buncha.tools
buncha/health & fitness/pace

Running Pace Calculator

Calculate
Distance (km)
Time
Your pace
5:00 /km
Speed: 12.00 km/h · 7.46 mph
Race time predictions at this pace
1 mile8:03
5K25:00
10K50:00
Half marathon1:45:29
Marathon3:30:59
50K ultra4:10:00
Real race times factor in fatigue. Longer races run slightly slower than even pace.
Show splits per km
1km
5:00
2km
10:00
3km
15:00
4km
20:00
5km
25:00

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About Running Pace Calculator

Calculate running pace, finish time, or distance. Race time predictions and splits.

Everything happens on your device. Close the tab and it's gone.
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Built browser-first. Run by one developer.
Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.
386
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Across 14 categories
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