Running Pace Calculator: Pace, Speed and Race Times

Enter a distance and time to get your pace per kilometre and per mile, your speed, and what that pace means for 5K, 10K, half-marathon and marathon times.

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How to use the running pace calculator

  1. Type your numbers in the boxes (pick your currency or units if asked).
  2. The answer updates as you type: no button to press.
  3. Copy the result, or share it on WhatsApp with one tap.

Questions

Can I keep the same pace for a marathon?

Most runners slow down over longer distances: these times assume an even pace.

Is my data private?

Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.

Is it free?

Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.