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MPH to Knots Converter

Convert miles per hour to knots instantly. Free online calculator.

Quick reference: 1 mph = 0.8689762419 kn

Tip: You can swap the direction to convert kn → mph.

About Miles per hour and Knots

Miles per hour (mph) is a unit of length in the metric system. It is commonly used for everyday measurements such as body height, fabric, furniture, and small distances.

Knots (kn) is a unit of length in the imperial/US customary system. It is widely used in the United States and in many industries (construction, screens, tools) where inches are standard.

Conversion formulas

Tip: You can swap the direction if you want to convert kn → mph.