Knots to Miles per Hour
Convert knots to miles per hour instantly. 1 kn = 1.150779448 mph. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert knots to miles per hour
To convert knots to miles per hour, multiply by 1.150779448. The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
mph = kn × 1.150779448
Knots to Miles per Hour conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| Knots | Miles per Hour |
|---|---|
| 1 kn | 1.150779 mph |
| 2 kn | 2.301559 mph |
| 3 kn | 3.452338 mph |
| 5 kn | 5.753897 mph |
| 10 kn | 11.507794 mph |
| 20 kn | 23.015589 mph |
| 25 kn | 28.769486 mph |
| 50 kn | 57.538972 mph |
| 100 kn | 115.077945 mph |
| 500 kn | 575.389724 mph |
| 1,000 kn | 1,150.78 mph |
What is a knot?
One nautical mile per hour, the standard at sea and in the air.
What is a miles per hour?
Exactly 0.44704 m/s. Road speeds in the US and UK.
The formula
mph = kn × 1.150779448
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the Knots to Miles per Hour
- Type the number of knots you want to convert.
- Read the result in miles per hour straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked miles per hour to knots page.
Knots to Miles per Hour — frequently asked questions
How many miles per hour are in a knot?
One knot equals 1.150779448 mph. mph = kn × 1.150779448
What is the formula to convert knots to miles per hour?
The formula is mph = kn × 1.150779448. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert miles per hour back to knots?
Divide instead of multiplying: one miles per hour is 0.8689762419 kn. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this knots to miles per hour free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the knots to miles per hour.
- knots to miles per hour
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 19, 2026 · Calculation runs client-side · No data collected · Report an error