Use this mph to knots converter to change a mile per hour measurement into its knot equivalent. Enter a number in the calculator above and the result updates instantly.
Speed conversions are useful for driving, running pace, cycling, aviation, marine navigation, weather reports, and physics calculations.
What is a mile per hour?
Miles per hour is a speed unit commonly used for road speed limits and vehicle speeds in the United States and the United Kingdom.
What is a knot?
Knot (kn) is a speed unit.
Mph to Knots Converter formula
To convert miles per hour to knots, use the formula below.
1 kn = 1.15077944802 mph. This relationship is the conversion factor used by the calculator.
How to convert mph to knots
Start with the mile per hour value, apply the formula, and round the result only after the calculation is complete.
Example: 10 mph = 8.689762419 kn.
- 1 mph = 0.8689762419 kn
- 10 mph = 8.689762419 kn
- 100 mph = 86.8976241901 kn
Manual conversion steps
- Write down the value in miles per hour.
- Use the conversion formula: knots = miles per hour / 1.15077944802.
- Calculate the result in knots.
- Round the answer to the number of decimal places you need.
For quick checking, the converter above performs the same calculation automatically.
Common mph to knots use cases
This conversion is useful in practical situations where measurements need to move between different unit systems or audiences.
- Convert miles per hour to knots for driving, running, cycling, aviation, marine navigation, and weather reports.
- Speed conversions help when comparing travel speeds or limits between countries and measurement systems.
Common mistakes when converting mph to knots
These are the most common issues to watch for when doing this conversion by hand.
- Do not mix up the direction of the conversion. mph to knots is not the same as knots to mph.
- Avoid rounding too early. Keep the full result during the calculation, then round the final answer.
Mph to Knots conversion table
| Mile per Hour | Knot |
|---|---|
| 1 mph | 0.8689762419 kn |
| 5 mph | 4.3448812095 kn |
| 10 mph | 8.689762419 kn |
| 25 mph | 21.7244060475 kn |
| 50 mph | 43.448812095 kn |
| 100 mph | 86.8976241901 kn |
How to convert knots to mph
To reverse the conversion, switch the two units in the calculator or open the reverse conversion page: knots to mph.
Reversing the units is useful when you already have a value in knots and need the equivalent value in miles per hour.
How to use this mph to knots converter
- Enter the number you want to convert in the value field.
- Confirm that the from unit is Mile per Hour and the to unit is Knot.
- Read the converted result in the result box.
- Use the copy button if you want to paste the answer elsewhere.
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FAQ
What is the formula for mph to knots?
The formula is: knots = miles per hour / 1.15077944802.
How do I convert mph to knots by hand?
Write down the value in miles per hour, apply the formula, and round the final result in knots.
How accurate is this converter?
The converter uses standard conversion factors and shows rounded results for readability.
Can I reverse the conversion?
Yes. Use the swap button in the converter or open the related reverse conversion page.
Why do results sometimes have many decimal places?
Some unit conversions do not produce short decimal values. Keep more decimal places for technical work, and round the answer for everyday use.