Convert Knots to MPH
1 kn = 1.15078 mph. Multiply the speed in knots by 1.15078 to get mph.
Knots
kn
Miles/Hour
mph
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How to Convert Knots to Miles/Hour
Multiply the speed in knots by 1.15078 to get mph.
Common Knots to Miles/Hour Values
Frequently Asked Questions
Why do sailors and pilots use knots?
One knot equals one nautical mile per hour, and nautical miles are based on the circumference of the Earth. This makes navigation calculations much simpler when working with latitude and longitude.
How many mph is 30 knots?
30 knots equals 34.52 mph. This is considered a strong wind and rough sea conditions.
What is a nautical mile?
A nautical mile is 1.852 km (1.151 statute miles). It equals one minute of arc of latitude on the Earth's surface, which is why it's used in maritime and aviation navigation.