Laply — Running Pace Calculator

Pace it. Race it. Lap it.

Pace×Speed

Pace
: per km
Equals
Speed 12.00 km/h

The Runner's Calculator

Laply is a precision running calculator for athletes and coaches. Plan your goal pace for the marathon, half marathon, 10K, and 5K. Convert pace and speed instantly between min/km, min/mile, km/h, and mph. Dial in your track interval workouts with 200m, 400m, 800m, 1000m, and 1600m presets — or any custom distance.

Mobile-first. No accounts. No ads. Just the numbers, fast.