Kilometer per Hour to Mile per Hour Converter
Kilometer per Hour to Mile per Hour Reference Table
| Kilometer per Hour (km/h) | Mile per Hour (mph) |
|---|---|
| 1 | 0.621371 |
| 2 | 1.24274 |
| 5 | 3.10686 |
| 10 | 6.21371 |
| 20 | 12.4274 |
| 50 | 31.0686 |
| 100 | 62.1371 |
| 500 | 310.686 |
| 1000 | 621.371 |
Explore Kilometer per Hour
Convert Kilometer per Hour to Mile per Hour instantly with our free online converter. The Kilometer per Hour (km/h) is the most common speed unit for road traffic worldwide, displayed on speedometers in most countries. The Mile per Hour (mph) is the standard road speed unit in the United States and United Kingdom, shown on most American speedometers. 1 Kilometer per Hour equals 0.621371 Mile per Hour. To convert Kilometer per Hour to Mile per Hour, divide the value by 1.60934 (multiply by 0.621371).
Frequently Asked Questions
How many Mile per Hours are in 1 Kilometer per Hour?
1 Kilometer per Hour equals 0.621371 Mile per Hour. To convert Kilometer per Hour to Mile per Hour, divide the value by 1.60934 (multiply by 0.621371).
How do you convert Kilometer per Hour to Mile per Hour?
To convert Kilometer per Hour to Mile per Hour, divide the value by 1.60934 (multiply by 0.621371). For example, 10 km/h = 6.21371 mph.
What is a Kilometer per Hour used for?
The Kilometer per Hour (km/h) is the most common speed unit for road traffic worldwide, displayed on speedometers in most countries.
What is a Mile per Hour used for?
The Mile per Hour (mph) is the standard road speed unit in the United States and United Kingdom, shown on most American speedometers.
What is 100 Kilometer per Hour in Mile per Hour?
100 km/h equals 62.1371 mph. To convert Kilometer per Hour to Mile per Hour, divide the value by 1.60934 (multiply by 0.621371).
How fast does a commercial airplane fly?
Commercial aircraft cruise at 800–920 km/h (500–570 mph), which is roughly Mach 0.75–0.85. A Boeing 737 typically cruises at about 840 km/h (520 mph). The Concorde flew at Mach 2, or about 2,180 km/h (1,354 mph), but was retired in 2003.
How fast is the fastest human?
Usain Bolt set the 100 m world record of 9.58 seconds in 2009, reaching a peak speed of approximately 44.72 km/h (27.8 mph or 12.4 m/s) between the 60 m and 80 m marks. The average speed over the full 100 m was about 37.6 km/h (23.4 mph).
What is the speed of sound?
The speed of sound in air at 20°C (68°F) is approximately 343 m/s, or 1,235 km/h (767 mph). This is known as Mach 1. The speed varies with temperature: at 0°C it is 331 m/s, and at 30°C it is 349 m/s. In water, sound travels about 4.3× faster at roughly 1,480 m/s.
What are typical highway speed limits around the world?
Highway speed limits vary by country: Germany Autobahn has an advisory speed of 130 km/h (81 mph) with no general limit on some sections; France, Spain, and Italy use 130 km/h; the UK is 70 mph (113 km/h); the US interstate limits range from 65–80 mph (105–129 km/h); Australia uses 100–110 km/h (62–68 mph).
How fast does a bicycle go?
A casual cyclist on flat ground averages 15–20 km/h (9–12 mph). A fit recreational rider maintains 25–30 km/h (15–19 mph). Professional road cyclists average 40–45 km/h (25–28 mph) during races. The cycling land speed record is 296 km/h (184 mph), set in a streamlined recumbent bike in 2018.