Running Pace Calculator — Fill Two, Get the Third

Pace per kilometer, finish time or distance.

FREE · NO SIGN-UP · RUNS ON YOUR DEVICE

Your runs stay on your device

  • min/kmAND MIN/MILE
  • 4RACE DISTANCES
  • 3THINGS IT SOLVES
  • 0SIGN-UP
Specification

Running Pace Calculator at a glance

Solves for
Pace, time or distance
Distances
Presets or your own distance
Pace units
Per km, per mile, plus speed
Race table
Four finish times at your pace
Formats
h:mm:ss and mm:ss
Price
Free
Account required
None
Where it runs
On your device
How to

How to use Running Pace Calculator

  1. 1

    Say what you are missing

    Choose what to solve.

  2. 2

    Enter the two you have

    Fill in the other two.

  3. 3

    Check the race table

    Read the race times.

Questions

Frequently asked questions

How do I find the pace from a run I did?

Choose pace, set the distance, and put in the time it took. The per-kilometer and per-mile figures come back together.

Can I enter the distance in miles?

Distances go in as kilometers. Pace is always shown both per kilometer and per mile, so the mile figure is there without converting.

Is the marathon time in the table a prediction?

It is what the distance takes at the pace on screen, held the whole way. Real races over long distances usually come in slower than that.

What format does the time need?

Hours, minutes and seconds, like 0:50:00 for fifty minutes. Pace is minutes and seconds, like 5:00.

Background

Using pace as a training number

Pick the one you want and fill in the other two. Distances go in as kilometers, common races are preset, and the pace comes back per kilometer and per mile.

  • The race table assumes the pace holds for the whole distance, so read the long ones as a ceiling.
  • A kilometer pace times 1.609 is the mile pace, which is why both sit on screen together.
  • Even pacing usually beats a fast start, because the time lost late is bigger than the time gained early.
  • Type any distance rather than rounding to the nearest preset; the pace changes more than you would expect.

Full specification

Specification of the Running Pace Calculator tool
Solves forWhichever of pace, time and distance you are missing, once the other two are in.
DistancesPreset at 5K, 10K, half marathon and marathon, or type any distance in kilometers.
Pace unitsPer kilometer and per mile at the same time, with speed in kilometers per hour.
Race tableFinish times for the four preset distances, worked out at whatever pace is on screen.
FormatsTimes as hours, minutes and seconds; pace as minutes and seconds.
PriceFree. Supported by clearly labelled ads placed outside the working area.
Account requiredNo.
Where it runsIn your browser tab. Nothing is sent anywhere.
Next step

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