Running pace calculator

Distance and time → pace per km/mile and speed.

Calculated in this browser. Nothing is sent anywhere.

Flat-course math only — elevation, splits, terrain, and fatigue are not modeled. GPS distance is approximate in real runs.

How to use

  1. Enter distance and unit.
  2. Enter the elapsed time.
  3. Read pace per km and per mile.

What it supports

Flat-course arithmetic only — no elevation, split analysis, or terrain adjustment. GPS distance in real runs is approximate.

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