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Pace per Mile Calculator

Get your pace per mile and speed instantly.

Result

8:30 /mi
7.06 mph

How it is calculated

Enter the total time as decimal minutes and the distance in miles. The pace is pace = time ÷ distance in minutes per mile. The whole-number part is the minutes and the fraction is turned into seconds, seconds = fraction × 60, rounded to the nearest second and shown as m:ss; if the rounding reaches 60 seconds it rolls over to the next minute. Speed is mph = distance ÷ (time ÷ 60), rounded to two decimals. Both time and distance must be above zero. The time box does not accept hours or a m:ss format, so convert first: 1 h 5 min is 65 and 42 min 30 s is 42.5. Kilometres are not converted; for a 10K, enter 6.214 miles.

Worked example

You ran 5 miles in 42 minutes 30 seconds, which is 42.5 decimal minutes (30 s = 0.5 min). Pace: 42.5 ÷ 5 = 8.5 minutes per mile. The 0.5 is 30 seconds, so the pace is 8:30 /mi. Speed: 5 ÷ (42.5 ÷ 60) = 5 ÷ 0.7083 = 7.06 mph. Holding this pace for a 13.1-mile half marathon would take about 111 minutes.

Try this example →

Common mistakes

  • Typing the time as 42.30 for 42 minutes 30 seconds. The field is decimal minutes, so that means 42.3 minutes (42:18), and the pace reads 8:28 instead of 8:30.
  • Entering hours and minutes in the time box, such as 1.25 for 1 h 25 min. 1.25 means one minute fifteen seconds; type 85.
  • Entering kilometres in the distance field. The pace is per mile, so a 10 km run is 6.21 miles.
  • Reading the pace as a decimal. 8:30 means 8 minutes 30 seconds, not 8.30 minutes.
  • Expecting an even pace. The result is an average over the whole run, so the fastest and slowest miles will be different.

About this calculator

Pace per mile expresses running speed as the time it takes to cover one mile, given in minutes and seconds (min:sec/mile), and is calculated by dividing total run time by total distance in miles. It is the standard unit runners in the US, UK, and other imperial-measurement countries use to plan and evaluate training, since it is more intuitive during a run than raw speed.

Runners, running coaches, and race organizers rely on pace per mile to set training zones (easy, tempo, threshold, interval pace), to pace a race evenly (negative or even splits), and to compare performance across different distances using tools like Riegel's formula for race-time prediction. GPS running watches and apps display live pace per mile as the primary real-time feedback metric during a run.

Divide a run's time by its distance in miles and you get pace per mile in min:sec plus speed in mph, ready to hold against a training plan or race target.

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