Direct answer

How Many mph in a Knot? 1 kn ≈ 1.15078 mph

1 knot equals about 1.15078 miles per hour. Marine and aviation speed answer — knot means nautical miles per hour.

Question

How many miles per hour are in one knot?

1 knot equals approximately 1.15078 mph (exactly 1.852 km/h).

1 kn

≈ 1.15078 mph

1 kn

1.852 km/h (exact)

10 kn

≈ 11.508 mph

A knot is one nautical mile per hour, not one statute mile per hour.

Because 1 nmi = 1.852 km and 1 mile ≈ 1.609344 km, 1 kn ≈ 1.15078 mph.

METAR wind reports and ship logs commonly use knots; news headlines often convert to mph.

Important caveat

Do not treat knots as the same as mph. Using 1:1 understates true speed by about 15%.