Running Pace Calculator

Calculate your running pace

The Running Pace Calculator turns a distance and a time into your pace per kilometer and per mile, plus your speed in km/h and mph. Enter your run and the numbers appear instantly. Whether you are reviewing a training session or planning a race, it gives you the figures runners actually use, all in your browser.

What is running pace?

Pace is the time it takes to cover one unit of distance — usually minutes per kilometer or minutes per mile. It is the language runners think in: "I ran a 5:30 pace" means 5 minutes 30 seconds per kilometer. Pace is more useful than raw speed for training because it directly tells you how fast to run each kilometer to hit a goal time.

How to use it

1. Enter the distance and choose kilometers or miles.
2. Enter your time as hours, minutes, and seconds.
3. Read your pace per km, pace per mile, and speed.

Common race paces

Race	Distance
5K	5 km / 3.1 mi
10K	10 km / 6.2 mi
Half marathon	21.1 km / 13.1 mi
Marathon	42.2 km / 26.2 mi

Training with pace

Knowing your pace lets you train with purpose. Easy runs should feel comfortable at a conversational pace; tempo runs sit at a "comfortably hard" pace; and intervals are run faster than race pace. By calculating the pace of past runs, you can set realistic targets and track improvement over weeks and months. Negative splits — running the second half faster than the first — are a sign of well-judged pacing.

Pace, speed, and goal times

• Pace per km/mile — how to run each segment.
• Speed (km/h, mph) — handy for treadmill settings.
• Hold a target pace across the full distance to hit a goal finish time.
• Use recent runs to set achievable race goals.

Private and free

All calculations run in your browser. Nothing is uploaded, and the tool is completely free with no sign-up.