mph to Knots
Convert mph to kn using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
Value in kn
0.8690kn
Formula, assumptions, and limits
$$x_{kn} = f(x_{mph})$$
Standard SI / NIST conversion factor. Navigation unit sources include the 1929 London Conference (1 nautical mile = 1852 m). Speed conversions ISO-standardised across maritime industry.
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