Unit Converter
Convert From MPH to KM/H and Vice Versa
MPH ↔ KM/H
Type in either miles per hour or kilometers per hour — it’ll convert to the other automatically!
🎯 Interactive Converter
60 mph = 96.56 km/h
🚗 What is Miles per Hour (mph)?
Miles per hour is a unit of speed commonly used in the **United States** and **United Kingdom**. It measures how many miles are traveled in one hour. It’s standard for **speed limits**, **automotive specs**, and **sports** in imperial countries.
🚴♂️ What is Kilometers per Hour (km/h)?
Kilometers per hour is the **metric unit of speed**, used in most countries worldwide. It indicates how many kilometers are traveled in one hour and is found on **road signs**, **vehicle dashboards**, and **GPS devices** across Europe, Asia, and more.
🧠 Quick Comparison
| Unit | Equivalent | Used In |
|---|---|---|
| 1 mph | 1.60934 km/h | USA, UK, car specs |
| 1 km/h | 0.62137 mph | Most of the world |
🧮 How to Convert
Miles/hour to Kilometers/hour:
km/h = mph × 1.60934
Kilometers/hour to Miles/hour:
mph = km/h × 0.62137
🧪 Example:
60 mph × 1.60934 = 96.56 km/h
💡 Quick Tip
To convert on the fly: double mph and subtract a little. For example, 60 mph is a little less than 120 km/h.
🎉 Did You Know?
Germany’s autobahns have no general speed limit, but vehicles often exceed 200 km/h (≈ 124 mph). In contrast, most U.S. highways are limited to 55–75 mph.
🌍 Real-World Speed Examples
- 5 mph – Walking pace (≈ 8 km/h)
- 25 mph – Urban speed limit
- 60 mph – U.S. freeway speed
- 100 km/h – Common highway speed (≈ 62 mph)
- 300 km/h – Formula 1 racing speed
📊 MPH to KM/H Conversion Chart
| Miles/hour (mph) | Kilometers/hour (km/h) |
|---|---|
| 1 | 1.61 |
| 5 | 8.05 |
| 30 | 48.28 |
| 60 | 96.56 |
| 75 | 120.70 |
| 100 | 160.93 |
📜 Timeline: Speed Standards History
- 1890s: Speedometers introduced using mph in the U.S.
- 1900s: Metrication movement adopts km/h globally
- Today: Most countries use km/h; U.S. and UK still use mph
🌐 When to Use mph vs km/h
- 🛣️ mph: USA, UK, driving laws, legacy dashboards
- 🚗 km/h: Europe, Asia, international vehicles
- 🧮 Quick Tip: Multiply mph × 1.6 to get km/h fast