classic Sargent-style jump-reach protocol. Use the vertical speed calculator when you have a signed vertical distance and an elapsed time and want a planning rate, such as the vertical gain of a route divided by the time you expect to spend. Both tools are narrow by design: the jump result is a measurement of one explosive effort, and the vertical speed result is a neutral rate with direction but no performance claim. Neither should be read as a power, readiness, or injury verdict.
Where to start
- Vertical jump calculator — measured jump height from standing reach and three jump-reach trials.
- Vertical speed calculator — neutral ascent or descent rates from signed vertical distance and elapsed time.
Informational note: This page is an educational comparison. The vertical jump calculator reports measured reach subtraction only, and the vertical speed calculator reports a neutral rate with no personal-performance inference. Neither provides power, performance-level, readiness, training, safety, or medical conclusions.