Convert square cm to square km

Conversion Calculator

Enter your value in the conversion calculator below.

Convert cm² to km²

TIP: If the result of your conversion is 0, try increasing the "Decimals".

How to convert cm² to km²: Enter a value in the cm² field and click on the "Calculate square km" button. Your answer will appear in the km² field.

Conversion Definitions

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

What is a square centimeter (cm²)?

A square centimeter is a unit of area in the Metric System. The symbol for square centimeter is cm². There are 10,000,000,000 square centimeters in a square kilometer. A square centimeter is calculated as the area of a square that has 1 centimeter on each side. The International spelling for this unit is square centimetre.

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 0.0000000001 square kilometers in a square centimeter. 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.

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 cm² to km² is:

km² = cm² ÷ 10,000,000,000

Conversion Example

Next, let's look at an example showing the work and calculations that are involved in converting from square centimeters to square kilometers (cm² to km²).

Square Centimeter to Square Kilometer Conversion Example

Task: Convert 3,500,000,000 square centimeters to square kilometers (show work)

Formula:
cm² ÷ 10,000,000,000 = km²

Calculations:
3,500,000,000 cm² ÷ 10,000,000,000 = 0.35 km²

Result:
3,500,000,000 cm² is equal to 0.35 km²

Conversion Table

For quick reference purposes, below is a conversion table that you can use to convert from cm² to km².

Square Centimeters to Square Kilometers Conversion Chart

square centimeters (cm²)	square kilometers (km²)
100 cm²	0.00000001 km²
250 cm²	0.000000025 km²
500 cm²	0.00000005 km²
750 cm²	0.000000075 km²
1,000 cm²	0.0000001 km²
2,500 cm²	0.00000025 km²
5,000 cm²	0.0000005 km²
7,500 cm²	0.00000075 km²
10,000 cm²	0.000001 km²
25,000 cm²	0.0000025 km²
50,000 cm²	0.000005 km²
75,000 cm²	0.0000075 km²
100,000 cm²	0.00001 km²
250,000 cm²	0.000025 km²
500,000 cm²	0.00005 km²
750,000 cm²	0.000075 km²
1,000,000 cm²	0.0001 km²
2,500,000 cm²	0.00025 km²
5,000,000 cm²	0.0005 km²
7,500,000 cm²	0.00075 km²
10,000,000 cm²	0.001 km²
25,000,000 cm²	0.0025 km²
50,000,000 cm²	0.005 km²
75,000,000 cm²	0.0075 km²
100,000,000 cm²	0.01 km²
250,000,000 cm²	0.025 km²
500,000,000 cm²	0.05 km²
750,000,000 cm²	0.075 km²
1,000,000,000 cm²	0.1 km²

Related Units

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

Unit	Symbol	Measurement System	Description
square inches	in² or sq in	US Customary Units/Imperial System	1,296 in² = 1 yd²
square feet	ft² or sq ft	US Customary Units/Imperial System	1 ft² = 144 in²
square yards	yd² or sq yd	US Customary Units/Imperial System	1 yd² = 9 ft²
acres	ac	US Customary Units/Imperial System	1 ac = 4,840 yd²
square miles	mi² or sq mi	US Customary Units/Imperial System	1 mi² = 640 ac
square millimeters	mm²	Metric System	1 m² = 1,000,000 mm²
square centimeters	cm²	Metric System	1 m² = 10,000 cm²
square decimeters	dm²	Metric System	1 m² = 100 dm²
square meters	m²	Metric System	base unit
square decameters	dam²	Metric System	1 dam² = 100 m²
square hectometers	hm²	Metric System	1 hm² = 10,000 m²
hectares	ha	Metric System	1 ha = 10,000 m²
square kilometers	km²	Metric System	1 km² = 1,000,000 m²

Note: For area conversions, US Customary Units and the Imperial System are equivalent.

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Convert square cm to square km - Area Conversions