Pace Split Calculator

Split times for any race, with even or negative splits.

Runs in your browser — nothing is uploaded
Unit
In the same unit as the distance.
Positive = second half faster.

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Informational estimates only — not medical or training advice.

How to use Pace Split Calculator

  1. Enter your values — the unit for each field is shown next to it.
  2. The result updates instantly as you type.
  3. Copy the results, or change inputs to compare scenarios.