The one constant behind every pace conversion
Every pace conversion comes down to the exact definition 1 mile = 1.609344 kilometres. Minutes per kilometre is minutes per mile divided by 1.609344; miles per hour is 60 divided by the minutes-per-mile pace; and kilometres per hour is that mph figure multiplied by 1.609344. Because the mile-to-kilometre relationship is an exact definition, these conversions are exact, not approximations.
Pace conversion chart
Each row is a common minutes-per-mile pace with its exact equivalents. Speeds are rounded to two decimals; the per-kilometre pace is rounded to the nearest second.
| Min/mile | Min/km | mph | km/h |
|---|---|---|---|
| 6:00 | 3:44 | 10.00 | 16.09 |
| 7:00 | 4:21 | 8.57 | 13.79 |
| 8:00 | 4:58 | 7.50 | 12.07 |
| 9:00 | 5:36 | 6.67 | 10.73 |
| 10:00 | 6:13 | 6.00 | 9.66 |
| 11:00 | 6:50 | 5.45 | 8.78 |
| 12:00 | 7:27 | 5.00 | 8.05 |
What each pace means for a marathon
A marathon is 42.195 kilometres, or about 26.219 miles. Holding an even pace, a 7:00 min/mile runner finishes in about 3 hours 4 minutes; 8:00 min/mile gives about 3 hours 30 minutes; 9:00 min/mile about 3 hours 56 minutes; and 10:00 min/mile about 4 hours 22 minutes. These assume perfectly even splits, so real finishes vary with terrain, fuelling and fatigue.
| Marathon pace (min/mile) | Even-pace finish time |
|---|---|
| 7:00 | ~3:04 |
| 8:00 | ~3:30 |
| 9:00 | ~3:56 |
| 10:00 | ~4:22 |
Reading treadmill speeds as pace
Treadmills usually display speed in mph or km/h rather than pace. To convert a speed back to minutes per mile, divide 60 by the mph value; to convert km/h to minutes per kilometre, divide 60 by the km/h value. For example, a treadmill set to 7.5 mph corresponds to an 8:00 min/mile pace, and 12.07 km/h corresponds to 4:58 per kilometre — the same run expressed three different ways.
よくある質問
How do I convert minutes per mile to minutes per kilometre?
Divide the minutes-per-mile pace by 1.609344. For example, 8:00 min/mile ÷ 1.609344 = 4:58 per kilometre.
What pace is a 3:30 marathon?
An even-paced 3-hour-30-minute marathon is about 8:00 per mile (4:58 per kilometre), a speed of roughly 7.5 mph or 12.07 km/h.
Is the mile-to-kilometre conversion exact?
Yes. One mile is defined as exactly 1.609344 kilometres, so pace and speed conversions between the two systems are exact rather than approximate.
How do I turn a treadmill mph reading into pace?
Divide 60 by the mph value to get minutes per mile. A treadmill at 7.5 mph is an 8:00 min/mile pace.
参考文献
- National Institute of Standards and Technology (NIST) — international mile defined as exactly 1,609.344 metres. https://www.nist.gov/pml/owm
- USA Track & Field — standard race distances including the marathon (42.195 km). https://www.usatf.org/
- International Association of Athletics Federations / World Athletics — marathon distance standard. https://www.worldathletics.org/