Kilometer per hour to Mile per hour Converter
1 kilometer per hour is about 0.6213711922 miles per hour. Convert kilometers per hour (km/h) to miles per hour (mph) below: type a value and the result updates as you type.
km/h to mph calculator
Result
Kilometer per hour to Mile per hour conversion
1 km/h ≈ 0.6213711922 mphone kilometer per hour in miles per hour
1 mph = 1.609344 km/hone mile per hour in kilometers per hour
Kilometer per hour (km/h): Exactly 1000 meters per 3600 seconds.
Mile per hour (mph): One international mile per hour: exactly 0.44704 meters per second.
Source:Kilometer per hour: SI Brochure, 9th edition (BIPM, 2019); Mile per hour: International yard and pound agreement (1959)
How to convert kilometers per hour to miles per hour
To convert kilometers per hour to miles per hour, divide the number of kilometers per hour by 1.609344.
Formula
mph = km/h ÷ 1.609344
Examples
- 5 km/h = 5 ÷ 1.609344 ≈ 3.106855961 mph
- 25 km/h = 25 ÷ 1.609344 ≈ 15.53427981 mph
- 100 km/h = 100 ÷ 1.609344 ≈ 62.13711922 mph
Kilometer per hour to Mile per hour conversion table
| Kilometer per hour (km/h) | Mile per hour (mph) |
|---|---|
| 0.1 km/h | 0.06213711922 mph |
| 0.5 km/h | 0.3106855961 mph |
| 1 km/h | 0.6213711922 mph |
| 2 km/h | 1.242742384 mph |
| 3 km/h | 1.864113577 mph |
| 5 km/h | 3.106855961 mph |
| 10 km/h | 6.213711922 mph |
| 20 km/h | 12.42742384 mph |
| 25 km/h | 15.53427981 mph |
| 50 km/h | 31.06855961 mph |
| 100 km/h | 62.13711922 mph |
| 250 km/h | 155.3427981 mph |
| 500 km/h | 310.6855961 mph |
| 1000 km/h | 621.3711922 mph |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many miles per hour are in one kilometer per hour?
- One kilometer per hour is about 0.6213711922 miles per hour.
- How do I convert miles per hour to kilometers per hour?
- To convert miles per hour to kilometers per hour, multiply the number of miles per hour by 1.609344. The formula is km/h = mph × 1.609344.
- Is this conversion exact?
- Yes. Both units have exact definitions and the factor 1.609344 is exact. Displayed results are only rounded when they have many decimal places.
- Which is larger, a kilometer per hour or a mile per hour?
- A mile per hour is 1.609344 times larger than a kilometer per hour. In other words, a kilometer per hour is about 0.6213711922 of a mile per hour.