How to Calculate Your Running Pace (and Actually Use It)

Pace is the single number runners live by. It tells you how hard you're working, whether you're on track for a goal time, and how to hold back early in a race so you don't blow up late. The good news: calculating it takes nothing more than your distance and your time.

The pace formula

Running pace is time divided by distance — usually expressed as minutes per kilometre or minutes per mile:

• Pace = total time ÷ distance

For example, if you run 5 km in 25 minutes, your pace is 25 ÷ 5 = 5:00 per km. Run 10 km in 50 minutes and it's 50 ÷ 10 = 5:00 per km again. The tricky part is only the minutes-and-seconds arithmetic, which is exactly what the pace calculator handles for you.

Pace versus speed

Pace and speed are two ways of saying the same thing. Speed (in km/h or mph) is distance over time; pace is time over distance — the inverse. A pace of 5:00 /km is the same as a speed of 12 km/h. Treadmills usually show speed, so converting between the two is a common need; the treadmill pace converter does it in one step.

Turn your pace into race splits

Once you know your goal pace, the next question is what each kilometre or mile should read on your watch. Those are your splits. Running even splits — the same pace for every segment — is one of the most reliable ways to hit a target time without fading. Plug a goal time and distance into the splits calculator to get the exact splits to aim for.

Turn your pace into training zones

Not every run should be at race pace. Most of your weekly mileage should be genuinely easy, with smaller doses of threshold, interval and repetition work. Each of those has its own pace range, anchored to your current fitness. The training pace zones calculator turns a single threshold pace into all five zones so you know how fast — and how slow — to run.

Common pace reference points

To build intuition, here are a few round-number finishes and their paces:

• 5 km in 30:00 → 6:00 /km
• 10 km in 50:00 → 5:00 /km
• Half marathon in 2:00:00 → about 5:41 /km
• Marathon in 4:00:00 → about 5:41 /km

Put it to work

Start with the pace calculator to find your current pace from a recent run, then use the splits and training-zone tools to plan both your next race and the everyday running that gets you there.