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Running Pace Calculator

Enter any two of distance, time, and pace to calculate the third, with pace shown in minutes per kilometer.

Runs locally in your browser. This tool does not upload your input.

Inputs

Results

Pace
5:00 min/km
Speed
12.00 km/h

Pace is entered and shown as minutes:seconds per kilometer.

How to calculate running pace

Enter any two of distance, time, and pace to calculate the third — useful for planning a run or checking a race result.

How pace is shown

Pace is entered and displayed as minutes:seconds per kilometer, the most common way runners talk about pace.

Common uses

  • Plan a target finish time for a race distance.
  • Check your average pace from a run's total distance and time.
  • See how long a given distance takes at a target pace.

Worked example

Running 10 km in 50 minutes works out to a 5:00 min/km pace and a 12 km/h speed.

Calculation notes

All math runs in your browser; nothing you enter is sent anywhere.

FAQ

What time format should I use?

Use H:MM:SS for times over an hour, or MM:SS otherwise — for example 1:05:00 or 25:30.

Does it support miles?

Distance and pace are calculated in kilometers. Convert your distance to kilometers first if you're working in miles.

Which mode should I use to plan a race?

Use "distance + pace → time" with your goal pace to see the finish time it would produce for that race distance.