Welcome to our knots to mph help page.

We have an online calculator to help you convert knots to miles per hour, lots of worked examples, and clear instructions for how to do the conversion yourself.

Want to practice this skill? Try our printable knots to miles per hour worksheet.

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How It Works

Here is our knots to mph conversion calculator which will help you convert between the two different speeds in knots and miles per hour.

The converter will also show you the formula you need to convert between units.

How It Works...

Step 1) Type in the speed.

Step 2) (Optional) - choose what accuracy you want your answer - the default is 1 decimal place.

Step 3) Click the Convert button and the answer will be displayed.

A knot is a unit of speed. It is equal to 1 nautical mile per hour.

A nautical mile is used to measure distances at sea. It is equal to 1 minute of the Earth's latitude.

It is slightly longer than a 'normal' mile.

1 nautical mile = 1.15078 miles.

So 1 knot = 1.15078 miles per hour.

How to convert knots to mph

To convert an amount from knots to miles per hour, you just need to multiply the amount by 1.151 (to 3dp).

This is because 1 knot = 1.151 miles per hour (to 3dp).

1) Convert 12 knots into miles per hour.

To convert from knots into mph we need to multiply by 1.151.

12 x 1.151 = 13.8 (to 1dp)

So 12 knots is 13.8 mph to 1dp.

2) Convert 25 knots into mph. Give your answer to 1dp.

To convert from knots into mph we need to multiply by 1.151.

25 x 1.151 = 28.775

So 25 knots is 28.8 mph to 1dp.

3) What is 100 knots in mph? Give your answer to the nearest mile per hour.

To convert from knots into mph we need to multiply by 1.151.

100 x 1.151 = 115.1

So 100 knots is 115 mph to the nearest whole.

4) How many miles per hour is 42 knots? Give your answer to 1 decimal place.

To convert from knots into mph we need to multiply by 1.151.

42 x 1.151 = 48.342

So 42 knots is 48.3 mph to 1dp.

Here are some a few quick simple conversion facts from knots to mph.

All the conversions are given to 2dp.

- 1 knot = 1.15 mph
- 10 knots = 11.51 mph
- 15 knots = 17.26 mph
- 20 knots = 23.02 mph
- 25 knots = 28.77 mph
- 30 knots = 34.52 mph
- 40 knots = 46.03 mph
- 50 knots = 57.54 mph
- 60 knots = 69.05 mph
- 80 knots = 92.06 mph
- 100 knots = 115.08 mph
- 120 knots = 138.09 mph
- 140 knots = 161.11 mph
- 160 knots = 184.12 mph
- 180 knots = 207.14 mph
- 200 knots = 230.02 mph
- 1000 knots = 1150.78 mph

Take a look at some more of our resources similar to our mm to inches conversion calculator.

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Every effort has been made to ensure that the Length Conversion calculator on this page is as accurate as possible.

If you wish to double check that the conversion that you wish to make is correct, or if the conversion that you are looking for is not here, use the link below which will open an online conversion checker in a new browsing window.

This online converter deals with many more types of measurement units.

Using the link below will open the onlineconversion checker in a new browswer window.

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