Online calculator to convert knots to miles per hour (kn to mph) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Speed or Velocity units.
Conversion Calculator
Enter your value in the conversion calculator below.
Convert knots to mph
TIP: If the result of your conversion is 0, try increasing the "Decimals".
Conversion Definitions
The following is a list of definitions relating to conversions between knot and miles per hour.
What is a knot (kn)?
A knot is a unit of speed that is equal to to one nautical mile per hour. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. It is approximately one minute of arc measured along any meridian. The symbol for knot is kn. There are 0.86897583 kn in mph.
What is miles per hour (mph)?
Miles per hour is a unit of Speed or Velocity in both US Customary Units as well as the Imperial System. It measures the number of miles traveled in an hour. The symbol for miles per hour is mph. There are 1.15078 mph in kn.
Conversion Formula
Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from knots to mph is:
mph = knots x 1.15078
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from knot to miles per hour (kn to mph).
Knot to Miles per hour Conversion Example
Task: Convert 250 knots to miles per hour (show work) Formula: knots x 1.15078 = mph Calculations: 250 knots x 1.15078 = 287.695 mph Result: 250 knots is equal to 287.695 mph
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from knots to mph.
Knots to Miles per hour Conversion Chart
| knot (kn) | miles per hour (mph) |
|---|---|
| 1 kn | 1.15078 mph |
| 2 kn | 2.30156 mph |
| 3 kn | 3.45234 mph |
| 4 kn | 4.60312 mph |
| 5 kn | 5.7539 mph |
| 6 kn | 6.90468 mph |
| 7 kn | 8.05546 mph |
| 8 kn | 9.20624 mph |
| 9 kn | 10.35702 mph |
| 10 kn | 11.5078 mph |
| 20 kn | 23.0156 mph |
| 30 kn | 34.5234 mph |
| 40 kn | 46.0312 mph |
| 50 kn | 57.539 mph |
| 75 kn | 86.3085 mph |
| 100 kn | 115.078 mph |
| 250 kn | 287.695 mph |
| 500 kn | 575.39 mph |
| 750 kn | 863.085 mph |
| 1,000 kn | 1,150.78 mph |
| 2,500 kn | 2,876.95 mph |
| 5,000 kn | 5,753.9 mph |
| 7,500 kn | 8,630.85 mph |
| 10,000 kn | 11,507.8 mph |
| 25,000 kn | 28,769.5 mph |
| 50,000 kn | 57,539 mph |
| 75,000 kn | 86,308.5 mph |
| 100,000 kn | 115,078 mph |
| 250,000 kn | 287,695 mph |
Related Units
The following tables provide a summary of the Speed or Velocity units (Per Hour, Per Minute, Per Second and Per Millisecond) within their respective measurement systems.
Per Hour
| Unit | Symbol | Measurement System |
|---|---|---|
| inches per hour | in/h | US Customary Units/Imperial System |
| feet per hour | ft/h | US Customary Units/Imperial System |
| yards per hour | yd/h | US Customary Units/Imperial System |
| miles per hour | mph | US Customary Units/Imperial System |
| millimeters per hour | mm/h | Metric System |
| centimeters per hour | cm/h | Metric System |
| decimeters per hour | dm/h | Metric System |
| meters per hour | m/h | Metric System |
| kilometers per hour | km/h | Metric System |
| knot | kn | Non-SI (International) |
Per Minute
| Unit | Symbol | Measurement System |
|---|---|---|
| inches per minute | in/m | US Customary Units/Imperial System |
| feet per minute | ft/m | US Customary Units/Imperial System |
| yards per minute | yd/m | US Customary Units/Imperial System |
| miles per minute | mi/m | US Customary Units/Imperial System |
| millimeters per minute | mm/m | Metric System |
| centimeters per minute | cm/m | Metric System |
| decimeters per minute | dm/m | Metric System |
| meters per minute | m/m | Metric System |
| kilometers per minute | km/m | Metric System |
Per Second
| Unit | Symbol | Measurement System |
|---|---|---|
| inches per second | in/s | US Customary Units/Imperial System |
| feet per second | ft/s | US Customary Units/Imperial System |
| yards per second | yd/s | US Customary Units/Imperial System |
| miles per second | mi/s | US Customary Units/Imperial System |
| millimeters per second | mm/s | Metric System |
| centimeters per second | cm/s | Metric System |
| decimeters per second | dm/s | Metric System |
| meters per second | m/s | Metric System |
| kilometers per second | km/s | Metric System |
Per Millisecond
| Unit | Symbol | Measurement System |
|---|---|---|
| millimeters per millisecond | mm/ms | Metric System |
| centimeters per millisecond | cm/ms | Metric System |
| decimeters per millisecond | dm/ms | Metric System |
| meters per millisecond | m/ms | Metric System |
| kilometers per millisecond | km/ms | Metric System |
Note: For Speed or Velocity conversions, US Customary Units and the Imperial System are equivalent.
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