Faster5K

Running pace calculator

Enter a finish time to see your pace per kilometre, per mile and per 400 m lap. Or leave time blank, enter a pace, and get the finish time instead.

mm:ss or h:mm:ss
mm:ss

How the pace calculator works

Pace is simply time divided by distance. A 25:00 5K is 1,500 seconds over 5 km, so 300 seconds (5:00) per km. A mile is 1.609344 km, so the same run is 8:03 per mile. A 400 m track lap is 0.4 km, so 2:00 per lap.

Going the other way, finish time is pace × distance. At 5:30 per km, a 10K takes 55:00. We round to the nearest second, which is as precise as any GPS watch can usefully be.

For goal-setting from your current 5K, use the 5K goal calculator on the homepage, which also suggests a plan.

FAQ

What is a good 5K pace?

It depends on age, experience and training. Finishing is an achievement; many recreational runners aim for under 30 minutes (9:39/mile, 6:00/km) and then under 25 minutes (8:03/mile, 5:00/km). See the 5K pace chart for every time from 15:00 to 45:00.

Why does my GPS watch show a different pace?

GPS often measures a slightly different distance than the certified course, especially around tall buildings, trees and tight corners. Race results are based on the official distance, so your average watch pace can differ by a few seconds per km.

Can I enter decimal minutes?

Yes. A bare number like 25.5 is read as 25.5 minutes (25:30). Times with colons are read as mm:ss or h:mm:ss.

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