Unit Converter

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kilometers to miles

Kilometers to miles

Convert kilometers to miles in seconds, which is useful for travel, running and maps.

Conversion factor

1 kilometer equals approximately 0.621371 mile.
The reverse conversion uses 1 mile = 1.609344 kilometers.

km → mi examples

5K run

Input: 5 km
Expected output: 3,106855 mi

Classic race distance.

Short trip

Input: 100 km
Expected output: 62,1371 mi

Useful approximation for maps.

Full tool FAQ

Which unit categories does the tool convert?

There are fourteen categories: length, mass, temperature, data, time, speed, area, pressure, volume, energy, power, angle, frequency and fuel economy. Each one holds several units, from nanometer to nautical mile, from bit to exbibyte, from pascal to atmosphere, and conversion only happens between units of the same kind, because turning meters into seconds makes no sense.

Can I see the value in every unit at the same time?

Why is converting temperature different from converting length?

What is the difference between MB and MiB (decimal vs binary)?

Why are L/100 km and km/L not just a different factor?

Can I type the conversion instead of using the selectors?

Is the data I type sent to any server?

How do I control rounding and scientific notation?

Frequently asked questions

What mental approximation can I use?

Multiply km by 0.62 for a quick estimate.

Is a nautical mile the same?

No. This conversion uses statute miles. Nautical miles are a different unit.

Next steps

From	To
1 km	0.62137119 mi
2 km	1.242742 mi
5 km	3.106856 mi
10 km	6.213712 mi
20 km	12.427424 mi
50 km	31.06856 mi
100 km	62.137119 mi
1,000 km	621.371192 mi

From

1 km

0.62137119 mi

2 km

1.242742 mi

5 km

3.106856 mi

10 km

6.213712 mi

20 km

12.427424 mi

50 km

31.06856 mi

100 km

62.137119 mi

1,000 km

621.371192 mi