Square Kilometer to Hectare Conversion Calculator: Free Online Tool

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

From:

Square Kilometer

To:

Hectare

How to Use the Calculator:

Enter the value you want to convert in the 'From' field (Square Kilometer).
The converted value in Hectare 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 Kilometer to Hectare

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

Formula:

1 Square Kilometer = 100 hectares

Example Calculation:

Convert 10 square kilometers: 10 × 100 = 1000 hectares

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 Kilometer and a Hectare?

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).

The hectare (symbol: ha) is a metric unit of area defined as 10,000 square meters (100 m x 100 m), and primarily used in the measurement of land.

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

History of the Square Kilometer and Hectare

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.

Introduced during the French Revolution with the original metric system in 1795, the hectare provided a convenient metric unit for land measurement, larger than the square meter but smaller than the square kilometer. It gained widespread international acceptance, particularly with the adoption of the SI system, becoming the standard for land sales and management in many countries.

Common Uses for square kilometers and hectares

Explore the typical applications for both Square Kilometer (metric) and Hectare (imperial/US) to understand their common contexts.

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.

Common Uses for hectares

Land Measurement (Global Metric): The primary unit for selling and managing land, especially agricultural land, forestry, and large real estate plots, in most countries worldwide using the metric system.
Agriculture & Forestry: Standard unit for reporting crop yields, farm sizes, and forest areas.
Urban Planning: Measuring parks, large developments, and zoning areas.
Environmental Management: Quantifying the area of conservation zones or affected land areas.

Frequently Asked Questions

Questions 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.

About Hectare (ha)

How many square meters are in a hectare?

There are exactly 10,000 square meters in one hectare.

How many acres are in a hectare?

One hectare is equal to approximately 2.471 acres.

How many hectares are in a square kilometer?

There are 100 hectares in one square kilometer (since 1 km² = 1,000,000 m² and 1 ha = 10,000 m²).

Is the hectare an official SI unit?

While not technically an SI unit (the SI unit of area is the square meter), the hectare is accepted for use with the International System of Units (SI) and is the standard metric unit for land area globally.

Conversion Table: Square Kilometer to Hectare

Square Kilometer (km²)	Hectare (ha)
1	100
5	500
10	1,000
25	2,500
50	5,000
100	10,000
500	50,000
1,000	100,000

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 Centimeter to Square Meter Square Centimeter to Square Kilometer 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