Kilometers to miles table: conversions from 1 to 100 km

Kilometers to miles table

The following table converts common distances from kilometers (km) to statute miles (mi). The results are approximate and rounded to two decimal places.

For a value that is not in the table, use the kilometers-to-miles converter. You can select from zero to five displayed decimal places.

Miles to kilometers table

This table shows the reverse conversion. It also uses international statute miles, not nautical miles.

The UK Highway Code publishes a road conversion table that uses the same rounding approach for distances such as 1, 5, 10, 30, 50 and 60 miles.

Race distance conversions

Popular race distances are often expressed in kilometers, while some apps, training plans and events use miles. These are the equivalents:

World Athletics sets the marathon distance at 42.195 km, equivalent to 26 miles and 385 yards. A half marathon is exactly half that distance: 21.0975 km.

These figures convert distance, not pace. The guide to pace per kilometer and pace per mile explains the difference.

Road distance conversions

When a route, sign or direction uses miles, this table provides a quick reference:

For longer routes originally stated in kilometers:

These equivalents help interpret a route, but they do not convert speed limits. A distance of 50 mi equals 80.47 km; a speed of 50 mph is a different quantity and must be written as 80.47 km/h.

How these values are calculated

NIST publishes the factor:

1 mi = 1.609344 km

To convert kilometers to miles:

miles = kilometers / 1.609344

To convert miles to kilometers:

kilometers = miles × 1.609344

For example:

30 km / 1.609344 = 18.641135... mi ≈ 18.64 mi
30 mi × 1.609344 = 48.28032 km ≈ 48.28 km

The approximation is applied only to the displayed result. If you will reuse the value in another operation, retain more decimal places and round at the end. The guide to converting kilometers to miles explains the process and precision choices in more detail.

Check any distance

Tables are useful for common values, but they cannot cover every possible trip. With the kilometers-to-miles calculator, you can:

• convert in either direction;
• enter values such as 42.195 km or 26.2 mi;
• display from zero to five decimal places;
• copy or share the result;
• review the formula used.

Frequently asked questions

How many miles are 5 kilometers?

Five kilometers is approximately 3.11 mi.

How many miles are 10 kilometers?

Ten kilometers is approximately 6.21 mi.

How many kilometers are 50 miles?

Fifty statute miles equals 80.4672 km, or 80.47 km rounded to two decimal places.

How many miles are in a marathon?

A marathon is 42.195 km, which is approximately 26.22 mi. It is also commonly stated as 26 miles and 385 yards.

Are the table values exact?

The factor 1 mi = 1.609344 km is used to calculate them, but the displayed figures are rounded to two decimal places. They should therefore be read as approximations.