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Kilometers to Miles

Type a value in Kilometers or Miles; the other field updates as you type.

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Swap units

5 km = 3.106856 mi

Decimals

Common values

Kilometers (km)Miles (mi)
1 km0.621371 mi
2 km1.242742 mi
3 km1.864114 mi
4 km2.485485 mi
5 km3.106856 mi
7.5 km4.660284 mi
10 km6.213712 mi
20 km12.427424 mi
30 km18.641136 mi
40 km24.854848 mi
42.195 km26.218757 mi
50 km31.06856 mi
75 km46.602839 mi
100 km62.137119 mi

How to use it

  1. Type the number of Kilometers in the first field.
  2. Read the result in Miles. You can also type in the Miles field to convert the other way.
  3. Use the table of common values, or copy the result with one click.

How it works

Formula: mi = km × 0.62137119

1 km = 0.621371 mi, and 1 mi = 1.609344 km.

Results use the exact definitions of both units. The page shows up to 6 decimal places; copy the value for full precision.

Examples

1 km in mi

1 km = 0.621371 mi, using mi = km × 0.62137119.

5 km in mi

5 km = 3.106856 mi, using mi = km × 0.62137119.

10 km in mi

10 km = 6.213712 mi, using mi = km × 0.62137119.

Frequently asked questions

How do I convert Kilometers to Miles?

Use the formula mi = km × 0.62137119. For example, 1 km = 0.621371 mi.

How do I convert Miles back to Kilometers?

Use the reverse formula km = mi × 1.609344. For example, 1 mi = 1.609344 km.

How accurate is this converter?

It uses the exact legal definitions of the units, so the only rounding is in the number of decimals shown. Copy the result to get the full value.

Privacy

The conversion runs entirely in your browser. Nothing you type is sent anywhere.