Online calculator to convert square kilometers to square miles (km2 to mi2) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Area units.
Conversion Calculator
Enter your value in the conversion calculator below.
Convert km2 to mi2
TIP: If the result of your conversion is 0, try increasing the "Decimals".
Conversion Definitions
The following is a list of definitions relating to conversions between square kilometers and square miles.
What is a square kilometer (km2)?
A square kilometer is a unit of area in the Metric System. The symbol for square kilometer is km2. There are 2.58998811 square kilometers in a square mile. A square kilometer is calculated as the area of a square that has 1 kilometer on each side. The International spelling for this unit is square kilometre.
What is a square mile (mi2)?
A square mile is a unit of area in both US Customary Units as well as the Imperial System. The symbol for square mile is mi2 or sq mi. There are 0.38610216 square miles in a square kilometer. A square mile is calculated as the area of a square that has 1 mile on each side.
Conversion Formula
Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from km2 to mi2 is:
mi2 = km2 ÷ 2.58998811
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from square kilometers to square miles (km2 to mi2).
Square Kilometer to Square Miles Conversion Example
Task: Convert 50 square kilometers to square miles (show work) Formula: km2 ÷ 2.58998811 = mi2 Calculations: 50 km2 ÷ 2.58998811 = 19.30510793 mi2 Result: 50 km2 is equal to 19.30510793 mi2
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from km2 to mi2.
Square Kilometers to Square Miles Conversion Chart
| square kilometers (km2) | square miles (mi2) |
|---|---|
| 1 km2 | 0.38610216 mi2 |
| 2 km2 | 0.77220432 mi2 |
| 3 km2 | 1.15830648 mi2 |
| 4 km2 | 1.54440863 mi2 |
| 5 km2 | 1.93051079 mi2 |
| 6 km2 | 2.31661295 mi2 |
| 7 km2 | 2.70271511 mi2 |
| 8 km2 | 3.08881727 mi2 |
| 9 km2 | 3.47491943 mi2 |
| 10 km2 | 3.86102159 mi2 |
| 20 km2 | 7.72204317 mi2 |
| 30 km2 | 11.58306476 mi2 |
| 40 km2 | 15.44408634 mi2 |
| 50 km2 | 19.30510793 mi2 |
| 75 km2 | 28.95766189 mi2 |
| 100 km2 | 38.61021586 mi2 |
| 250 km2 | 96.52553965 mi2 |
| 500 km2 | 193.0510793 mi2 |
| 750 km2 | 289.57661894 mi2 |
| 1,000 km2 | 386.10215859 mi2 |
| 2,500 km2 | 965.25539648 mi2 |
| 5,000 km2 | 1,930.51079296 mi2 |
| 7,500 km2 | 2,895.76618944 mi2 |
| 10,000 km2 | 3,861.02158593 mi2 |
| 25,000 km2 | 9,652.55396481 mi2 |
| 50,000 km2 | 19,305.10792963 mi2 |
| 75,000 km2 | 28,957.66189444 mi2 |
| 100,000 km2 | 38,610.21585925 mi2 |
| 250,000 km2 | 96,525.53964813 mi2 |
Related Units
This table provides a summary of the Area units within their respective measurement systems.
| Unit | Symbol | Measurement System |
|---|---|---|
| square inches | in2 or sq in | US Customary Units/Imperial System |
| square feet | ft2 or sq ft | US Customary Units/Imperial System |
| square yards | yd2 or sq yd | US Customary Units/Imperial System |
| acres | ac | US Customary Units/Imperial System |
| square miles | mi2 or sq mi | US Customary Units/Imperial System |
| square millimeters | mm2 | Metric System |
| square centimeters | cm2 | Metric System |
| square decimeters | dm2 | Metric System |
| square meters | m2 | Metric System |
| square decameters | dam2 | Metric System |
| square hectometers | hm2 | Metric System |
| hectares | ha | Metric System |
| square kilometers | km2 | Metric System |
Note: For area conversions, US Customary Units and the Imperial System are equivalent.
Advertisements