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Running Pace Calculator

Enter a race distance and finish time to get your pace per mile and per kilometer, and predicted times for other distances.

Running pace calculator

Pace

8:51 /mi

5:30 /km · 6.8 mph

Predicted 5K
26:23
Predicted 10K
55:00
Predicted Half marathon
2:01:21
Predicted Marathon
4:13:01

Race predictions use Riegel's formula, T₂ = T₁ × (D₂/D₁)^1.06.

Frequently asked questions

What pace is a 2-hour half marathon?

About 9:09 per mile (5:41 per km).

What pace do I need for a 4-hour marathon?

About 9:09 per mile, or 5:41 per km.

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