Miles per hour to Knots

Convert miles per hour (mph) to knots (kn) instantly — with formula and reference table.

mph
kn

Quick answer: 1 mph = 0.868976 kn. To convert miles per hour to knots, multiply by mph × 0.868976.

Converting miles per hour to knots

This converter changes a value in miles per hour (mph) into knots (kn). One miles per hour equals 0.868976 kn. One mph equals 0.869 knots. Knots are based on nautical miles per hour, used at sea and in aviation. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.

Formula

kn = mph × 0.868976

Example

Convert 10 mph to kn: 10 × 0.868976 = 8.689762 kn.

Miles per hour to Knots conversion table

Miles per hour (mph)Knots (kn)
1 mph0.868976 kn
2 mph1.737952 kn
3 mph2.606929 kn
5 mph4.344881 kn
10 mph8.689762 kn
20 mph17.379525 kn
25 mph21.724406 kn
50 mph43.448812 kn
100 mph86.897624 kn
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How to use this converter

  1. Enter a value in the miles per hour (mph) field.
  2. Read the converted value in knots (kn) below.
  3. Type into the kn field instead to convert in reverse, or use the swap button.

Frequently asked questions

How many knots is one mph?

1 mph equals 0.869 knots.

How do I convert 60 mph to knots?

60 times 0.869 = 52.1 knots.

How fast is 100 mph in knots?

100 mph equals about 86.9 knots.

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Last updated: 2026-05-27 Free · No signup · Works offline Suggest an improvement