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Pace ↔ distance ↔ time for runners and cyclists.
Distance
10.00 km
Pace per km
5:00
Time
50:00
5K
25:00
10K
50:00
Half marathon
1:45:29
Marathon
3:30:58
Calculate pace, distance, or time for running, cycling, and walking. Enter any two of pace, distance, time — get the third. Supports km and miles, with finish-time predictions at common race distances (5K, 10K, half, full marathon).
This tool allows runners, walkers, and cyclists to instantly calculate missing variables between pace, distance, and time without manual math. It supports both kilometers and miles while automatically generating finish-time predictions for standard race distances like 5K, 10K, half marathons, and full marathons. As a free browser-based utility, it delivers quick results with no software installation or user registration required.
Good to know: This tool is designed for straightforward mathematical conversions and does not track historical fitness data, GPS routes, or training logs over time.
Calculate your exact running pace, total time, or race distance by entering any two known variables into the calculator.
Select your preferred measurement unit
Choose between kilometers or miles to ensure your pace and distance calculations match your training environment.
Enter two known performance values
Input any two variables from pace, distance, or time. The tool will automatically calculate the missing third value for you.
Review your calculated splits and results
Check the generated output to see your required pace per unit or the total time needed to complete your goal distance.
Analyze predicted race finish times
View the finish-time predictions for common race distances like 5K, 10K, half marathon, and full marathon based on your pace.
Estimated time: PT1M
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