Skip to content

Speed Converter

Convert between km/h, mph, metres per second, and knots.

Frequently asked questions

How do you convert km/h to mph?

Divide the km/h value by 1.609, or multiply by 0.6214. For example, 100 km/h is approximately 62.14 mph. A quick estimate: take the km/h value and multiply by 0.6.

What is a knot?

A knot is one nautical mile per hour, equal to approximately 1.852 km/h or 1.151 mph. Knots are used in aviation and maritime navigation because they relate directly to distances on navigation charts.

How do you convert mph to m/s?

Multiply the mph value by 0.4470. For example, 60 mph equals approximately 26.82 m/s. Metres per second is the SI unit for speed, used in physics and engineering.