Pace Calculator

This pace calculator converts a run distance and time into pace per kilometer or mile, plus average speed.

Formula notes

pace = time / distance (min per km); speed = distance / time (km per hour).

Worked examples

1. Example: 5 km in 30 minutes gives a 6:00 min/km pace and 10 km/h speed — matching the defaults.
2. Finishing 10 km in 52 minutes gives an average pace of 5:12 per km and average speed of about 11.54 km/h.

How to use it

1. Enter the distance and total time.
2. Read pace in minutes per kilometer.
3. Read the average speed for cross-checking.

Frequently asked questions

Limits and interpretation

• Average pace smooths hills, wind, heat, turns, stops, GPS error, and deliberate changes in effort.
• Race distance, measured course line, treadmill calibration, and elapsed versus moving time must match the intended comparison.