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Pace Converter
Convert running pace between min/km, min/mile, km/h and mph.
A treadmill shows speed in km/h or mph. Your training plan is written in minutes per kilometre or per mile. Race results get posted both ways depending on the country. Runners end up doing this conversion in their heads mid-run more often than almost anyone else who works with units.
Pace and speed are inverses of each other
Speed tells you distance covered per unit of time; pace tells you time taken per unit of distance. They describe exactly the same effort, just flipped, which is why converting between them involves dividing 60 by the number rather than simple multiplication. A pace of 5 minutes per kilometre means covering 60 ÷ 5 = 12 kilometres in an hour, a speed of 12 km/h.
The mile-versus-kilometre split roughly follows the same line as everywhere else imperial and metric disagree: the US trains and races largely in miles, while most of the rest of the world uses kilometres, and any international training app has to support both.
Pace and speed side by side
| Pace (min/km) | Speed (km/h) | Pace (min/mile) | Speed (mph) |
|---|---|---|---|
| 4:00 | 15.0 | 6:26 | 9.3 |
| 5:00 | 12.0 | 8:03 | 7.5 |
| 5:30 | 10.9 | 8:51 | 6.8 |
| 6:00 | 10.0 | 9:39 | 6.2 |
| 7:00 | 8.6 | 11:16 | 5.3 |
Target paces by race distance
- 5K at a 25-minute finish: 5:00 min/km, or roughly 8:03 min/mile.
- 10K at a 50-minute finish: 5:00 min/km, the same pace sustained twice as long.
- Half marathon at a 2-hour finish: about 5:41 min/km, or 9:09 min/mile.
- Full marathon at a 4-hour finish: about 5:41 min/km sustained across 42.2 km — the same pace as the half marathon example, held for twice the distance.
Why even small pace differences compound over a marathon
Fifteen seconds per kilometre feels negligible on a single lap of a track. Held across a full marathon’s 42.2 km, it adds up to over ten and a half minutes of finish time — often the entire gap between hitting a goal time and missing it. That compounding effect is exactly why marathon pacing plans are built in seconds per kilometre or mile rather than rounded to the nearest minute.
Pace conversion questions
How do I convert min/km pace to km/h speed?
Divide 60 by the pace in minutes. A pace of 6:00 min/km is 60 ÷ 6 = 10 km/h. For a pace with seconds, convert it to a decimal first — 5:30 becomes 5.5, giving 60 ÷ 5.5 = 10.9 km/h.
How do I convert a mile pace to a kilometre pace?
Multiply the mile pace by 0.621371, since a kilometre is shorter than a mile. An 8:00 min/mile pace becomes roughly 4:58 min/km. Going the other way, divide the km pace by 0.621371, or equivalently multiply by 1.60934.
What is a good beginner running pace?
There is no universal number, since it depends entirely on fitness level, but many new runners comfortably sustain somewhere between 6:30 and 8:30 min/km (roughly 10:30 to 13:40 min/mile) for a continuous run. Consistency at a sustainable pace matters far more early on than hitting any specific number.
Why do US races use minutes per mile while most other countries use minutes per kilometre?
It follows the same imperial-versus-metric split found in nearly every other measurement context: the US standardised road and track running around miles, while metric countries standardised around kilometres. International marathon majors typically display both.
Does treadmill speed in mph or km/h match outdoor running pace exactly?
Broadly yes for the conversion math, but a treadmill removes wind resistance and lets the belt do some of the work, so many runners find a given treadmill speed feels easier than the equivalent outdoor pace. A small incline, often 1%, is commonly used to compensate.
