Speed Converter
Convert among m/s, km/h, miles per hour (mph), feet per second (ft/s), and knots (kn).
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Formula
mph = km/h × 0.6213711922
Example
Example: convert 1 kilometer per hour to miles per hour.
1 km/h = 0.62137119 mph
Conversion table
| kilometers per hour (km/h) | miles per hour (mph) |
|---|---|
| 1 km/h | 0.62137119 mph |
| 2 km/h | 1.24274238 mph |
| 5 km/h | 3.10685596 mph |
| 10 km/h | 6.21371192 mph |
| 20 km/h | 12.42742384 mph |
| 50 km/h | 31.06855961 mph |
| 100 km/h | 62.13711922 mph |
Explanation
Kilometers per hour are used in most countries for road speed limits, while Miles per hour are used in the United States and the United Kingdom for road speeds.
How to convert kilometers per hour to miles per hour
- Start with the value in kilometers per hour (km/h).
- Multiply it by 0.6213711922.
- The result is the measurement in miles per hour (mph).
Example: 1 km/h → 0.62137119 mph
Frequently Asked Questions
How many km/h is 60 mph?
60 miles per hour equals 96.56 kilometers per hour.
What is the formula to convert mph to km/h?
Multiply miles per hour by 1.60934 to get kilometers per hour.
How do you convert km/h to mph?
Divide kilometers per hour by 1.60934 to get miles per hour.
How many km/h is 100 mph?
100 mph equals 160.93 km/h.
Why does the US use mph?
The United States uses the imperial system for road speeds, while many countries use kilometers per hour.
Can I convert mph, km/h, m/s, and knots here?
Yes. This converter supports several common speed units including mph, km/h, meters per second, and knots.
How can I estimate mph to km/h mentally?
Multiply by about 1.6 for a quick estimate from mph to km/h.
What speed unit is used in aviation and navigation?
Knots are commonly used in aviation and marine navigation.
How many m/s is 1 km/h?
1 km/h equals about 0.27778 meters per second (m/s).
How do you convert mph to knots?
Multiply mph by about 0.868976 to get knots (kn).