Speed Converter
Convert km/h, mph, m/s, knots, and ft/s. Fast, accurate, runs entirely in your browser.
1 km/h = 0.6213716893 mph
Common speed conversions
- 1 km/h = 0.6213716893 mph
- 1 mph = 1.609342713 km/h
- 1 m/s = 3.59999712 km/h
- 1 kn = 1.851996918 km/h
About Speed Converter
Speed conversion between km/h, mph, m/s, knots, and ft/s comes up in driving, sports, physics, and aviation. Filenify's speed converter gives you all five units on one screen with instant two-way updates, so you can flip between a highway speed limit and a running pace or between a marine knot and a physics-problem m/s without reaching for a formula sheet. Rounding is configurable, and shareable URLs let you send a pre-filled conversion to someone else.
How Speed Converter works
- 1Pick your source unit (km/h, mph, m/s, knots, ft/s).
- 2Enter the value — every other unit updates instantly.
- 3Adjust rounding precision as needed.
- 4Copy the answer or share the URL with the value pre-filled.
Frequently asked questions
Popular speed conversions
Jump straight to the most-searched pairs.