How to use this calculator
Pace is displayed per selected distance unit. In time mode enter pace as decimal minutes: 6.5 means 6 minutes 30 seconds.
- Enter find, distance unit, race distance and review the remaining options.
- Select Calculate or change a value to update the result. Read the result label and units before copying.
- Use Reset to restore the worked starting values.
Formula and method
Assumes constant average pace over the entire distance.
Worked example
5 km in 30 minutes is 6:00 per km and 10 km/h.
Questions about running pace calculator
What pace gives a 30-minute 5K?
Divide 30 minutes by 5 kilometers to get 6:00 per kilometer, equivalent to 10 km/h. Pace mode computes time per distance; time mode multiplies a target pace by distance. The model assumes a constant average pace.
What assumptions should I check?
Assumes constant average pace over the entire distance.
Are my inputs saved?
Calculations run in your browser. We store only tool IDs for favorites and recent tools. Sharing inputs in links is disabled for this category.
Health tools provide general estimates, not diagnoses or personal medical advice. BMI offers a labeled CDC child/teen reference; adult screening bands must not be applied to children. Discuss health and exercise decisions with a qualified professional. Read the tool-specific sources below for background on the method.