Running Pace Calculator
Calculate running pace per km or mile, speed and projected marathon time from distance and time. Free online pace calculator.
✓ 100% free ✓ No sign up ✓ Runs in your browser — nothing uploaded
Pace per km
5:30
Pace per mile 8:51
Speed 10.91 km/h
Marathon at this pace 3:52 h
How to use Running Pace Calculator
- 1Enter your numbers or dates.
- 2Results update instantly as you type.
- 3Copy the main result with one click.
Questions
Is Running Pace Calculator free?
Yes. Running Pace Calculator is 100% free with no limits, no watermark, no sign up and no email required.
Is my data sent anywhere?
No. Everything is calculated locally in your browser. Nothing you type is sent to or stored on any server.
Does Running Pace Calculator work on my phone?
Yes. Running Pace Calculator works in any modern browser on iPhone, Android, Windows, Mac, Linux and Chromebook. No app or install needed.
Do I need to create an account?
Never. There is no sign up, no login, no email and no paywall. Just open the page and use it.
How accurate is it?
Calculations use standard formulas with full floating-point precision. For medical, legal or financial decisions, please confirm with a professional.