Speed in miles per hour (mi/h, mi h-1):
Result in kilometers per hour (km/h, km h-1):
How to convert speed from mi/h to km/h?
1 mi/h ≈ 1.609 km/h
1 miles per hour ≈ 1.609 kilometers per hour
kilometers per hour (US) = kilometres per hour (UK) = km / h = km h-1 = km • h-1
Miles per hour = mi / h = mi h-1 = mi • h-1 = mph = m.p.h = MPH
Speed in kilometers per hour is equal to speed in miles per hour multiply by 1.609.
Formulas:
kilometers per hour = miles per hour x 1.609 344
υkm/h = υmi/h x 1.609
υkm/h – speed in kilometers per hour;
υmi/h – speed in miles per hour.
For example:
Convert speed 10 mi/h to km/h.
Solution: υkm/h = υmi/h x 1.609 = 10 x 1.609 = 14.67 km/h. Answer: 10 mi/h = 14.67 km/h
Convert speed 20 mi/h to km/h.
Solution:υkm/h = υmi/h x 1.609 = 20 x 1.609 = 29.3 km/h. Answer: 20 mi/h = 29.3 km/h