Convert a pace in minutes per mile to miles per hour, or mph back to minutes per mile, and find average speed from distance and time.
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Calculator Functions
| Function | What it does | What it requires |
|---|---|---|
| Speed from pace | Converts a pace in minutes and seconds per mile or per kilometer to miles per hour | Requires the pace minutes, the pace seconds and the pace distance |
| Pace from speed | Converts a speed to a pace in minutes and seconds per mile | Requires the speed in mph, km/h or miles per minute |
| Average speed | Finds the speed in miles per hour from a distance and the time it took | Requires the distance in miles, kilometers or meters and the elapsed hours, minutes and seconds |
Every result shows the speed in miles per hour, miles per minute, kilometers per hour and meters per second, with the matching pace per mile and per kilometer and the seconds per mile.
Minutes to Miles Per Hour Formula
| mph | Speed in miles per hour |
| M | Minutes taken to cover one mile, with seconds counted as a fraction: 7 min 30 s is 7.5 |
An hour has 60 minutes, so the number of miles covered in an hour is 60 divided by the minutes each mile takes.
Speed from pace
The formula applies directly: an 8 minute mile is 60 ÷ 8 = 7.5 mph, and a 10:30 mile is 60 ÷ 10.5 = 5.71 mph. For a pace per kilometer, the result is also divided by 1.609344, the kilometers in a mile [1]: 5:00 per kilometer is 60 ÷ 5 ÷ 1.609344 = 7.46 mph.
| Pace per mile (min:sec) | mph | km/h |
|---|---|---|
| 4:00 | 15 | 24.14 |
| 5:00 | 12 | 19.31 |
| 6:00 | 10 | 16.09 |
| 6:30 | 9.23 | 14.86 |
| 7:00 | 8.57 | 13.79 |
| 7:30 | 8 | 12.87 |
| 8:00 | 7.5 | 12.07 |
| 8:30 | 7.06 | 11.36 |
| 9:00 | 6.67 | 10.73 |
| 9:30 | 6.32 | 10.16 |
| 10:00 | 6 | 9.66 |
| 10:30 | 5.71 | 9.2 |
| 11:00 | 5.45 | 8.78 |
| 12:00 | 5 | 8.05 |
| 13:00 | 4.62 | 7.43 |
| 14:00 | 4.29 | 6.9 |
| 15:00 | 4 | 6.44 |
| 17:00 | 3.53 | 5.68 |
| 18:00 | 3.33 | 5.36 |
| 20:00 | 3 | 4.83 |
| 24:00 | 2.5 | 4.02 |
Pace from speed
7.5 mph is 60 ÷ 7.5 = 8 minutes per mile. 6.5 mph is 9.23 minutes, shown as 9:14 because the pace is rounded to the nearest second. A speed in km/h is divided by 1.609344 first, so 12 km/h is 7.46 mph, or 8:03 per mile.
Average speed
d is the distance in miles and t is the elapsed time in hours. A 49 mile trip that takes 2 hours 21 minutes averages 49 ÷ 2.35 = 20.85 mph. Walking 2.5 miles in 54 minutes averages 2.5 ÷ 0.9 = 2.78 mph, a pace of 21:36 per mile.
How Many Miles Is 30 Minutes?
Minutes turn into miles only once a speed is known: miles = mph × minutes ÷ 60. Thirty minutes is 1.5 miles at a 3 mph walk, 3 miles at a 6 mph run, 15 miles at 30 mph and 30 miles at 60 mph. To find the speed for a trip already made, use the Average speed function.
| Minutes | At 3 mph (walk) | At 6 mph (run) | At 30 mph | At 60 mph |
|---|---|---|---|---|
| 5 | 0.25 mi | 0.5 mi | 2.5 mi | 5 mi |
| 7 | 0.35 mi | 0.7 mi | 3.5 mi | 7 mi |
| 8 | 0.4 mi | 0.8 mi | 4 mi | 8 mi |
| 10 | 0.5 mi | 1 mi | 5 mi | 10 mi |
| 11 | 0.55 mi | 1.1 mi | 5.5 mi | 11 mi |
| 15 | 0.75 mi | 1.5 mi | 7.5 mi | 15 mi |
| 19 | 0.95 mi | 1.9 mi | 9.5 mi | 19 mi |
| 20 | 1 mi | 2 mi | 10 mi | 20 mi |
| 30 | 1.5 mi | 3 mi | 15 mi | 30 mi |
| 45 | 2.25 mi | 4.5 mi | 22.5 mi | 45 mi |
| 50 | 2.5 mi | 5 mi | 25 mi | 50 mi |
| 60 | 3 mi | 6 mi | 30 mi | 60 mi |
| 90 | 4.5 mi | 9 mi | 45 mi | 90 mi |
Limits of This Estimate
- The result is an average. Speed during a run, walk or drive rises and falls, so the pace at any one moment can differ from the figure shown.
- Pace clocks are rounded to the nearest second, while the mph figure keeps six decimal places. Converting a rounded pace back to speed can differ in the last decimals.
- Stops count. Time spent at lights or resting lowers an average speed unless it is left out of the elapsed time.
Sources
- National Institute of Standards and Technology, Guide for the Use of the International System of Units (SP 811), Appendix B.8: 1.609344 kilometers in a mile and km/h in a mile per hour
