Running Pace Calculator: min/km to min/mile Conversion
Pace and speed are two sides of the same coin — one tells you how long each kilometer takes, the other how many you cover each hour. This guide explains the conversions, provides a complete pace table, and shows how to project race finish times for any distance.
Understanding Pace vs. Speed
Pace measures the time it takes to cover one unit of distance — expressed as minutes per kilometer (min/km) or minutes per mile (min/mile). It is the inverse of speed. A faster runner has a lower pace number and a higher speed number.
Since 1 mile = 1.60934 km, a pace of 5:00 min/km is the same effort as 8:03 min/mile. GPS watches let you switch between these units, but many international races display km markers while US races use miles — so knowing how to convert is essential.
Pace to Speed Conversion
To convert pace (min/km) to speed (km/h), divide 60 by your pace. For example, a 5:00 min/km pace equals 60 ÷ 5 = 12.0 km/h. To go from km/h back to pace: divide 60 by km/h. This is useful when comparing treadmill settings (which display speed) to your outdoor pace data.
Common Race Distances
- 5K — 5.000 km / 3.107 miles
- 10K — 10.000 km / 6.214 miles
- Half marathon — 21.097 km / 13.109 miles
- Marathon — 42.195 km / 26.219 miles
Key Formulas
- min/mile = min/km × 1.60934
- min/km = min/mile ÷ 1.60934
- speed (km/h) = 60 ÷ pace (min/km)
- Finish time = Pace (min/km) × Distance (km)
Pace Conversion & Race Finish Time Table
| min/km | min/mile | km/h | 5K | 10K | Half | Marathon |
|---|---|---|---|---|---|---|
| 3:00 | 4:50 | 20.0 | 15:00 | 30:00 | 1:03:17 | 2:06:35 |
| 3:30 | 5:38 | 17.1 | 17:30 | 35:00 | 1:13:50 | 2:27:41 |
| 4:00 | 6:26 | 15.0 | 20:00 | 40:00 | 1:24:23 | 2:48:47 |
| 4:30 | 7:15 | 13.3 | 22:30 | 45:00 | 1:34:56 | 3:09:53 |
| 5:00 | 8:03 | 12.0 | 25:00 | 50:00 | 1:45:29 | 3:30:59 |
| 5:30 | 8:51 | 10.9 | 27:30 | 55:00 | 1:56:02 | 3:52:04 |
| 6:00 | 9:39 | 10.0 | 30:00 | 1:00:00 | 2:06:35 | 4:13:10 |
| 6:30 | 10:28 | 9.2 | 32:30 | 1:05:00 | 2:17:08 | 4:34:16 |
| 7:00 | 11:16 | 8.6 | 35:00 | 1:10:00 | 2:27:41 | 4:55:22 |
| 7:30 | 12:04 | 8.0 | 37:30 | 1:15:00 | 2:38:14 | 5:16:28 |
| 8:00 | 12:52 | 7.5 | 40:00 | 1:20:00 | 2:48:47 | 5:37:34 |
| 8:30 | 13:41 | 7.1 | 42:30 | 1:25:00 | 2:59:19 | 5:58:39 |
Half = 21.097 km (13.109 mi). Marathon = 42.195 km (26.219 mi). Finish times are calculated at constant pace — real performances vary.
Frequently Asked Questions
How do I convert min/km to min/mile?
Multiply your pace in min/km by 1.60934 to get min/mile. For example, a 5:00 min/km pace equals 5:00 × 1.60934 = 8:03 min/mile. To convert the other way, divide your min/mile pace by 1.60934. This factor comes from the fact that 1 mile = 1.60934 kilometers.
What is a good pace for a 5K?
A good 5K pace depends on your fitness level. For beginners, finishing in under 40 minutes (about 8:00 min/km or 12:52 min/mile) is a solid achievement. Recreational runners often target 25–35 minutes (5:00–7:00 min/km). Competitive age-group runners aim for 20–25 minutes (4:00–5:00 min/km). Elite male runners can break 14 minutes (under 2:48 min/km).
How do I calculate marathon finish time from my training pace?
Multiply your goal pace (in min/km) by the marathon distance (42.195 km) to get finish time in minutes, then convert to hours and minutes. For example, at 5:30 min/km: 5.5 × 42.195 = 232 minutes = 3 hours 52 minutes. Many runners also add a buffer of 5–10% to account for fatigue in the final miles.