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Card No. 06·23893 · Updated · Standard formula, shown below

Average pace 5.00 min/km
Average speed
12.00 km/h
Result
Finish time
50 min
You entered
Distance
10 km
You entered
You enter
Finish time, Distance
You get
Average pace, Average speed
Rounding
2 dp

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Formula

The calculator works out your average pace and speed for a run or ride. You enter the total time in minutes and the distance in kilometers. The pace is the time divided by the distance, giving you minutes per kilometer. The speed is the distance divided by the time in hours, giving you kilometers per hour.

In symbols:

  • Pace = t / d (min/km)
  • Speed = d / (t / 60) (km/h)

Where:

  • t = total time in minutes
  • d = distance in kilometers

Worked Example

Using the default values from the calculator: you finish a 10 km run in 50 minutes.

  1. Pace = 50 / 10 = 5.00 min/km
  2. Speed = 10 / (50 / 60) = 10 / 0.8333 = 12.00 km/h

The calculator shows a pace of 5.00 min/km and a speed of 12.00 km/h.

Why Use a Pace Calculator?

Knowing your pace helps you plan training, set realistic goals, and measure improvement. If you are training for a race, you can use your pace to estimate finish times for different distances. For example, a 5:00 min/km pace means a 5 km run takes 25 minutes, and a half marathon (21.1 km) takes about 1 hour 45 minutes.

Pace is also useful for pacing yourself during a long run. Starting too fast is a common mistake; a pace calculator helps you start at the right speed to finish strong.

How to Read the Results

The pace result is the average time per kilometer. Lower numbers mean faster running. The speed result is the average kilometers per hour; higher numbers mean faster running. Both are averages over the whole distance, not your instantaneous speed at any point.

If you run on hilly terrain, your pace will naturally vary. The average pace smooths out those variations, giving you a single number to compare runs.

Common Mistakes

  • Mixing units: If you enter distance in miles but the calculator expects kilometers, your pace will be wrong. Convert miles to kilometers by multiplying by 1.60934.
  • Using seconds in the time field: The calculator expects minutes only. If your run took 50 minutes and 30 seconds, enter 50.5 minutes, not 50:30.
  • Rounding too early: Keep extra decimal places during intermediate steps. Round only the final answer to two decimals.

Limitations of the Formula

This formula gives an average pace, which assumes you ran at a perfectly steady speed. Real runs include stops, hills, and changes in effort. The formula also does not account for factors like wind, temperature, or fatigue.

For treadmill runs, the distance is usually shown in miles or kilometers, so you can use the same formula. For swimming or cycling, you can use the same calculation with distance in meters or miles, just keep the units consistent.

When to Use a Pace Calculator

Use it before a race to set a target pace, during training to check if you are on track, or after a run to log your performance. It is also handy for planning intervals: if you want to run 400 meters at a 5:00 min/km pace, that is 2 minutes per lap.

For a quick reference, many running apps show pace in real time, but a calculator like this is useful when you only have total time and distance.

Frequently Asked Questions

How do I convert my pace from min/km to min/mile?

Multiply the pace in min/km by 1.60934 to get min/mile. For example, 5:00 min/km is about 8:03 per mile.

What is a good pace for a beginner?

It depends on age, fitness, and gender. A common beginner pace is around 7:00 to 9:00 min/km. Focus on completing the distance comfortably rather than a specific pace.

Can I use this for walking?

Yes, the same formula works for walking. A typical walking pace is 12 to 15 min/km (about 4 to 5 km/h).

How do I calculate my finish time for a race?

Multiply your target pace (min/km) by the race distance in kilometers. For example, a 5:30 min/km pace for a 10 km race gives a finish time of 55 minutes.

Does the calculator work for miles?

Yes, but you must convert miles to kilometers first. Multiply the distance in miles by 1.60934 to get kilometers, then enter that value.

Related

Formula used
in t | Finish time | min | 50 | 0
in d | Distance | km | 10 | 0 | 100000
out pace | Average pace | min/km | t / d | 2
out speed | Average speed | km/h | d / (t / 60) | 2

Each line is one input (in, sel, list) or one result (out: label, unit, formula, decimals). How the calculators work

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.

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