Running Splits Calculator

Per-Kilometer Splits

Race Distance

Target Time – Hours

Target Time – Minutes

Target Time – Seconds

Per-Mile Splits

Race Distance

Target Time – Hours

Target Time – Minutes

Target Time – Seconds

Formula

Pace per unit = Total Time / Distance. Each split = Pace × split number.

Frequently Asked Questions

How do I calculate running splits?

Divide your target finish time by the race distance to get your per-unit pace, then accumulate that pace at each split point to get cumulative split times.

Should I run even splits or negative splits?

Even splits (consistent pace throughout) are recommended for most runners. Negative splits (running the second half faster) can be effective for experienced racers.

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