Speed converter
mph, km/h, m/s and knots, converted with exact factors.
Result
- 100 km/h =
- 62.137119 mph
- Meters per second
- 27.777778 m/s
- Feet per second
- 91.134442 ft/s
- Knot
- 53.99568 kn
How this was calculated
Conversion
1 km/h = 0.62137119 mph
100 km/h = 62.137119 mph
Exact factors
Both units defined in m/s
1 km/h = 0.277777777778 m/s; 1 mph = 0.44704 m/s
Common speed conversions
1 mph = 1.609344 km/h exactly. 1 km/h = 0.27778 m/s. 1 knot = 1 nautical mile an hour = 1.852 km/h. 100 km/h is 62.14 mph; 70 mph is 112.65 km/h.
Questions people ask
Why do ships and planes use knots?
A nautical mile is one minute of latitude, which makes navigating with charts simpler.
How fast is 1 m/s?
3.6 km/h, or about 2.24 mph: a brisk walk.