Pace to Speed Converter
Convert running pace (min/mile) to speed (mph) and see race finish times.
By Konstantin Iakovlev · Updated September 2026 · Source: ACE
Speed
7.06 mph
Mile Pace
8:30/mi
Km Pace
5:17/km
Race Finish Times
| 5K | 26:25 |
| 10K | 52:49 |
| Half Marathon | 1:51:26 |
| Marathon | 3:42:52 |
Use the Pace to Speed Converter above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only. Results are estimates based on the information you provide and the assumptions described on this page.
How It Works
Runners usually talk in pace — minutes per mile — but speed in miles per hour (mph) is easier to compare across activities and easier for most people to picture. This converter moves between the two, which helps when you're chasing a specific time, sizing up your effort against other sports, or setting training targets you can actually hold. It's equally useful for plotting race strategy ahead of a marathon or a neighborhood 5K.
Turning pace into speed takes one short step: divide 60, the number of minutes in an hour, by your pace in minutes per mile. A 9-minute mile, for instance, works out to 60 minutes / 9 minutes/mile = 6.67 mph. The results also show the pace per kilometer and the finish time that pace gives over a 5K, 10K, half marathon and marathon.
One thing the number hides is that pace is an average across the whole distance, while your real speed rises and falls as you run. The conversion also assumes flat, still conditions, leaving out elevation, wind resistance, and fatigue, all of which bite into actual performance. Factor those forces back in before you carry a converted speed into a training plan or a race-day prediction.
Example: Target Pace for a Half Marathon
- 1 You want to finish a half marathon (13.1 miles) in 2 hours 15 minutes, which is 135 minutes.
- 2 Required pace: 135 ÷ 13.1 = 10.31 minutes per mile, or about 10:18 per mile.
- 3 Enter 10 minutes and 18 seconds. That is 618 seconds per mile, so the speed is 3,600 ÷ 618 = 5.83 mph, and 618 ÷ 1.60934 = 384 seconds, or 6:24, per kilometer.
- 4 The race table lists a half marathon at 2:15:02 for that pace. The extra two seconds come from rounding the pace down to 10:18 and from the half marathon's exact 21.0975 km (13.11 miles), so hold a touch under 10:18 on race day to bank the goal.
Source: ACE · Last updated: September 2026
Frequently Asked Questions
What is a good mile time for a recreational runner?
How do you convert pace to speed?
What pace do I need to run a sub-4-hour marathon?
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