When you want to know how fast something is going, like your tractor or truck, the speed can be measured in kilometres per hour (km/h) or miles per hour (mph). Since these are different ways of measuring speed, sometimes you need to convert from one to the other.
What is the difference between kilometres and miles?
- 1 kilometre (km) is a little more than half a mile.
- 1 mile is about 1.6 kilometres.
Why convert km/h to mph?
If you see a speed written in kilometres per hour but want to understand it in miles per hour (which is used in some countries), you need to convert it.
How to convert kilometres per hour (km/h) to miles per hour (mph)
The exact conversion factor is:
1 km/h=0.621371 mph
This means, to convert km/h to mph, you multiply the speed in km/h by 0.621371.
Example Calculation
If your tractor is moving at 50 km/h and you want to know how fast that is in mph:
50 km/h×0.621371=31.07 mph
So, 50 km/h equals about 31.07 mph.
Using a Calculator
- Enter the speed in kilometres per hour.
- Multiply that number by 0.621371.
- The result will be the speed in miles per hour.
You can find more agriculture conversion calculators here.