A worked example
10 km in 50:00 is 5:00 per km, about 8:03 per mile and 12 km/h.
Pace calculator
Enter distance and elapsed time to calculate pace per kilometre, pace per mile and average speed.
YOUR LITTLE WORKBENCH
Pace calculator
Start with the example, then make it your own. Results update as you type.
How this is calculated
Pace (seconds/km) = elapsed seconds ÷ distance in km. Speed (km/h) = distance ÷ hours.
YOUR PLAN / LIVE RESULT
Average pace
5:00 /km- Pace per mile
- 8:03 /mi
- Average speed
- 12 km/h
- Average speed
- 7.4565 mph
- Elapsed time
- 50:00
- Distance
- 10 km
Enter elapsed time including stops if you want an elapsed average. Choose moving time only when that is the metric you intend to calculate.
THE METHOD / 01
Know what goesinto your result.
Pace (seconds/km) = elapsed seconds ÷ distance in km. Speed (km/h) = distance ÷ hours.
Keep the assumptions clear
Enter elapsed time including stops if you want an elapsed average. Choose moving time only when that is the metric you intend to calculate.
A FEW USEFUL ANSWERS
Good to know.
Are my inputs uploaded?
No. Calculations run locally in your browser. The host still receives normal requests for website pages and assets.
Can I keep my result?
Export a CSV, or use Print / PDF and choose Save as PDF in your browser. Inputs are not saved between visits.
Do I need an account?
No sign-up, paid API or subscription is required. Both language versions use the same calculation logic.
STRIDEKIND / TOOLKIT
A little help for every step.
02
Finish time
Estimate elapsed time from a constant pace and distance. Includes 5K, 10K, half-marathon and marathon presets.
Open tool03
Race splits
Create an even-pace split card for a target finish time, including the final partial kilometre or mile.
Open tool04
Speed converter
Convert km/h or mph to running pace and calculate a constant-speed 400-metre lap time.
Open tool