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Free pace calculator for running, walking, and biking: solve for pace, finish time, or distance. Convert min/mile ↔ min/km, mph, and km/h. Presets for 5K, 10K, half marathon, and marathon.
Last updated: May 25, 2026
Training for 42.195 km? Marathon pace calculator
Pace
10:05 per km
Also: 10:05/km · 16:13/mi · 5.95 km/h · 3.70 mph
Pace ≈ 10:05/km (16:13/mi, 5.95 km/h, 3.70 mph) for 00:50:25 over 5 Kilometers.
10:05
16:13
5.95 km/h · 3.70 mph
05:00/km
25:00 for 5 km
Pace = Time ÷ Distance
Time = Pace × Distance
Distance = Time ÷ Pace
Use consistent units (e.g. seconds per meter internally, then display min/km or min/mi). Negative splits, walk breaks, and terrain change realized pace even when average math is correct.
| Pace | 5K | 10K | Half marathon | Marathon |
|---|---|---|---|---|
| 4:30 / km | 22:30 | 45:00 | 01:34:56 | 03:09:52 |
| 5:00 / km | 25:00 | 50:00 | 01:45:29 | 03:30:58 |
| 5:30 / km | 27:30 | 55:00 | 01:56:02 | 03:52:04 |
| 6:00 / km | 30:00 | 01:00:00 | 02:06:35 | 04:13:10 |
| 7:00 / km | 35:00 | 01:10:00 | 02:27:40 | 04:55:21 |
Half marathon = 21.0975 km · Marathon = 42.195 km (certified). 4:00 marathon ≈ 5:41/km (9:09/mi).
Pace: 10:05 — 10:05/km · 16:13/mi
Pace ≈ 10:05/km (16:13/mi, 5.95 km/h, 3.70 mph) for 00:50:25 over 5 Kilometers.
Pace: 05:00 — 05:00/km · 08:02/mi
Pace ≈ 05:00/km (08:02/mi, 12.00 km/h, 7.46 mph) for 00:25:00 over 5 Kilometers.
Time: 50:00 (05:00/km)
Finish time ≈ 50:00 at 05:00 (tpk) over 10 Kilometers — avg 05:00/km.
Time: 03:59:54 (05:41/km)
Finish time ≈ 03:59:54 at 09:09 (tpm) over 42.195 Kilometers — avg 05:41/km.
Pace: 16:00 — 09:56/km · 16:00/mi
Pace ≈ 09:56/km (16:00/mi, 6.04 km/h, 3.75 mph) for 00:48:00 over 3 Miles.
Distance: 3.75 Miles
Distance ≈ 3.75 Miles in 00:30:00 at 08:00 (08:00/mi, 04:58/km).
Elite race averages — not targets for most runners. Use for scale when setting goals.
| Event | Men (approx.) | Women (approx.) |
|---|---|---|
| 5K | ~4:04/mi · 2:31/km | ~4:34/mi · 2:50/km |
| 10K | ~4:14/mi · 2:38/km | ~4:45/mi · 2:57/km |
| Half marathon | ~4:27/mi · 2:46/km | ~4:58/mi · 3:05/km |
| Marathon | ~4:41/mi · 2:55/km | ~5:10/mi · 3:13/km |
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