Distance Converter

About the Distance Converter

Converts a distance between kilometres, miles, metres, feet, yards and nautical miles using exact conversion factors.

How to use

Enter a value, its unit and the target unit, then click Convert.

Worked example

10 km = 6.214 miles = 5.4 nautical miles.

How to use this calculator

1. Enter the distance value you want to convert.
2. Choose the unit you are converting from.
3. Choose the unit you want to convert to.
4. View the converted result instantly.

The formula explained

• \(d_1\) = starting distance
• \(d_2\) = converted distance
• \(c\) = conversion factor between the two units

Step by step method

1. Type or paste your number into the distance field.
2. Select the source unit, such as km, miles, metres, feet, or nautical miles.
3. Select the target unit you want.
4. Read the converted value shown by the tool.

Worked example

Suppose you want to convert a road trip distance of 12 miles into kilometres.

1. Start with 12 miles.
2. Use the miles to kilometres conversion factor, where 1 mile is about 1.609344 km. Multiply \(12 \times 1.609344\).
3. The calculation gives 19.312128 km, which rounds to 19.31 km.

Tips and common mistakes

• Check that you selected the correct source and target units before reading the result.
• Remember that feet and metres are much smaller units than miles and kilometres, so numbers can change a lot.
• If you need a practical answer, round the result to a sensible number of decimal places.
• For navigation or travel planning, nautical miles are different from regular miles, so do not mix them up.

Frequently asked questions