MPH to KPH Converter

Enter a speed in miles per hour to see it in kilometres per hour, metres per second and knots.

Updated

Embed this calculator

Paste this code into your page. The calculator runs inside the frame and links back to the full version.

Keep the credit link in place. Do not resell the calculator.

Formula

km/h = mph x 1.609344

m/s = mph x 0.44704

knots = mph x 0.868976

Worked example

60 mph x 1.609344 = 96.56064 km/h; 60 x 0.44704 = 26.8224 m/s; about 52.138575 knots.

Conversion table

mph km/h
10 16.09
20 32.19
30 48.28
40 64.37
50 80.47
60 96.56
70 112.65
80 128.75

Frequently asked questions

How many km/h is 60 mph?

60 mph is 96.56 km/h. Multiply miles per hour by 1.609344: 60 x 1.609344 = 96.56064.

What is the formula to convert mph to kph?

kph = mph x 1.609344. A quick mental estimate is to add a half and a tenth: 50 mph is about 50 + 25 + 5 = 80 km/h (exact 80.47).

How many metres per second is 1 mph?

Exactly 0.44704 m/s, because a mile is 1609.344 m and an hour is 3600 s. So 30 mph is 13.4112 m/s.

How many knots is 60 mph?

About 52.14 knots. A knot is one nautical mile (1852 m) per hour, so 1 mph is 0.868976 kn.