mph to Knots

Convert mph to kn using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.

UnitsSpeed

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

x_{kn} = f(x_{mph})

Symbol	Meaning	Unit
$mph$	Value in mph	mph
$kn$	Value in kn	kn

Source: NIST SP 811 / ISO 80000

Convert mph to kn using the internationally-agreed conversion factor \u2014 the bridge between metric and Imperial marine units.