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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

Mile (mi) is a unit of length in US Customary Units as well as the Imperial System. Kilometer (km) is a unit of length in the Metric System. So when you convert between these units, you are performing a conversion between two units within different measurement systems.

Let's take a closer look at the conversion formulas so that you can do these conversions yourself either 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 mile 1.609344 km
2 miles 3.218688 km
3 miles 4.828032 km
4 miles 6.437376 km
5 miles 8.04672 km
6 miles 9.656064 km
7 miles 11.265408 km
8 miles 12.874752 km
9 miles 14.484096 km
10 miles 16.09344 km
25 miles 40.2336 km
50 miles 80.4672 km
100 miles 160.9344 km
500 miles 804.672 km
1,000 miles 1,609.344 km
5,000 miles 8,046.72 km
10,000 miles 16,093.44 km

Kilometers to Miles Conversion Chart

kilometers (km) miles (mi)
1 km 0.621371192 miles
2 km 1.242742384 miles
3 km 1.864113576 miles
4 km 2.485484768 miles
5 km 3.10685596 miles
6 km 3.728227152 miles
7 km 4.349598344 miles
8 km 4.970969536 miles
9 km 5.592340728 miles
10 km 6.21371192 miles
25 km 15.5342798 miles
50 km 31.0685596 miles
100 km 62.1371192 miles
500 km 310.685596 miles
1,000 km 621.371192 miles
5,000 km 3,106.85596 miles
10,000 km 6,213.71192 miles

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 (and Imperial)  
feet ft or ' US Customary Units (and Imperial) 1 foot = 12 inches
yards yd US Customary Units (and Imperial) 1 yard = 3 feet
miles mi US Customary Units (and Imperial) 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