Free running calculator
Running pace calculator
Calculate running pace per mile and kilometer, speed, finish time, and common split times from distance and duration.
Reviewed February 26, 2026
Per mile
8:03
Per kilometer
5:00
Average speed
12 km/h
Longer finish times simply extend the same average pace; they are not race-performance predictions.
What this result means
Enter distance and finish time to calculate pace per mile, pace per kilometer, average speed, and common splits. Pace is time per unit of distance; speed is distance per unit of time.
Pace = time ÷ distance. Speed = distance ÷ time.
Use average pace as context
Average pace summarizes the full activity. Hills, stops, GPS error, heat, wind, and terrain can make the same pace represent different effort.
For workouts, lap or interval pace may be more informative than the average across warm-up, recovery, and cooldown.
Do not turn easy pace into a test
Easy sessions are usually better governed by effort or conversational breathing than by forcing a number from a calculator.
Use goal pace where the session or event has a pace target, then adjust for conditions and your actual response.
Frequently asked questions
How do I calculate running pace?
Divide total time by distance, using consistent units.
What is the difference between pace and speed?
Pace is time per mile or kilometer. Speed is miles or kilometers per hour.
Should every run match a target pace?
No. Easy, recovery, trail, and heat-affected runs may be better guided by effort.
Sources and assumptions
Keep pace beside the run
Build a running history your coach can use.
LogFast keeps distance, duration, pace, and effort together, then considers those runs alongside your weekly goal and every other activity.
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