How to Use the Knots to MPH Converter
Enter a speed in knots to convert it to miles per hour for marine, aviation and weather speed comparisons.
Practical Example
20 knots × 1.150779448 ≈ 23.0156 mph.
Factors That Affect the Result
The unit relationship is fixed. Real-world speed can vary because of wind, current, instrument error and whether the speed is over water, ground or air.
Frequently Asked Questions
How many mph is one knot?
One knot is about 1.15078 mph.
How many mph is 10 knots?
10 knots is about 11.51 mph.
Is a knot a nautical mile per hour?
Yes. One knot equals one nautical mile per hour.
Conversion Formula and Context
One international knot equals one nautical mile per hour, exactly 1.150779448 miles per hour. Knots are commonly used in marine and aviation contexts; do not confuse nautical miles with statute miles.