Table Of Contents
Miles per hour to kilometers per hour Conversion
1 miles per hour (mi/hr) is equal to 1.609344 kilometers per hour (km/hr).
1 mi/hr = 1.609344 km/hr
or
1 km/hr = 0.6213711922 mi/hr
Formula
To convert a speed from miles per hour (mi/hr) to kilometers per hour (km/hr), multiply the speed in miles per hour by 1.609344
s(km/hr) = s(mi/hr) × 1.609344
Examples:
Convert 50 miles per hour to kilometers per hour:
s(km/hr) = 50mi/hr × 1.609344 = 80.4672 km/hr
Conversion table
| Miles per hour (mi/hr) | Kilometers per hour (km/hr) |
|---|---|
| 1 mi/hr | 1.609344 km/hr |
| 2 mi/hr | 3.218688 km/hr |
| 3 mi/hr | 4.828032 km/hr |
| 5 mi/hr | 8.04672 km/hr |
| 10 mi/hr | 16.09344 km/hr |
| 20 mi/hr | 32.18688 km/hr |
| 25 mi/hr | 40.2336 km/hr |
| 30 mi/hr | 48.28032 km/hr |
| 50 mi/hr | 80.4672 km/hr |
| 60 mi/hr | 96.56064 km/hr |
| 80 mi/hr | 128.74752 km/hr |
| 100 mi/hr | 160.9344 km/hr |
| 120 mi/hr | 193.12128 km/hr |
| 250 mi/hr | 402.336 km/hr |
| 500 mi/hr | 804.672 km/hr |
| Kilometers per hour (km/hr) | Miles per hour (mi/hr) |
|---|---|
| 1 km/hr | 0.621371192 mi/hr |
| 2 km/hr | 1.242742384 mi/hr |
| 3 km/hr | 1.864113577 mi/hr |
| 5 km/hr | 3.106855961 mi/hr |
| 10 km/hr | 6.213711922 mi/hr |
| 20 km/hr | 12.427423845 mi/hr |
| 25 km/hr | 15.534279806 mi/hr |
| 30 km/hr | 18.641135767 mi/hr |
| 50 km/hr | 31.068559612 mi/hr |
| 60 km/hr | 37.282271534 mi/hr |
| 80 km/hr | 49.709695379 mi/hr |
| 100 km/hr | 62.137119224 mi/hr |
| 120 km/hr | 74.564543068 mi/hr |
| 250 km/hr | 155.342798059 mi/hr |
| 500 km/hr | 310.685596119 mi/hr |
Frequently asked questions
How do I convert miles per hour to kilometers per hour?
Multiply the value in miles per hour by 1.609344 to get the result in kilometers per hour. For example, 5 mi/hr × 1.609344 = 8.04672 km/hr.
How many kilometers per hour are in 1 miles per hour?
1 miles per hour (mi/hr) is equal to 1.609344 kilometers per hour (km/hr).
How do I convert kilometers per hour back to miles per hour?
Use the inverse operation: divide the value in kilometers per hour by 1.609344 to get the result in miles per hour.
How accurate is the miles per hour to kilometers per hour conversion?
The converter multiplies by the conversion factor 1.609344 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
