justyourcalculatorPace Calculator
Work out pace, finish time or distance, with splits for every mile or kilometer.
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Pace Calculator
Running pace, finish time or distance, with splits
Your pace
8:03 per mile
8:03 /mi · 5:00 /km
- Pace per mile
- 8:03 /mi
- Pace per kilometer
- 5:00 /km
- Speed
- 7.46 mph · 12 km/h
- Meters per second
- 3.33 m/s
- Distance
- 6.21 mi · 10 km
- Time
- 50:00
Race predictions use Riegel's formula (T2 = T1 × (D2 / D1)^1.06), most reliable for races from 1.5 km up to the marathon.
| Distance | Elapsed time |
|---|---|
| 1 mi | 8:03 |
| 2 mi | 16:06 |
| 3 mi | 24:08 |
| 4 mi | 32:11 |
| 5 mi | 40:14 |
| 6 mi | 48:17 |
| 6.21 mi | 50:00 |
| Race | Time | Pace /mi | Pace /km |
|---|---|---|---|
| Marathon (26.2 mi) | 3:50:01 | 8:46 | 5:27 |
| Half marathon (13.1 mi) | 1:50:19 | 8:25 | 5:14 |
| 10 miles | 1:22:48 | 8:17 | 5:09 |
| 15K | 1:16:51 | 8:15 | 5:07 |
| 10K | 50:00 | 8:03 | 5:00 |
| 8K | 39:28 | 7:56 | 4:56 |
| 5K | 23:59 | 7:43 | 4:48 |
| 1 mile | 7:13 | 7:13 | 4:29 |
| 1,500 meters | 6:42 | 7:11 | 4:28 |
| 800 meters | 3:26 | 6:55 | 4:18 |
| 400 meters | 1:39 | 6:38 | 4:07 |
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How the pace calculator works
Pace is time divided by distance, usually written as minutes per mile or per kilometer. Speed is the reverse: distance divided by time. Pick a tab for what you want to find: your pace, your finish time, or how far you'll go.
Enter times as h:mm:ss (1:45:30) or mm:ss (25:30). The splits table shows the elapsed time at each mile or kilometer at an even pace, and the multipoint tab turns checkpoint times from a race or watch into segment paces.
Predicted race times use Peter Riegel's formula, T2 = T1 × (D2 / D1)^1.06, which assumes you're trained for the distance.
Using and checking your result
Published by JustYourCalculator. Check the units and assumptions above, and compare a known example before relying on the output. Calculations use browser arithmetic and may round displayed values.
This tool provides an estimate, not a diagnosis, treatment plan or individualized medical advice. Population formulas may not fit children, pregnancy, athletes or people with health conditions. Discuss health decisions with a qualified clinician.
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