Free tool
Running pace calculator.
Enter a distance and a finish time. Get your pace per kilometre and per mile, your speed, and a full split table, instantly.
How running pace is calculated
Pace is simply your time divided by the distance you covered. If you run 10 kilometres in 50 minutes, your pace is 50 ÷ 10 = 5:00 per kilometre. To convert to pace per mile, multiply your per-kilometre pace by 1.609. Speed is the inverse: distance divided by time, usually expressed in kilometres or miles per hour.
The number is exact, but it is an average. On a real course your splits rise and fall with hills, wind, and how you feel. The split table above shows the even-pace target for each kilometre or mile: a pacing plan to hold on race day, and a check when you are drifting too fast in the first few kilometres.
Target paces for common goals
| Goal | Pace / km | Pace / mile |
|---|---|---|
| Sub-25:00 5K | 4:59 | 8:02 |
| Sub-50:00 10K | 4:59 | 8:02 |
| Sub-2:00 half marathon | 5:41 | 9:09 |
| Sub-4:00 marathon | 5:41 | 9:09 |
Want the training paces that get you there (easy, tempo, threshold, and interval) from a recent race? Use the training pace calculator.
Frequently asked
How do I calculate my running pace?
Divide your total time by the distance you covered. For example, 50 minutes for 10 km is 5:00 per kilometre (50 divided by 10). This calculator does it instantly and also converts to pace per mile and to speed in km/h and mph.
What is a good running pace?
It depends on your fitness, the distance, and the terrain. A common recreational easy pace is 6:00 to 7:30 per kilometre (about 9:40 to 12:05 per mile). Rather than chasing someone else's number, train by your own zones: easy runs should feel conversational, and only your hardest sessions should feel hard.
What pace do I need to run a sub-2-hour half marathon?
A sub-2:00 half marathon (21.1 km) needs an average pace of about 5:41 per kilometre or 9:09 per mile, held for the whole race. Enter 21.1 km and a 1:59:00 finish time above to see the exact splits.
Should I train at my goal race pace?
Only for part of your training. Most of your weekly volume should be easy running to build your aerobic base, with a smaller dose of work at or near race pace as the race approaches. A structured plan periodises this so you peak on race day instead of burning out early. That is what Gritup builds.
How accurate is this pace calculator?
The maths is exact: it is simply time divided by distance. What it cannot know is the course profile, wind, heat, or how you pace the effort on the day. Use it to set a target and to read your splits, then let your training teach your body to hold that effort.
Turn a target into a plan
A pace is a goal. A plan gets you there.
Gritup turns your goal pace into a periodised, week-by-week training plan that adapts when life gets in the way. Run, bike, swim, or all three.