How to use the Pace Calculator
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The formula
Pace = time ÷ distance
Examples
- 5 km in 27 minutes 30 seconds
Pace: 5:30 per km (8:51 per mile) Speed: 10.91 km/h (6.78 mph) Predicted times at this pace:
- 10 km in 50 minutes
Pace: 5:00 per km (8:03 per mile) Speed: 12.00 km/h (7.46 mph) Predicted times at this pace:
- Half marathon (21.0975 km) in 1:50:00
Pace: 5:13 per km (8:23 per mile) Speed: 11.51 km/h (7.15 mph) Predicted times at this pace:
Limitations and assumptions
Assumes an even pace. Race predictions by simple scaling are optimistic for longer distances.
Frequently asked questions
How is pace calculated?
Total time divided by distance.
What is a good 5K time?
It depends on age and training; many recreational runners finish between 25 and 35 minutes.
How do I convert min/km to min/mile?
Multiply by 1.609344.
How do I plan a target pace?
Use the running pace calculator to see a finish time from a given pace.