Your Running Pace Calculator
Calculate running pace per mile and kilometre, speed in km/h and mph, and finish times for 5K, 10K, half marathon and marathon.
- Free to use
- No signup
- Nothing to install
- Runs in your browser
Illustration. Open the tool for the real thing.
See it in action
Sample input: Distance = 10; Hours = 0; Minutes = 50; Seconds = 0
What is the Running Pace Calculator?
Pace is how long it takes you to cover a distance, usually shown as minutes per kilometre or minutes per mile. Speed is the same idea inverted — kilometres or miles per hour. This calculator converts between them and predicts your finish times over the classic race distances.
Enter a distance and a time to get your pace and speed, or enter a target pace to see the time it implies. A table then shows your projected finish time for 1 mile, 5K, 10K, half marathon and marathon at that pace, helping you set realistic goals, plan training runs and pace a race evenly from the start.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Per km, per mile, km/h and mph.
5K, 10K, half marathon and marathon times.
Time to pace or pace to time.
Works for walking, running, cycling or swimming.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
How it compares
A plain look at this tool next to the usual alternative.
| This calculator | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
| Where it runs | In your browser tab | On your computer |
Questions people ask
How do I calculate running pace?
Divide your time by the distance, for example 50 minutes / 10 km = 5:00 per km.
What is a good 5K time?
For beginners, 30–35 minutes is common; 20–25 minutes is a strong recreational time.
How do I convert min/km to min/mile?
Multiply by 1.609; the calculator does this for you.
What pace do I need for a 4-hour marathon?
About 5:41 per km or 9:09 per mile.
Can I use it for cycling?
Yes, use the speed output.
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