What’s your pace? This free pace calculator turns a distance and time into your pace per kilometre and per mile, plus speed in km/h and mph — with quick buttons for 5K, 10K, half and marathon.
Your run or walk
h
m
s
Quick distance:
Enter the distance you covered and how long it took. Pace and speed are calculated for both kilometres and miles.
Pace
— /km
Enter distance and time
Pace /km
—
Pace /mile
—
Speed
—
Speed
—
Pace is your time per unit of distance (lower is faster); speed is distance per hour. Tap the unit button to switch the headline pace between km and miles.
Use this free pace calculator to find your running or walking pace from a distance and time. Enter how far you went and how long it took to see your pace per kilometre and per mile, plus your speed.
What this pace calculator shows you
A pace calculator turns a distance and a finishing time into your average pace — the time it takes to cover one kilometre or mile. It also shows your speed in km/h and mph. Pace is the number most runners train and race by.
How pace is calculated
Pace = total time ÷ distance
Speed = distance ÷ time
Run 10 km in 50:00 and your pace is 5:00 per km (about 8:03 per mile), a speed of 12 km/h (7.46 mph). Lower pace numbers mean you’re faster; higher speed means the same.
Common race paces
Race
Distance
Finish at 5:00/km
5K
5 km
25:00
10K
10 km
50:00
Half marathon
21.1 km
1:45:34
Marathon
42.2 km
3:30:58
Pace vs speed: what’s the difference?
Pace is time per distance (e.g. 5:00 per km) — handy for planning even splits. Speed is distance per time (e.g. 12 km/h) — common on treadmills and bikes. They describe the same effort from opposite directions, and this calculator shows both.
How to use the pace calculator
Enter your distance (tap the unit to switch km/mi), or use a quick race button.
Enter your time in hours, minutes and seconds.
Read your pace and speed for both units.
Tips for using pace
Aim for even splits — a steady pace usually beats starting too fast.
Use goal pace in training to rehearse race effort.
Adjust for hills and heat, which slow pace at the same effort.
Pace Calculator FAQ
How do I calculate my running pace?
Divide your total time by the distance. For 10 km in 50 minutes, that's 5:00 per km (about 8:03 per mile). This calculator works it out for both units instantly.
What's the difference between pace and speed?
Pace is time per distance (like 5:00 per km), while speed is distance per time (like 12 km/h). They describe the same effort from opposite directions — the calculator shows both.
How do I convert pace per km to pace per mile?
A mile is about 1.609 km, so pace per mile is your pace per km multiplied by roughly 1.609. For example, 5:00/km is about 8:03/mile. The tool converts automatically.
What's a good running pace?
It varies hugely by person and goal. Many recreational runners land around 6:00–7:00 per km, while a 5:00/km pace would finish a marathon in about 3:31. "Good" is whatever's challenging yet sustainable for you.
Can I use it for walking?
Yes. Enter your walking distance and time and it gives your walking pace and speed just the same — useful for fitness walking or planning routes.
Is the pace calculator free to use?
Yes, this pace calculator is completely free, needs no sign-up, and gives instant results in your browser.
