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Formula
To convert kilometers per hour to miles per hour, multiply the number by 0.6213711922.
To go the other way, multiply miles per hour by 1.609344.
Example
Example: convert 100 km/h to mph.
100 × 0.6213711922 = 62.1371. So 100 km/h is 62.1371 mph.
Common values
kilometers per hour to miles per hour| km/h | mph |
|---|
| 5 km/h | 3.10686 mph |
|---|
| 10 km/h | 6.21371 mph |
|---|
| 20 km/h | 12.4274 mph |
|---|
| 30 km/h | 18.6411 mph |
|---|
| 40 km/h | 24.8548 mph |
|---|
| 50 km/h | 31.0686 mph |
|---|
| 60 km/h | 37.2823 mph |
|---|
| 70 km/h | 43.496 mph |
|---|
| 80 km/h | 49.7097 mph |
|---|
| 90 km/h | 55.9234 mph |
|---|
| 100 km/h | 62.1371 mph |
|---|
| 110 km/h | 68.3508 mph |
|---|
| 120 km/h | 74.5645 mph |
|---|
| 130 km/h | 80.7783 mph |
|---|
| 140 km/h | 86.992 mph |
|---|
| 150 km/h | 93.2057 mph |
|---|
About km/h and mph
One mile per hour is exactly 1.609344 kilometers per hour. So 1 km/h is about 0.62 mph.
A car in the US shows mph. A car in most other countries shows km/h.
How to use it
- Type your number in the box.
- Check that From is kilometers per hour and To is miles per hour.
- Read the result. It changes as you type.
- Press Swap to convert the other way.
Questions
How many miles per hour are in 1 kilometer per hour?
1 kilometer per hour is 0.6213711922 miles per hour.
How do I convert kilometers per hour to miles per hour?
To convert kilometers per hour to miles per hour, multiply the number by 0.6213711922. To go the other way, multiply miles per hour by 1.609344.
How many mph is 100 km/h?
100 km/h is 62.1371 mph.