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Running Pace Calculator

Calculate running pace, finish time, or the pace needed to hit a target time.

Pace per km

5m 00s

Related Guide

Running Pace Calculator: Plan Your Race Strategy with Splits

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About This Tool

Free running pace calculator online — calculate your pace per kilometer or mile from a distance and time, estimate your finish time for a race distance at a given pace, or find the pace you need to hit a target finish time. No sign-up, no upload, entirely browser-based. Runners training for a 5K, 10K, half marathon, or marathon use this to plan race strategy, check splits against a goal time, and convert between minutes-per-mile and minutes-per-kilometer pacing.

How to Use

  1. 1

    Choose what to calculate

    Select Pace (from distance + time), Finish Time (from distance + pace), or Target Pace (from distance + target time).

  2. 2

    Enter your known values

    Input distance, time, or pace depending on your selection, in km or miles.

  3. 3

    Read the result

    See your pace per km/mile, estimated finish time, or required pace instantly.

Frequently Asked Questions

How do I convert pace between miles and kilometers?+
Multiply a minutes-per-mile pace by 0.621 to get minutes-per-kilometer, or divide a minutes-per-kilometer pace by 0.621 to get minutes-per-mile. This calculator handles the conversion automatically.
What pace do I need for a sub-4-hour marathon?+
A marathon is 42.195 km (26.2 miles). To finish in under 4 hours, you need a pace faster than roughly 5:41 per km or 9:09 per mile — enter your target time and the marathon distance to get the exact pace.
Does this account for elevation or terrain?+
No — this calculates pure time/distance/pace relationships. Elevation gain, terrain, and weather will affect your actual performance relative to a flat-course pace calculation.

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