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km to mi

Formula: Length in miles (mi) = Length in kilometers (km) × 0.621371




mi to km

Formula: Length in kilometers (km) = Length in miles (mi) ÷ 0.621371




Conversion Factors:

  • Kilometers to Miles: 1 kilometer = 0.621371 miles
  • Miles to Kilometers: 1 mile = 1.60934 kilometers

How to Convert Kilometers to Miles:

To convert kilometers to miles, multiply the number of kilometers by 0.621371.


Example: Convert 5 kilometers to miles.

Miles=5×0.621371=3.106855 miles

How to Convert Miles to Kilometers:

To convert miles to kilometers, multiply the number of miles by 1.60934.


Example: Convert 3 miles to kilometers.

Kilometers=3×1.60934=4.82802 kilometers

Kilometers to Miles

Kilometers to Miles Conversion Table

Kilometers (km)Miles (mi)
1 km0.621 mi
2 km1.243 mi
3 km1.864 mi
4 km2.485 mi
5 km3.107 mi
6 km3.728 mi
7 km4.350 mi
8 km4.971 mi
9 km5.592 mi
10 km6.213 mi
20 km12.427 mi
30 km18.641 mi
40 km24.855 mi
50 km31.069 mi
60 km37.282 mi
70 km43.496 mi
80 km49.710 mi
90 km55.924 mi
100 km62.137 mi

km to mi Conversion Chart

km to mi Conversion Chart

Miles to Kilometers Conversion Table

Miles (mi)Kilometers (km)
1 mi1.609 km
2 mi3.218 km
3 mi4.827 km
4 mi6.437 km
5 mi8.046 km
6 mi9.656 km
7 mi11.265 km
8 mi12.875 km
9 mi14.484 km
10 mi16.093 km
20 mi32.187 km
30 mi48.280 km
40 mi64.374 km
50 mi80.467 km
60 mi96.561 km
70 mi112.654 km
80 mi128.748 km
90 mi144.841 km
100 mi160.934 km

mi to km Conversion Chart

mi to km Conversion Chart

Difference Between Kilometers to Miles

AspectKilometers (km)Miles (mi)
Unit TypeMetric system unitImperial system unit
UsageCommonly used globally except in the USAPrimarily used in the USA, UK, and a few others
Conversion Factor1 kilometer equals approximately 0.621 miles1 mile equals approximately 1.609 kilometers
PrecisionGenerally used for broader, less precise measuresOften used for more precise, smaller measures
Contexts UsedPopular in scientific research, global travelCommon in personal travel, local distances in US
Decimal SystemPart of the decimal-based metric systemNot based on a decimal system
Physical RepresentationLess tangible due to larger sizeMore tangible and frequently visualized
Cultural PreferencePreferred in international and scientific contextsCommon in everyday life and literature in the US.

1. Solved Examples on Converting Kilometers to Miles

Example 1: Convert 3 kilometers to miles.

3 km=3×0.621371 mi=1.864113 mi

Example 2: Convert 10 kilometers to miles.

10 km=10×0.621371 mi=6.21371 mi

Example 3: Convert 0.5 kilometers to miles.

0.5 km=0.5×0.621371 mi=0.310686 mi

Example 4: Convert 15 kilometers to miles.

15 km=15×0.621371 mi=9.320565 mi

Example 5: Convert 25 kilometers to miles.

25 km=25×0.621371 mi=15.534275 mi

2. Solved Examples on Converting Miles to Kilometers

Example 1: Convert 1 mile to kilometers.

1 mi=1×1.60934 km=1.60934 km

Example 2: Convert 5 miles to kilometers.

5 mi=5×1.60934 km=8.0467 km

Example 3: Convert 12 miles to kilometers.

12 mi=12×1.60934 km=19.31208 km

Example 4: Convert 0.3 miles to kilometers.

0.3 mi=0.3×1.60934 km=0.482802 km

Example 5: Convert 20 miles to kilometers.

20 mi=20×1.60934 km=32.1868 km

1. How accurate is the kilometers to miles conversion?

The conversion is quite accurate when using the standard factor of 0.621371. For most practical purposes, this level of precision is sufficient.

2. What is a common mistake to avoid when converting kilometers to miles?

A common mistake to avoid is reversing the conversion factor. Remember, the correct factor for converting kilometers to miles is 0.621371, not the other way around.

3. Can I use this conversion for scientific calculations?

Yes, the kilometers to miles conversion can be used for scientific calculations, especially in disciplines like geology and environmental science that often involve large geographic distances where both metric and imperial units are used.

4. How often do runners need to convert kilometers to miles?

Runners frequently convert kilometers to miles, especially when participating in races or using apps that track distances in a different unit than they are accustomed to.

5. How do weather reports handle kilometers and miles?

Weather reports in different countries will use the unit customary to their system; however, many online platforms provide options to display distances in either kilometers or miles.