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Miles per Hour to Knots Converter

1 mph = 0.8689762419 kn. Type any value to convert miles per hour to knots.

1 mph = 0.8689762419 kn

Formula: kn = mph × 0.8689762419

Common values
Decimals
In every unit 7 units
Meter per second (m/s) 0.44704 m/s
Kilometer per hour (km/h) 1.609344 km/h
Mile per hour (mph) 1 mph
Knot (kn) 0.8689762419 kn
Foot per second (ft/s) 1.466666667 ft/s
Mach (Mach) 0.001313687576 Mach
Speed of light (c) 1.491164931 × 10⁻⁹ c

Convert on our server?

If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 6 hours so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Calculated in your browser – nothing you type is sent anywhere. Privacy details

Miles per hour to knots table

Formula: kn = mph × 0.8689762419

Mile per hour (mph)Knot (kn)
0.1 mph0.08689762419 kn
0.25 mph0.2172440605 kn
0.5 mph0.434488121 kn
1 mph0.8689762419 kn
2 mph1.737952484 kn
3 mph2.606928726 kn
4 mph3.475904968 kn
5 mph4.34488121 kn
6 mph5.213857451 kn
7 mph6.082833693 kn
8 mph6.951809935 kn
9 mph7.820786177 kn
10 mph8.689762419 kn
12 mph10.4277149 kn
15 mph13.03464363 kn
20 mph17.37952484 kn
25 mph21.72440605 kn
30 mph26.06928726 kn
40 mph34.75904968 kn
50 mph43.4488121 kn
60 mph52.13857451 kn
75 mph65.17321814 kn
100 mph86.89762419 kn
150 mph130.3464363 kn
200 mph173.7952484 kn
250 mph217.2440605 kn
500 mph434.488121 kn
1,000 mph868.9762419 kn

How to use: Miles per Hour to Knots

  1. 1 Type the value in miles per hour.
  2. 2 The result in knots appears at once – or type in the knots field to convert back.
  3. 3 Pick a common value, round to fewer decimals or swap the units with one click.
  4. 4 Copy the result, or open “In every unit” to see the value in all units of speed.

About this tool

Mile per hour (mph) is a unit of speed (imperial and US customary); 1 mph = 0.44704 m/s. Knot (kn) is a unit of speed (nautical); 1 kn = 0.5144444444 m/s.

To convert miles per hour to knots, multiply the value by 0.8689762419 (kn = mph × 0.8689762419). Example: 50 mph = 43.4488121 kn.

Calculated in your browser – nothing you type is sent anywhere.

Frequently asked questions

How do I convert miles per hour to knots?

To convert miles per hour to knots, multiply the value by 0.8689762419: kn = mph × 0.8689762419. For example 50 mph = 43.4488121 kn.

What is 1 mph in knots?

1 mph = 0.8689762419 kn. The other way round, 1 kn = 1.150779448 mph.

How exact is the result?

The converter uses the official definitions of both units and shows up to 10 significant digits; choose 0–6 decimals to round. Both units are defined exactly in terms of each other, so the factor itself is exact.

Can I convert other units of speed here?

Yes – choose any of the 7 units of speed in the From and To lists, or switch to another measurement at the top.

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