Race Time Calculator
TRAINING & MOVEMENT
Race Time Calculator
See a finish time at your chosen pace.
UNDERSTAND YOUR RESULT
How it works
Calculate how long a distance takes if a chosen pace is maintained throughout. This is a constant-pace calculation.
THE CALCULATIONTime = distance × pace
Using this calculator
Enter distance in kilometres and a pace in minutes and seconds per kilometre. For reference, a half marathon is 21.0975 km and a marathon is 42.195 km.
What to keep in mind
The result does not model terrain, fatigue, weather or stops. It is not a prediction of your performance.
Frequently asked questions
Are my entries saved?
No. Calculator inputs remain in the current page and are cleared when you reload or leave. The tools do not upload your entries.
Why are results rounded?
The display is rounded for readability. Calculations use unrounded intermediate values. An estimate should not be interpreted as an exact measurement.