Running Pace Calculator
Calculate running pace, finish time, or distance. Enter any two of the three to get the third.
How to use this tool
- Enter distance, time — hours, time — minutes and time — seconds in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your pace and the full breakdown beneath it.
Enter your distance and total time to calculate pace (minutes per km) and average speed (km/h). Useful for training plans and race planning.
Formula
Pace (min/km) = Total time (min) ÷ Distance (km)
Speed (km/h) = Distance (km) ÷ Total time (h)
where Total time (min) = hours × 60 + minutes + seconds ÷ 60
How it works
This calculator converts a running time and distance into pace (minutes per kilometre) and speed (kilometres per hour) using straightforward division. Total elapsed time is first converted to decimal minutes, then divided by distance to obtain pace; the inverse gives speed in km/h.
Pace and speed are mathematically equivalent expressions of the same motion: pace = 60 ÷ speed (km/h). The tool assumes constant effort across the entire distance; split-based analysis would require data from a GPS watch or similar device.
Worked example
- Input: distance = 10 km, time = 0 h 60 min 0 sec.
- Total seconds: 0 × 3600 + 60 × 60 + 0 = 3600 sec; total minutes: 3600 ÷ 60 = 60 min.
- Pace: 60 min ÷ 10 km = 6.0 min/km.
- Speed: 10 km ÷ (3600 sec ÷ 3600) = 10 km ÷ 1 h = 10.0 km/h.
Pace: 6.0 min/km; speed: 10.0 km/h
Common mistakes to avoid
- Entering total time as a decimal (e.g., 1.5 h) instead of hours, minutes, and seconds separately, producing a wildly wrong pace.
- Confusing km pace with mile pace — a 5:00 min/km is about 8:03 min/mile, so mixing units inflates or deflates training targets.
- Forgetting that GPS distance is often 1-3% short on winding courses, making calculated pace appear faster than actual effort.
Key terms
- Pace
- The time taken to cover one kilometre (or mile); expressed as min/km, where a lower number means faster running.
- Speed
- Distance covered per unit of time; in running, usually expressed in km/h or mph.
- Negative split
- Running the second half of a race faster than the first; considered an efficient pacing strategy.
- Threshold pace
- The pace at which lactate begins to accumulate in the blood faster than it can be cleared; roughly the pace sustainable for about an hour.
Frequently asked questions
- What is a good running pace?
- For recreational runners, 5–8 min/km is typical. Elite marathon runners run at about 2:50–3:00 min/km. Beginners often start around 8–10 min/km.
- How do I convert pace to speed?
- Speed (km/h) = 60 ÷ pace (min/km). For example, a pace of 6 min/km = 10 km/h.