PaceCalc
Calculate pace

Exact 42,195 metres

Marathon pace calculator

The marathon preset uses exactly 42,195 metres and calculates the steady arithmetic pace required for the finish time you enter.

Browser-only calculator

Distance, time, and pace

Calculated on this page

What should PaceCalc calculate?

Distance

Metric distances accept up to six decimals; miles accept up to three.

Elapsed time

Use whole hours, minutes, and seconds. Minutes and seconds must stay below 60.

Split table unit

Rows are cumulative at each whole kilometre or mile, plus the exact finish.

PaceCalc performs steady-pace arithmetic only. It does not predict race performance, prescribe training, or adjust for terrain, weather, fatigue, or health.