Kilometers to Miles Converter

About the Kilometers to Miles Converter

Convert kilometers (km) to miles (mi) instantly. Includes the exact conversion factor, formula and a quick reference table.

Also known as: km to mi, Kilometers to Miles, convert Kilometers to Miles, km to mi, kilometers to miles, km to mi.

How to use this calculator

1. Enter value in kilometers.
2. The result updates instantly as you type — press Calculate (or Enter) at any time.
3. Open “Step-by-step” to see how the answer was worked out.
4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

Worked example

Using the values pre-filled in the calculator above:

• Value in kilometers = 5 km

the calculator returns:

• Miles: 3.106856 mi
• Nanometers: 5,000,000,000,000 nm
• Micrometers: 5,000,000,000 µm
• Millimeters: 5,000,000 mm

Working

1. 5 km × 0.6213711922 = 3.10685596 mi