Miles per Hour to Knots converter (mph to kn)
Convert Miles per Hour (mph) to Knots (kn) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
Knots to Miles per Hour (kn to mph) ►
How to convert Miles per Hour to Knots
1 mile per hour (mph) is equal to 0.868976 knots (kn).
kn = mph × 0.868976
Multiply the speed in mph by 0.868976:
Example: Convert 20 mph to knots:
kn = 20 × 0.868976 = 17.3795 kn
What is a Miles per Hour?
The Miles per Hour (mph) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Knots?
The Knots (kn) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts speed from Miles per Hour into Knots. One mph equals 0.868976 kn.
Miles per Hour to Knots conversion table
Common mph values and the matching kn result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Miles per Hour (mph) | Knots (kn) |
|---|---|
| 1 mph | 0.868976 kn |
| 5 mph | 4.34488 kn |
| 10 mph | 8.68976 kn |
| 20 mph | 17.37952 kn |
| 30 mph | 26.06928 kn |
| 50 mph | 43.4488 kn |
| 100 mph | 86.8976 kn |
How this calculator works
The form on this page is a Miles per Hour-to-Knots converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the kn result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many kn are in 1 mph?
1 mph = 0.868976 kn.
How do I convert Miles per Hour to Knots?
Multiply the speed in mph by 0.868976:
Is this mph to kn converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.