Knots to mph
Convert knots to mph instantly, with a reference table.
Knots to mph at a glance
Knots to mph is a free online converter you can use right now to convert knots to mph instantly, with a reference table โ no account, no install and no usage limit. It runs entirely inside your browser, so whatever you enter stays on your own device.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required
- Where it runs
- In your browser โ nothing is uploaded to a server
- Works on
- Chrome, Safari, Firefox and Edge โ desktop, tablet and phone
- Category
- Unit Conversions
Knots to mph conversion table
| Knots (kn) | mph (mph) |
|---|---|
| 1 kn | 1.150779 mph |
| 2 kn | 2.301559 mph |
| 3 kn | 3.452338 mph |
| 5 kn | 5.753897 mph |
| 10 kn | 11.507793 mph |
| 25 kn | 28.769484 mph |
| 50 kn | 57.538967 mph |
| 100 kn | 115.07793 mph |
| 500 kn | 575.38967 mph |
| 1000 kn | 1,150.7793 mph |
About Knots to mph
Convert knots to mph instantly, with a reference table of common values. The factor is exact: 1 kn = 1.150779349 mph.
The same relation for a US or UK audience โ interpreting a reported aircraft or vessel speed in the miles per hour used on the road.
A knot is one nautical mile per hour. The name comes from the practice of measuring a ship's speed by paying out a rope with knots tied at regular intervals and counting how many passed in a timed interval. It is the speed unit of shipping and aviation worldwide. Because it derives from the nautical mile, it relates directly to latitude on a chart. A cruising airliner travels at around 500 knots, and a knot is about 1.85 km/h.
Worked through with real numbers: 10 kn is 11.508 mph, 50 kn is 57.539 mph, 100 kn is 115.078 mph.
As for the other side of the conversion: A typical US highway limit is 65 to 70 mph, and a UK motorway limit is 70 mph.
Every speed unit is a distance divided by a time, so converting between them means converting the distance and the time together. That is why the factors are less memorable than simple length conversions.
How to use Knots to mph
- Enter the number of knots you want to convert.
- The equivalent in mph appears instantly โ there is no button to press.
- Check the reference table for common Knots to mph values.
Frequently asked questions
How do I convert knots to mph?
Multiply your knots figure by 1.150779349 to get mph โ or type a value above and read the answer straight off.
How many mph are in one knot?
1 kn = 1.150779349 mph.
When would I need to convert knots to mph?
The same relation for a US or UK audience โ interpreting a reported aircraft or vessel speed in the miles per hour used on the road.
What is a knot, exactly?
A knot is one nautical mile per hour. The name comes from the practice of measuring a ship's speed by paying out a rope with knots tied at regular intervals and counting how many passed in a timed interval. A cruising airliner travels at around 500 knots, and a knot is about 1.85 km/h.
Where is the mph actually used?
It is the road speed unit of the United States and the United Kingdom, and is used for wind speed in American weather reporting. A typical US highway limit is 65 to 70 mph, and a UK motorway limit is 70 mph.
Is there anything tricky about speed conversions?
Every speed unit is a distance divided by a time, so converting between them means converting the distance and the time together. That is why the factors are less memorable than simple length conversions.
Is this converter accurate?
Yes. It uses the exact standard factor of 1 kn = 1.150779349 mph, and the conversion runs in your browser so nothing is uploaded.