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VMA calculator

Estimate your maximal aerobic speed from a 12-minute (Cooper) test.

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The VMA calculator turns Distance in 12 min (m) into VMA, instantly and for free. For instance, with Distance in 12 min (m) = 2,800 it returns VMA = 14 km/h.

How to use it

  1. Enter your values: Distance in 12 min (m).
  2. Read the result instantly: VMA.

Frequently asked questions

What does the VMA calculator actually compute?

It takes Distance in 12 min (m) and derives VMA from them. The calculation is live as you type, so the result updates on every change.

What information do I need to provide?

A single value: Distance in 12 min (m). Nothing else is required — no account, no file upload.

Can you show a worked example?

With Distance in 12 min (m) = 2,800, the calculator returns VMA = 14 km/h. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

What happens if I enter larger values?

It moves a lot. Using Distance in 12 min (m) = 3,080 instead, VMA goes from 14 km/h to 15.4 km/h — which is why it is worth testing a few scenarios rather than trusting a single figure.

What does it give for smaller values?

Scaled down to Distance in 12 min (m) = 2,520, VMA comes out at 12.6 km/h. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Preparing a race: the pace a target time needs, the splits to hold it, and the training zones that sit under it — on foot, and equally on a bike or in a pool, where the same session is measured in watts or in a hundred-metre split instead.

What is the most common mistake?

Scaling a time linearly to a longer distance. A marathon is not two half-marathons; race predictors use an exponent around 1.06 precisely because fatigue is not proportional.

What is the difference between the VMA calculator and the Cycling speed calculator?

This one returns VMA; the Cycling speed calculator returns Speed (km/h) and Speed (mph). That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Race time predictor is the closest one after this: Predict your finish time over a new distance from a recent race result (Riegel formula).

What else is worth having open alongside it?

Running calories calculator and Target race pace calculator — they come up in the same task often enough to be worth a second tab.

Further reading

All guides →
ExplainerMaximal Aerobic Speed: The One Number That Sets Every Training PaceMaximal aerobic speed is the slowest speed at which you reach your VO2max. Because it is a speed and not a heart rate, every training zone becomes a percentage of something you can measure on a track — and the whole week falls out of one test.ExplainerTraining Zones Are a Model, Not a MeasurementEvery zone scheme is a set of percentages of some anchor, and the anchor is the whole argument. One runner, three published schemes: the ceiling of easy aerobic work lands at 131, 141 or 150 bpm. And if the anchor is 220 minus age, a two-standard-deviation error moves one boundary by 30 bpm.GuideThe Cooper Test: Distance Standards by Age and What They MeanRun as far as you can in twelve minutes, then read the distance against your age and sex. The same number also converts straight into an estimated VO2 max — here is the table and the formula.How-toHow to Predict a Half Marathon Time from a 5K or 10KUse the Riegel formula to predict your half marathon time from a recent 5K or 10K, then turn that estimate into a realistic race-day pace with a smart pacing plan.ExplainerThe 10% Rule for Runners: Build Mileage Without InjuryThe 10% rule says to raise your weekly running mileage by no more than 10% at a time. Learn why it works, when to break it, and how to plan safe progression.ExplainerWhat Is Cycling FTP (Functional Threshold Power)?FTP is the highest power in watts you can hold for about an hour. Learn how to test it, why watts per kilogram matters, and how it guides training zones.