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Formula

The calculator works out your average pace and speed from a finish time and distance. The formulas are:

• Pace (min/km) = finish time (minutes) ÷ distance (km)
• Speed (km/h) = distance (km) ÷ (finish time in hours)

Where:

• t = finish time in minutes
• d = distance in kilometers
• Pace is expressed as minutes per kilometer (min/km)
• Speed is expressed as kilometers per hour (km/h)

Worked Example

Using the default values: finish time = 50 minutes, distance = 10 km.

Pace = 50 ÷ 10 = 5.00 min/km

Speed = 10 ÷ (50 ÷ 60) = 10 ÷ 0.8333 = 12.00 km/h

So the average pace is 5:00 per kilometer, and the average speed is 12 km/h.

When to Use This Calculator

Use this calculator when you have a race result or training run and want to know your average pace or speed. It’s handy for:

• Planning a race pace for a target finish time
• Comparing training runs over different distances
• Converting between pace and speed for treadmill settings
• Checking if you’re on track for a goal time during a run

The calculator works for any distance and time, whether you run, walk, cycle, or swim. Just enter the total time and distance, and you’ll get the average pace and speed.

How to Read the Result

The first output is your average pace in minutes per kilometer. A lower pace number means you’re faster (e.g., 4:30 min/km is faster than 6:00 min/km). The second output is speed in km/h—a higher number means faster. For US users, you can convert: 1 mile = 1.609 km, so a pace of 6:00 min/km is about 9:39 per mile. Speed in mph is approximately km/h ÷ 1.609.

Common Mistakes

• Mixing units: If you enter distance in miles but the formula expects kilometers, your pace will be wrong. Convert miles to km first (multiply by 1.609).
• Using seconds instead of minutes: The formula uses minutes. If your finish time is 1 hour 30 minutes, enter 90, not 1.30.
• Rounding too early: Round only the final answer, not intermediate steps. For example, 50 ÷ 10 = 5.00 exactly, but for other times, keep more decimals until the end.
• Confusing pace and speed: Pace is time per distance, speed is distance per time. A high speed means a low pace number.

Limitations of the Formula

This formula gives the average pace and speed, not the instantaneous values. If you run hills or intervals, your actual pace varies. Also, the formula assumes a constant speed; it doesn’t account for stops or changes in effort. For most training and racing purposes, the average is what matters.

Frequently Asked Questions

How do I convert my pace to miles per minute?
Take your pace in min/km and multiply by 1.609 to get min/mile. For example, 5:00 min/km is 8:03 per mile.

What is a good running pace?
It depends on age, fitness, and distance. A recreational runner might do 6:00–7:00 min/km, while a competitive runner might do 4:00–5:00 min/km. Use this calculator to track your own progress.

Can I use this for walking or cycling?
Yes, the formula works for any activity where you know time and distance. For cycling, you might prefer speed in km/h, which is also given.

Why does the calculator show pace in min/km instead of min/mile?
The default uses kilometers, but you can enter distance in miles if you convert to km first. Or you can mentally convert the result using the factor above.

How do I find my target pace for a race?
Decide on a goal finish time, enter that time and the race distance, and the calculator will show the pace you need to hold. For example, a 10 km race in 50 minutes requires a 5:00 min/km pace.

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in t | Finish time | min | 50 | 0
in d | Distance | km | 10 | 0
out pace | Average pace | min/km | t / d | 2
out speed | Average speed | km/h | d / (t / 60) | 2