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Convert miles to km, km to miles

Convert miles to km

miles
km

Convert km to miles

km
miles

How to convert miles to km : Use the conversion calculator titled "Convert miles to km". Enter a value in the miles field and click on the "Calculate km" button. Your answer will appear in the km field.

How to convert km to miles : Use the conversion calculator titled "Convert km to miles". Enter a value in the km field and click on the "Calculate miles" button. Your answer will appear in the miles field.

Conversion Formulas

Let's take a closer look at the conversion formulas so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.

The formula to convert from miles to km is:

km = mi x 1.609344

The formula to convert from km to miles is:

mi = km x 0.621371192

Conversion Examples

Next, let's look at some examples showing the work and calculations that are involved in converting between miles (mi) and kilometers (km).

Mile to Kilometer Conversion Example

Task: Convert 5 miles to kilometers (show work)

Formula:
mi x 1.609344 = km

Calculations:
5 mi x 1.609344 = 8.04672 km

Result:
5 mi is equal to 8.04672 km

Kilometer to Mile Conversion Example

Task: Convert 15 kilometers to miles (show work)

Formula:
km x 0.621371192 = mi

Calculations:
15 km x 0.621371192 = 9.32056788 mi

Result:
15 km is equal to 9.32056788 mi

Conversion Tables

For quick reference purposes, below are conversion tables that you can use to convert from miles to km, and km to miles.

Miles to Kilometers Conversion Chart

miles (mi) kilometers (km)
1 mi1.609344 km
2 mi3.218688 km
3 mi4.828032 km
4 mi6.437376 km
5 mi8.04672 km
6 mi9.656064 km
7 mi11.265408 km
8 mi12.874752 km
9 mi14.484096 km
10 mi16.09344 km
20 mi32.18688 km
30 mi48.28032 km
40 mi64.37376 km
50 mi80.4672 km
75 mi120.7008 km
100 mi160.9344 km
250 mi402.336 km
500 mi804.672 km
750 mi1,207.008 km
1,000 mi1,609.344 km

Kilometers to Miles Conversion Chart

kilometers (km) miles (mi)
1 km0.621371192 mi
2 km1.242742384 mi
3 km1.864113576 mi
4 km2.485484768 mi
5 km3.10685596 mi
6 km3.728227152 mi
7 km4.349598344 mi
8 km4.970969536 mi
9 km5.592340728 mi
10 km6.21371192 mi
20 km12.42742384 mi
30 km18.64113576 mi
40 km24.85484768 mi
50 km31.0685596 mi
75 km46.6028394 mi
100 km62.1371192 mi
250 km155.342798 mi
500 km310.685596 mi
750 km466.028394 mi
1,000 km621.371192 mi

Conversion Definitions

The following is a list of definitions relating to conversions between miles and kilometers.

What is a mile (mi)?

A mile is a unit of length in both US Customary Units as well as the Imperial System. The symbol for mile is mi. There are 1,760 yards in a mile or 5,280 feet in a mile.

What is a kilometer (km)?

A kilometer is a unit of length in the Metric System. The symbol for kilometer is km. There are 1,000 meters in a kilometer. The International spelling is kilometre.

How many miles in a kilometer?

There are 0.621371192 miles in a kilometer.

How many kilometers in a mile?

There are 1.609344 kilometers in a mile.

Understanding the Length Units

This table provides a summary of the Length units within their respective measurement systems.

Unit Symbol Measurement System Description
inches in or " US Customary Units/Imperial System  
feet ft or ' US Customary Units/Imperial System 1 foot = 12 inches
yards yd US Customary Units/Imperial System 1 yard = 3 feet
miles mi US Customary Units/Imperial System 1 mile = 1760 yards or 5280 feet
millimeter mm Metric System 1000 mm = 1 m
centimeter cm Metric System 100 cm = 1 m, 1 cm = 10 mm
decimeter dm Metric System 10 dm = 1 m, 1 dm = 10 cm
meter m Metric System 1 m = 1000 mm, 100 cm, 10 dm
kilometer km Metric System 1 km = 1000 m