How many miles per hour are in a knot?

1 kn = 1.1508 mph. To convert any amount, multiply by 1.1508.

How do you convert knots to miles per hour?

Multiply the number of knots by 1.1508 to get miles per hour. The formula is shown in the "How it's calculated" section above.

Where does the conversion factor come from?

It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.

Unit converter — Velocity

Knots to miles per hour converter

Convert knots (kn) to miles per hour (mph). Source-cited conversion factor, exact to the displayed precision.

Results are mathematically exact for the displayed precision. How we calculate.

How it's calculated

Convert knots to miles per hour— the formula

Knots convert to miles per hour by multiplying by the published conversion factor. The factor below is exact to the precision shown, sourced from the citation under the formula.

mph = kn × 1.1508

kn = mph × 0.868976

m/s: SI derived (m × s⁻¹). 1 km/h = 1000/3600 m/s; 1 mph = 0.44704 m/s exactly; 1 knot = 1852/3600 m/s exactly (international nautical mile).

Questions

Frequently asked questions

How many miles per hour are in a knot?
1 kn = 1.1508 mph. To convert any amount, multiply by 1.1508.
How do you convert knots to miles per hour?
Multiply the number of knots by 1.1508 to get miles per hour. The formula is shown in the "How it's calculated" section above.
Where does the conversion factor come from?
It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.