Speed Converter

Convert speeds between km/h, mph, m/s and knots.

Result

Converted speed

62.137

How it works

Convert via metres per second

Different fields use different speed units — cars in km/h or mph, physics in m/s, ships and planes in knots. This converts between all four.

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Frequently asked questions

How fast is 100 km/h in mph?

About 62 mph — multiply km/h by roughly 0.621.

What is a knot?

One nautical mile per hour, about 1.852 km/h, used at sea and in aviation.

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