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Health & Fitness Calculators

Running Speed Calculator

Convert a treadmill speed into a running pace, or a target pace into the speed to set. Every common format is shown at once.

Pace per km5:27 /km
Pace per mile
8:47 /mi
km/h
11
mph
6.84
m/s
3.056
400 m lap
2:11
Step-by-step working
  1. Convert to metres per second: 3.0556 m/s
  2. Pace per km = 1,000 ÷ 3.0556 = 327.3 s = 5:27

How to use the Running Speed Calculator

  1. Choose what you know: a speed or a pace.
  2. Enter the value. Paces use mm:ss.
  3. Press Calculate.

Formula

km/h = 3.6 × m/s; mph = m/s ÷ 0.44704; pace per km (s) = 1,000 ÷ m/s; pace per mile (s) = 1,609.344 ÷ m/s.

Examples

  • 11 km/h = 5:27 /km = 8:47 /mi.
  • Target 4:30 /km = 13.33 km/h on the treadmill.

Frequently asked questions

Why does treadmill running feel easier?

There is no air resistance and the belt helps leg turnover. Many runners set a 1% incline to compensate.

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