Running pace calculator
Calculate your pace (min/km) and average speed from the run distance and time.
How the calculation works
Pace is the time per kilometer: pace = total time ÷ distance. A 6:00 min/km pace means 6 minutes per kilometer.
Examples
- 10 km in 55 min: pace of 5:30 min/km.
- A 6:00 min/km pace = 10 km/h.
Frequently asked questions
What pace for 5 km in 30 min?
6:00 min/km — exactly 6 minutes per kilometer.
How to convert pace to speed (km/h)?
Divide 60 by the pace in minutes. A 5:00 min/km pace = 60 ÷ 5 = 12 km/h.
What pace do I need for a race goal?
Divide the target time by the distance. For a half marathon (21.1 km) in 2h: 120 ÷ 21.1 ≈ 5:41 min/km.
What pace do I need for a 4-hour marathon?
5:41 min/km for the full 42.195 km. A 3:30 finish needs 4:59 and a 3-hour finish 4:16.
How do I convert pace to km/h?
Divide 60 by the pace in minutes: 5:00 min/km is 12 km/h. Pace is the inverse of speed — lower is faster.
Should I always run at the same pace?
No. A balanced plan mixes easy running (most of the volume), race pace, intervals and a relaxed long run.
Why is my pace worse in the heat?
Because blood flow is diverted to the skin for cooling. Losing 20–40 seconds per kilometre on a hot humid day is normal.
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Updated on June 18, 2026 · by Rafael Rossi · Methodology & sources