Speed Converter

Convert between km/h, mph, meters per second, feet per second and knots — for driving abroad, running paces, weather reports and sailing.

Value

From

Speed in miles per hour

0.621371 mph

1 km/h = 0.621371 mph

1 km/h in every unit

Kilometers per hour1 km/h
Miles per hour0.621371 mph
Meters per second0.277778 m/s
Feet per second0.911344 ft/s
Knots0.539957 kn

Get new free tools from Quickora

Join the list and I’ll send you new calculators, converters, and everyday utilities when they launch.

No spam. Unsubscribe anytime.

How to use it

Enter a speed and its unit.
Choose the unit to convert to, or check all units at once.
Use swap to flip the direction.

Examples

Driving abroad

A 100 km/h limit is 62.1 mph, and 60 mph is 96.6 km/h.

Sailing and wind

1 knot is exactly 1.852 km/h, or about 1.15 mph.

Conversion tables

Kilometers per hour to miles per hour
Kilometers per hour	Miles per hour
30 km/h	18.641 mph
50 km/h	31.069 mph
60 km/h	37.282 mph
80 km/h	49.71 mph
90 km/h	55.923 mph
100 km/h	62.137 mph
110 km/h	68.351 mph
120 km/h	74.565 mph
130 km/h	80.778 mph

Miles per hour to kilometers per hour
Miles per hour	Kilometers per hour
20 mph	32.187 km/h
25 mph	40.234 km/h
30 mph	48.28 km/h
45 mph	72.42 km/h
55 mph	88.514 km/h
60 mph	96.561 km/h
65 mph	104.61 km/h
70 mph	112.65 km/h
75 mph	120.7 km/h

How the units relate

Speeds are distances over time, so they follow the length definitions: a mile is 1.609344 km, making 1 mph exactly 1.609344 km/h. A knot is one nautical mile (1,852 m) per hour.

Meters per second are used in science and weather; multiply by 3.6 to get km/h.

1 mph = 1.609344 km/h · 1 knot = 1.852 km/h · 1 m/s = 3.6 km/h

Frequently asked questions

Quick way to convert km/h to mph?

Multiply by 0.6 for a close estimate (or by 5/8). 80 km/h ≈ 50 mph.

Why do pilots and sailors use knots?

Nautical miles relate directly to latitude (one minute of arc), which makes navigation on charts simpler.

How do I convert running pace to speed?

Divide 60 by your minutes per mile to get mph. An 8-minute mile is 7.5 mph, which this tool converts to 12.07 km/h.

Length ConverterConvert between millimeters, centimeters, meters, kilometers, inches, feet, yards, miles and nautical miles, using exact international conversion factors.Temperature ConverterConvert between Celsius, Fahrenheit and Kelvin instantly, with the formulas shown and a quick reference of everyday temperatures.Area ConverterConvert between square feet, square meters, acres, hectares, square miles and more — for floor plans, land and property listings.Volume ConverterConvert liters, milliliters, US cups, tablespoons, teaspoons, fluid ounces, pints, quarts and gallons — handy for recipes and for comparing US and metric containers.

Found this useful? Quickora is free to use — buy us a coffee (opens in a new tab) to help keep it that way.

More in Converters · Last reviewed October 2026