Support: Pace Calculator

Tell us what happened. Include which page you were on and what you expected to see. Most answers go out within a business day.

Common questions

What pace is a 30-minute 5K?

9:39 per mile, or 6:00 per km. A 5K is 3.107 miles, and 30 minutes divided by that is 9.66 minutes a mile.

What pace do I need for a 4-hour marathon?

9:09 per mile, or 5:41 per km, held for all 26.2 miles.

What pace is a 2-hour half marathon?

Also 9:09 per mile, or 5:41 per km, since a half is exactly half the distance in half the time.

How do I convert pace per km to pace per mile?

Multiply by 1.609. A 6:00 per km pace is 9:39 per mile. Change the Per box and the calculator does it for you.

How long is a marathon in miles?

26.219 miles, which is 42.195 km. A half marathon is 13.109 miles.

Is anything sent anywhere?

No. The sums run in your browser and nothing you type leaves your device.