keepcalculator

06 Numbers and Powers

Raspberry Pi 32-Bit Support: What Still Works

Card No. 06·27670 · 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

Yes, current Raspberry Pi models still support 32-bit operating systems, but the official 32-bit Raspberry Pi OS is now in legacy status, and new 64-bit-only software is becoming more common. You can install and run a 32-bit OS on any Raspberry Pi 2 or newer, including the Pi 5, but you should understand the performance, software, and compatibility trade-offs before choosing.

Formula

The calculator works out your average pace and speed for a run, ride, or walk. You enter the finish time in minutes and the distance in kilometers. The first result is the average pace in minutes per kilometer, and the second is the average speed in kilometers per hour.

The formulas are:

  • Pace (min/km) = Finish time (min) ÷ Distance (km)
  • Speed (km/h) = Distance (km) ÷ (Finish time (min) ÷ 60)

Where:

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

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

When to Use This Calculator

Use this calculator when you want to know your average pace for a training run, compare your speed on different routes, or plan your target pace for a race. It works for any distance and time, from a 5K to a marathon, as long as you enter the total time and distance.

For example, if you run 5 km in 30 minutes, your pace is 6.00 min/km and your speed is 10.00 km/h. If you cycle 20 km in 60 minutes, your pace is 3.00 min/km and your speed is 20.00 km/h.

How to Read the Result

The pace result tells you how many minutes it takes to cover one kilometer. A lower pace means faster running. The speed result tells you how many kilometers you cover in one hour. For most runners, pace is the more familiar measure; for cyclists, speed is often more intuitive.

You can also use the pace to estimate finish times for other distances. If your pace is 5.00 min/km, a half marathon (21.1 km) would take about 105.5 minutes, or 1 hour 45 minutes 30 seconds.

Common Mistakes

The most common mistake is mixing units. If you enter distance in miles but the calculator expects kilometers, your pace will be wrong. To convert miles to kilometers, multiply by 1.60934. For example, 5 miles = 8.05 km.

Another mistake is entering time in hours instead of minutes. If you run 1 hour 30 minutes, enter 90, not 1.5. The calculator expects minutes.

Rounding too early can also cause small errors. Keep at least two decimal places during the calculation, then round the final answer as shown.

Limits of the Formula

This formula gives average pace and speed, not a real-time or instantaneous value. It does not account for elevation gain, terrain, stops, or wind. If you run on a hilly course, your average pace will be slower than on a flat course, even if your effort is the same.

The formula also assumes a constant speed. In reality, your pace varies throughout the run. The average is still useful for training and race planning.

Frequently Asked Questions

How do I convert pace to speed?

To convert pace (min/km) to speed (km/h), divide 60 by the pace. For example, a pace of 5 min/km equals 60 ÷ 5 = 12 km/h. Conversely, speed to pace: divide 60 by the speed. A speed of 10 km/h equals 60 ÷ 10 = 6 min/km.

What is a good running pace?

A good pace depends on your fitness, age, and experience. For a recreational runner, 6-7 min/km is common. A competitive runner might do 4-5 min/km. The best way to find your pace is to run a timed distance and use this calculator.

Can I use this for walking or cycling?

Yes, the formula works for any activity where you cover distance over time. For walking, a typical pace is 10-12 min/km. For cycling, speeds are usually 15-30 km/h, so pace in min/km is less common but still calculable.

How do I calculate pace for a marathon?

Enter the marathon distance (42.195 km) and your target finish time in minutes. For a 4-hour marathon, enter 240 minutes. The calculator will give you the average pace you need to hold.

Why does the calculator show two results?

The first result is the average pace (minutes per kilometer), which is the standard measure for runners. The second result is the average speed (kilometers per hour), which is more common for cyclists and drivers. Both are derived from the same inputs.

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.

More cards in this drawer

The whole Numbers and Powers drawer →