20 mph to km/h
20 mph ≈ 32.19 km/h
20 miles per hour is approximately 32.19 kilometers per hour.
How to convert 20 mph to km/h
Use the formula km/h = mph × 1.609344:
km/h = 20 × 1.609344km/h = 32.18688
So 20 mph = 32.18688 km/h, or about 32.19 km/h rounded.
Rounded values and quick estimate
- Rounded to a whole number: 32 km/h
- Rounded to one decimal place: 32.2 km/h
- Conversion factor: 1 mile per hour = 1.61 kilometers per hour
Quick mental estimate: multiply by 1.6. For 20 mph that gives about 32 km/h — within 1% of the exact answer. Use the exact formula when precision matters.
20 mph in other units
- Kilometers per hour
- 32.19 km/h
- Knots
- 17.38 kn
- Meters per second
- 8.94 m/s
- Feet per second
- 29.33 ft/s
20 mph and nearby values
| Miles per hour | Kilometers per hour |
|---|---|
| 16 mph | 25.75 km/h |
| 17 mph | 27.36 km/h |
| 18 mph | 28.97 km/h |
| 19 mph | 30.58 km/h |
| 20 mph | 32.19 km/h |
| 21 mph | 33.8 km/h |
| 22 mph | 35.41 km/h |
| 23 mph | 37.01 km/h |
| 24 mph | 38.62 km/h |
About miles per hour and kilometers per hour
Miles per hour is the speed unit used on roads in the US and UK.
Kilometers per hour is the road-speed unit used in most of the world. 100 km/h ≈ 62 mph.
Related conversions
Frequently asked questions
What is 20 mph in km/h?
20 miles per hour is about 32.19 kilometers per hour (20 mph ≈ 32.19 km/h).
How do you convert 20 mph to km/h?
Apply km/h = mph × 1.609344: km/h = 20 × 1.609344, km/h = 32.18688.
How many miles per hour is 32.19 km/h?
32.19 km/h is about 20 miles per hour.