kn to mph Converter
Convert speed and velocity units instantly with this free knots to mph converter.
Features bidirectional conversion, reference tables, and applications for travel, sports, and science.
Last updated · How we build & check our tools
Frequently Asked Questions
Common questions about the kn to mph Converter
A knot is 1 nautical mile per hour = 1.852 km/h = 1.15 mph. Used for ships and aircraft.
Explore Financial Toolset
Free financial calculators
Sources & References
International System of Units (SI): speed and velocity
Speed and velocity is measured in the metre per second (m/s); 1 mph = 0.44704 m/s. Conversions between SI and other units use exact, internationally agreed factors maintained by NIST.
International System of Units (SI)
Authoritative definitions for speed and velocity, from the BIPM SI Brochure (9th edition), the defining reference for the SI.