Miles per hour to Kilometers per hour Converter
Convert miles per hour to kilometers per hour (mph to km/h) quickly and accurately.
Quick conversion table
| Miles per hour | Kilometers per hour |
|---|---|
| 1 mph | 1.60934 km/h |
| 5 mph | 8.04672 km/h |
| 10 mph | 16.09344 km/h |
| 20 mph | 32.18688 km/h |
| 30 mph | 48.28032 km/h |
| 40 mph | 64.37376 km/h |
| 50 mph | 80.4672 km/h |
| 60 mph | 96.56064 km/h |
| 65 mph | 104.60736 km/h |
| Miles per hour | Kilometers per hour |
|---|---|
| 70 mph | 112.65408 km/h |
| 80 mph | 128.74752 km/h |
| 90 mph | 144.84096 km/h |
| 100 mph | 160.9344 km/h |
| 110 mph | 177.02784 km/h |
| 120 mph | 193.12128 km/h |
| 130 mph | 209.21472 km/h |
| 150 mph | 241.4016 km/h |
| 200 mph | 321.8688 km/h |
About this tool
Miles per hour (mph) is the imperial unit of speed used on speed limit signs and speedometers in the United States and the United Kingdom.
Kilometers per hour (km/h) is the metric unit used for the same purpose in almost every other country.
This converter helps when driving in, or reading vehicle specifications from, a country that uses the other unit — for example, converting a US speed limit into km/h before a road trip in Europe.
Worked example
- 1Start with your value in miles per hour. For example, 30 mph.
- 2Apply the formula: 1 mph = 1.60934 km/h.
- 330 mph converts to 48.28032 km/h.
Formula
1 mph = 1.60934 km/h
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Frequently asked questions
- How do I convert miles per hour to kilometers per hour?
- To convert miles per hour to kilometers per hour, apply the formula: 1 mph = 1.60934 km/h.
- What is 1 mph in kilometers per hour?
- 1 mph is equal to 1.60934 km/h.
- What is 10 mph in kilometers per hour?
- 10 mph is equal to 16.09344 km/h.
- What is 100 mph in kilometers per hour?
- 100 mph is equal to 160.9344 km/h.
- Is the mph to km/h conversion exact?
- Yes. Since 1 mile is defined as exactly 1,609.344 meters, the mph-to-km/h factor is exact rather than approximated.