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Formula

The average pace is the total time divided by the distance:

pace = t / d

where t is the finish time in minutes and d is the distance in kilometers. The average speed is the distance divided by the time in hours:

speed = d / (t / 60)

Speed is expressed in kilometers per hour (km/h).

Worked Example

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

1. Calculate the pace: 50 / 10 = 5.00 min/km.
2. Calculate the speed: 10 / (50 / 60) = 10 / 0.8333 = 12.00 km/h.

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

When to Use This Calculator

Use this calculator for any activity where you know the total time and distance: running, cycling, walking, or swimming. It gives the average pace per kilometer (or mile if you convert) and the average speed. This is useful for planning training, comparing performances, or setting realistic goals for a race.

How to Read the Result

The pace tells you how many minutes (and decimals) it takes to cover one kilometer. A lower pace means faster. The speed tells you how many kilometers you cover in one hour. These two numbers are inversely related: a faster pace corresponds to a higher speed. For example, 5 min/km equals 12 km/h, while 6 min/km equals 10 km/h.

Common Mistakes

• Mixing units: If you enter distance in miles but time in minutes, the pace will be in min/mile, not min/km. Convert distance to kilometers first (1 mile = 1.60934 km) or use the result as min/mile.
• Using seconds instead of minutes: If you enter time in seconds, the pace will be in seconds per km, which is not what the calculator expects. Convert to minutes (divide by 60) first.
• Rounding too early: If you round the time or distance before dividing, the pace may be slightly off. Use the full precision of your inputs.

Limits of the Formula

This formula assumes a constant pace throughout the activity. In reality, runners slow down on hills or speed up in the final stretch. The average pace is a useful summary, but it does not reflect variations in effort. For interval training or uneven terrain, consider using a GPS watch or a more detailed analysis.

Frequently Asked Questions

Can I use this for miles?

Yes, but you must convert the distance to kilometers first, or interpret the result as minutes per mile. The formula works with any unit as long as you are consistent. To get min/mile, use distance in miles and time in minutes.

What is a good pace for a beginner?

It depends on age, fitness, and experience. A common starting pace for a 5K is around 8–10 min/km. For a marathon, a 6–7 min/km pace is typical for recreational runners. Always consult a coach or doctor before starting a new training plan.

How do I convert pace to speed?

Speed (km/h) = 60 / pace (min/km). For example, 5 min/km = 60 / 5 = 12 km/h. Conversely, pace = 60 / speed.

Does the calculator account for breaks?

No, it uses total time, including any stops. If you want the moving pace, you need to exclude breaks from the time input. This is common for trail runs or long rides where you stop for traffic lights.

What if I run on a treadmill?

Treadmill distance is usually shown in miles or kilometers. Use the same formula. Treadmills often show speed in mph or km/h, so you can convert directly to pace using the inverse formula.

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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