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Running Pace Calculator

Work out running pace, finish time or distance, per kilometre or per mile, with race presets.

Find
Units

h:mm:ss or mm:ss

Result

Fill in the other two values and select Calculate.

Runs in your browser — nothing you enter is sent to a server.

How the Running Pace Calculator works

Choose what to find — pace, finish time or distance — and fill in the other two. Enter times as h:mm:ss or mm:ss. Pick kilometres or miles, or choose a race (5K, 10K, half marathon 21.0975 km, marathon 42.195 km) to fill in the distance. The result also shows your pace in the other unit and your speed.

Formulas

Pace

pace = time ÷ distance

Speed

speed = distance ÷ time, 1 mile = 1.609344 km

Examples

10 km in 50 minutes

Pace 5:00 per km (8:03 per mile), speed 12 km/h.

A marathon at 5:00 per km

42.195 km × 5:00 = a finish time of 3:30:59.

Frequently asked questions

How do I pace a race?

Aim for even splits — the same pace each kilometre — or a slightly faster second half. Starting too fast is the most common mistake.

Why doesn't my watch match?

GPS often measures a little long on curvy courses, and races are measured along the shortest line. Use the official distance for targets.

Can I use it for walking or cycling?

Yes. Pace and speed work the same way for any activity.

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