Running Pace Calculator 🏃
Calculate Pace, Time, or Distance for your runs and races. Enter any two values to find the third.
Formula and Conversion
The pace calculation is based on the simple relationship between Distance, Time, and Pace (which is Time per Distance):
Core Equations
$$ \text{Pace} = \frac{\text{Time}}{\text{Distance}} $$
$$ \text{Distance} = \frac{\text{Time}}{\text{Pace}} $$
$$ \text{Time} = \text{Pace} \times \text{Distance} $$
All time inputs are first converted to total minutes (including decimal seconds) for calculation, and then converted back to the h:min:sec format for display.
Unit Conversion Note
The calculation is seamlessly handled in the selected unit. When switching units, the constant factor for mile/km conversion (1 mile ≈ 1.60934 km) is applied to the final result for speed display.