80 km/h to mph
80 km/h ≈ 49.71 mph
80 kilometers per hour is approximately 49.71 miles per hour.
How to convert 80 km/h to mph
Use the formula mph = km/h ÷ 1.609344:
mph = 80 ÷ 1.609344mph = 49.709695
So 80 km/h = 49.709695 mph, or about 49.71 mph rounded.
Rounded values and quick estimate
- Rounded to a whole number: 50 mph
- Rounded to one decimal place: 49.7 mph
- Conversion factor: 1 kilometer per hour = 0.6214 miles per hour
Quick mental estimate: multiply by 0.6. For 80 km/h that gives about 48 mph — off by 1.71 mph (3.4%). Use the exact formula when precision matters.
80 km/h in other units
- Miles per hour
- 49.71 mph
- Knots
- 43.2 kn
- Meters per second
- 22.22 m/s
- Feet per second
- 72.91 ft/s
80 km/h and nearby values
| Kilometers per hour | Miles per hour |
|---|---|
| 76 km/h | 47.22 mph |
| 77 km/h | 47.85 mph |
| 78 km/h | 48.47 mph |
| 79 km/h | 49.09 mph |
| 80 km/h | 49.71 mph |
| 81 km/h | 50.33 mph |
| 82 km/h | 50.95 mph |
| 83 km/h | 51.57 mph |
| 84 km/h | 52.2 mph |
About kilometers per hour and miles per hour
Kilometers per hour is the road-speed unit used in most of the world. 100 km/h ≈ 62 mph.
Miles per hour is the speed unit used on roads in the US and UK.
Related conversions
Frequently asked questions
What is 80 km/h in mph?
80 kilometers per hour is about 49.71 miles per hour (80 km/h ≈ 49.71 mph).
How do you convert 80 km/h to mph?
Apply mph = km/h ÷ 1.609344: mph = 80 ÷ 1.609344, mph = 49.709695.
How many kilometers per hour is 49.71 mph?
49.71 mph is about 80 kilometers per hour.