Pace Calculator

Solve for running pace, finish time, or distance, then convert that result into pace per mile, pace per kilometer, and common race projections.

Run Inputs
Choose what you want to calculate, then provide the other two values.
Pace Summary
All results update automatically as you change time, distance, or pace.
Calculated pace
8:03/mile
Pace per kilometer
5:00/km
Pace per mile
8:03/mile
Speed
7.46 mph
12 km/h
Distance covered
3.11 mi
5 km
Total time
25:00
5K projection
25:00
10K projection
50:00
Half marathon projection
1:45:29
Marathon projection
3:30:59
How to use the result
Pace tells you how long it takes to cover one mile or one kilometer.

If your pace is 8:00 per mile, you need eight minutes to cover one mile at that effort level.

That same pace equals about 4:58 per kilometer and about 7.5 miles per hour.

Race projection caveat
These projections assume you can hold the same pace across the whole distance.

That is useful for pacing plans and rough goal setting, but longer races usually slow down if training, fueling, weather, or terrain changes.

Use the projections as a benchmark, then adjust for race-day conditions and your current training base.

Frequently Asked Questions

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