Pace calculator

Put in how far you went and how long it took. You get your pace per mile and per kilometre, and your speed, so you can compare runs fairly.

Your details

Your pace

6:00

minutes per kilometre

Per mile9:39
Speed6.2 mph (10.0 km/h)
Distance3.11 miles (5.00 km)
Even splits25% in 7:30, 50% in 15:00, 75% in 22:30
Same fitness over other races1 mile 9:01; 10K 1:02:33; half marathon 2:18:00; marathon 4:47:44
Training paces per km (VDOT 30.8)easy 7:11 to 8:32; tempo 6:16 to 6:34; intervals 5:40 to 5:54
Age gradeadd your age and sex to see it

Pace is just time divided by distance. Hills, wind, heat and a busy path all slow it down, so compare like with like.

The working

Time divided by distance

Pace is the time divided by the distance. 5 km in 30 minutes is 30 ÷ 5 = 6:00 per kilometre. A mile is 1.609 km, so that is 6:00 × 1.609 = 9:39 per mile, or 6.2 mph.

Reading it

Pace and speed are two views of one thing

Runners talk in pace (minutes per mile or km). Cyclists and treadmills talk in speed (mph or km/h). 10 km/h is a 6:00 kilometre; 6 mph is a 10:00 mile.

Pace per mile	Per km	Speed
12:00	7:27	5.0 mph
10:00	6:13	6.0 mph
9:00	5:36	6.7 mph
8:00	4:58	7.5 mph

Fair comparisons

Why one run is slower than another

Hills and wind can add 20 to 40 seconds a mile
Heat slows almost everyone; it is not a fitness loss
GPS can be out by a few per cent under trees and tall buildings
Easy days should feel easy, whatever the watch says

Beyond pace

What the run says about your fitness

For runs from 1.5 km to a marathon we add even splits, the same fitness over other race distances (Riegel), Daniels VDOT training paces and, with your age and sex, a WMA age grade. A woman of 45 running 5 km in 30:00 has a VDOT of about 30.8, easy runs at 7:11 to 8:32 a km and an age grade of about 52%, the club runner range. A park run on a hilly or busy course counts as a slower course, so compare like with like.

Read with care

What this cannot tell you

EffortPace does not show how hard it felt; heart rate and breathing do.
Fitness changesOne slow run tells you nothing; look at weeks.
InjuryPain that changes how you move is a reason to stop.

Questions

Common questions

What is a good running pace?

Whatever lets you keep going and enjoy it. Many new runners start around 11 to 13 minutes a mile.

How do I convert pace per mile to per km?

Divide the pace per mile by 1.609. A 9:39 mile is a 6:00 kilometre.

Is 6 mph a fast run?

It is a 10 minute mile: a steady, comfortable pace for many club runners.

Sources

Last checked 21 October 2026. Spotted something wrong? Tell us and we will fix it.

Before you push on

New to exercise, or got a heart, lung or joint condition? Have a word with your GP or practice nurse first. Stop and get help if you feel chest pain, faintness or unusual breathlessness, and call 999 if it is severe.