Square Centimeter to Square Kilometer Conversion Calculator: Free Online Tool

Convert square centimeters to square kilometers with our free online area converter.

From:

Square Centimeter

To:

Square Kilometer

How to Use the Calculator:

Enter the value you want to convert in the 'From' field (Square Centimeter).
The converted value in Square Kilometer will appear automatically in the 'To' field.
Use the dropdown menus to select different units within the Area category.
Click the swap button (⇌) to reverse the conversion direction.

How to Convert Square Centimeter to Square Kilometer

Converting Square Centimeter to Square Kilometer involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

1 Square Centimeter = 1.0000e-10 square kilometers

Example Calculation:

Convert 10 square centimeters: 10 × 1.0000e-10 = 1.0000e-9 square kilometers

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

What is a Square Centimeter and a Square Kilometer?

The square centimeter (symbol: cm²) is a unit of area in the metric system. It represents the area of a square with sides that are each one centimeter long.

The square kilometer (symbol: km²) is a decimal multiple of the SI unit of area, the square meter. It represents the area of a square with sides that are each one kilometer long (1 km² = 1,000,000 m²).

Note: The Square Centimeter is part of the metric (SI) system, primarily used globally in science and trade. The Square Kilometer belongs to the metric (SI) system.

History of the Square Centimeter and Square Kilometer

Derived directly from the centimeter (one-hundredth of a meter), the square centimeter became a standard small-scale unit of area with the adoption of the metric system during the French Revolution. It provides a finer measurement than the square meter for smaller objects.

As a multiple of the square meter, the square kilometer came into use alongside the metric system for measuring large areas like land masses, cities, and countries. Its adoption followed the establishment of the kilometer as a standard unit of distance.

Common Uses for square centimeters and square kilometers

Explore the typical applications for both Square Centimeter (metric) and Square Kilometer (metric) to understand their common contexts.

Common Uses for square centimeters

Science: Measuring the surface area of small samples, cross-sectional areas in biology or material science.
Medical Imaging: Often used to measure the area of lesions, organs, or specific regions in scans (e.g., MRI, CT).
Education: Used in geometry problems and science experiments for teaching area concepts at a smaller scale.
Manufacturing: Specifying the area of small components or surface features.

Common Uses for square kilometers

Geography & Cartography: Standard unit for measuring the land area of cities, regions, countries, and continents.
Demographics: Used to calculate population density (people per km²).
Environmental Science: Measuring the extent of forests, deserts, lakes, or areas affected by environmental changes (e.g., deforestation, wildfires).
Urban Planning: Assessing land use and zoning areas within large municipalities.

Frequently Asked Questions

Questions About Square Centimeter (cm²)

How many square millimeters are in a square centimeter?

There are 100 square millimeters (mm²) in one square centimeter (10 mm x 10 mm).

How many square centimeters are in a square meter?

There are 10,000 square centimeters in one square meter (100 cm x 100 cm).

How many square inches are in a square centimeter?

One square centimeter is approximately 0.155 square inches.

Is cm² commonly used for large areas?

No, cm² is used for very small areas. Square meters (m²) or hectares (ha) are used for larger land or floor areas.

About Square Kilometer (km²)

How many square meters are in a square kilometer?

There are 1,000,000 square meters in one square kilometer (1 km x 1 km = 1000 m x 1000 m).

How many square miles are in a square kilometer?

One square kilometer is approximately 0.3861 square miles.

Is km² used for small areas?

No, it's generally used for very large areas like cities or countries. Square meters, hectares, or acres are used for smaller plots.

Is km² an official SI unit?

While based on the SI unit meter, the official SI derived unit for area is the square meter (m²). However, the square kilometer is a standard metric unit widely accepted for use with SI.

Conversion Table: Square Centimeter to Square Kilometer

Square Centimeter (cm²)	Square Kilometer (km²)
1	0
5	0
10	0
25	0
50	0
100	0
500	0
1,000	0

All Area Conversions

Square Meter to Square Kilometer Square Meter to Square Centimeter Square Meter to Square Millimeter Square Meter to Square Inch Square Meter to Square Foot Square Meter to Square Yard Square Meter to Square Mile Square Meter to Acre Square Meter to Hectare Square Kilometer to Square Meter Square Kilometer to Square Centimeter Square Kilometer to Square Millimeter Square Kilometer to Square Inch Square Kilometer to Square Foot Square Kilometer to Square Yard Square Kilometer to Square Mile Square Kilometer to Acre Square Kilometer to Hectare Square Centimeter to Square Meter Square Centimeter to Square Millimeter Square Centimeter to Square Inch Square Centimeter to Square Foot Square Centimeter to Square Yard Square Centimeter to Square Mile Square Centimeter to Acre Square Centimeter to Hectare Square Millimeter to Square Meter Square Millimeter to Square Kilometer Square Millimeter to Square Centimeter Square Millimeter to Square Inch Square Millimeter to Square Foot Square Millimeter to Square Yard Square Millimeter to Square Mile Square Millimeter to Acre Square Millimeter to Hectare Square Inch to Square Meter Square Inch to Square Kilometer Square Inch to Square Centimeter Square Inch to Square Millimeter Square Inch to Square Foot Square Inch to Square Yard Square Inch to Square Mile Square Inch to Acre Square Inch to Hectare Square Foot to Square Meter Square Foot to Square Kilometer Square Foot to Square Centimeter Square Foot to Square Millimeter Square Foot to Square Inch Square Foot to Square Yard Square Foot to Square Mile Square Foot to Acre Square Foot to Hectare Square Yard to Square Meter Square Yard to Square Kilometer Square Yard to Square Centimeter Square Yard to Square Millimeter Square Yard to Square Inch Square Yard to Square Foot Square Yard to Square Mile Square Yard to Acre Square Yard to Hectare Square Mile to Square Meter Square Mile to Square Kilometer Square Mile to Square Centimeter Square Mile to Square Millimeter Square Mile to Square Inch Square Mile to Square Foot Square Mile to Square Yard Square Mile to Acre Square Mile to Hectare Acre to Square Meter Acre to Square Kilometer Acre to Square Centimeter Acre to Square Millimeter Acre to Square Inch Acre to Square Foot Acre to Square Yard Acre to Square Mile Acre to Hectare Hectare to Square Meter Hectare to Square Kilometer Hectare to Square Centimeter Hectare to Square Millimeter Hectare to Square Inch Hectare to Square Foot Hectare to Square Yard Hectare to Square Mile Hectare to Acre