Speed Converter

Convert between knots, mph, and km/h using exact nautical mile and statute mile definitions.

Works for any combination of the units above -- every value converts through the same verified base-unit math used on the individual pages.

How Speed Units Relate

Speed units combine a distance unit and a time unit. Knots (nautical miles per hour) are standard in maritime and aviation navigation, kilometers per hour is the metric standard used by most of the world's road signs, and miles per hour is standard in the United States and the United Kingdom.

All Speed Converters

Each of these has its own page with the exact formula, a reference table, and answers to common questions.

Knot to Mile per Hour Kilometer per Hour to Mile per Hour Mile per Hour to Kilometer per Hour

Cedrick Reese

Ready Utilities was founded by Cedrick Reese, a retired veteran and web developer who enjoys building free, user-friendly online tools that simplify everyday tasks. His journey began in the early 2000s with affiliate marketing and niche site development, which grew into a passion for creating practical digital utilities and calculators. After retiring, he earned a Computer Systems Technician certificate from UEI College, completed Electro-Mechanical Technologies at Tulsa Welding School, and finished the Carpentry program at Florida State College at Jacksonville. Today, he combines his technical background and craftsmanship by building furniture using traditional woodworking methods, gardening, and developing helpful online tools for users worldwide.