Convert Hectares (ha) to Square Kilometers (km²)

1 hectare equals 0.01 square kilometers.

Formula: km² = ha × 0.01

Hectare to Square Kilometer Converter

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How to Convert Hectare to Square Kilometer

1 hectare = 0.01 square kilometers

Square Kilometer = Hectare × 0.01

Example: 1 ha × 0.01 = 0.01 km²

Reverse Conversion

To convert square kilometers back to hectares:

  • Remember, 1 square kilometer equals 100 hectares.
  • To convert 0.01 km² to ha, multiply 0.01 x 100, resulting in 1 ha.

Common Hectare to Square Kilometer Conversions

Hectare to Square Kilometer (Part 1)
Hectare Square Kilometer Actions
1 hectare 0.01 square kilometers
5 hectares 0.05 square kilometers
10 hectares 0.1 square kilometers
25 hectares 14 square kilometers
Hectare to Square Kilometer (Part 2)
Hectare Square Kilometer Actions
50 hectares 12 square kilometers
100 hectares 1 square kilometer
500 hectares 5 square kilometers
1000 hectares 10 square kilometers

Hectares to square kilometers Conversion Table

Reference table with common hectares to square kilometers conversions. All values calculated with high precision.

Hectares to Square Kilometers Table
0.01 to 50

Hectares Square kilometers Actions
0.01 ha 0.0001 km²
0.025 ha 0.00025 km²
0.05 ha 0.0005 km²
0.1 ha 0.001 km²
14 ha 0.0025 km²
12 ha 0.005 km²
1 ha 0.01 km²
12 ha 0.025 km²
5 ha 0.05 km²
10 ha 0.1 km²
25 ha 14 km²
50 ha 12 km²

Hectares to Square Kilometers Table
100 to 10000000

Hectares Square kilometers Actions
100 ha 1 km²
250 ha 12 km²
500 ha 5 km²
1000 ha 10 km²
2500 ha 25 km²
5000 ha 50 km²
10000 ha 100 km²
25000 ha 250 km²
50000 ha 500 km²
100000 ha 1000 km²
250000 ha 2500 km²
500000 ha 5000 km²
1000000 ha 10000 km²
2500000 ha 25000 km²
5000000 ha 50000 km²
10000000 ha 100000 km²

Square Kilometers to Hectares Table
0.0001 to 12

Square kilometers Hectares Actions
0.0001 km² 0.01 ha
0.00025 km² 0.025 ha
0.0005 km² 0.05 ha
0.001 km² 0.1 ha
0.0025 km² 14 ha
0.005 km² 12 ha
0.01 km² 1 ha
0.025 km² 12 ha
0.05 km² 5 ha
0.1 km² 10 ha
14 km² 25 ha
12 km² 50 ha

Square Kilometers to Hectares Table
1 to 100000

Square kilometers Hectares Actions
1 km² 100 ha
12 km² 250 ha
5 km² 500 ha
10 km² 1000 ha
25 km² 2500 ha
50 km² 5000 ha
100 km² 10000 ha
250 km² 25000 ha
500 km² 50000 ha
1000 km² 100000 ha
2500 km² 250000 ha
5000 km² 500000 ha
10000 km² 1000000 ha
25000 km² 2500000 ha
50000 km² 5000000 ha
100000 km² 10000000 ha

Definition of Hectare

Definition

ha — The hectare is a metric unit of area equal to exactly 10,000 square meters, or equivalently 100 ares. It represents the area of a square with sides of 100 meters.

The hectare is accepted for use with the International System of Units (SI) and is listed in the BIPM SI Brochure as a non-SI unit whose use is expected to continue indefinitely. It is the primary unit for reporting land area in most countries worldwide.

In agriculture, forestry, urban planning, and environmental science, the hectare serves as the standard measure for expressing the extent of land parcels, forests, and protected areas.

Exact factor
1 ha = 10,000 m²
Examples
  • 2.5 ha = 6.1776 ac
  • 0.75 ha = 1.8533 ac
  • 0.68 ha = 1.6803 ac

Definition of Square Kilometer

Definition

km² — The square kilometer is an SI-derived unit of area equal to exactly 1,000,000 m² (one million square meters). It represents the area of a square with sides of 1 kilometer.

The square kilometer is the standard unit for expressing large geographic areas such as countries, states, cities, lakes, national parks, and ecological regions. It is used globally in geography, cartography, and environmental science.

One square kilometer equals exactly 100 hectares or 10,000 ares. These relationships are exact because all three units are defined as powers of ten of the square meter.

Exact factor
1 km² = 1,000,000 m²
Examples
  • 5,300 km² = 5,300,000,000
  • 5,300 km² = 57,048,725,209 ft²
  • 39 km² = 15.058 mi²

About the Hectare

Facts & Uses

  • 1 hectare = 10,000 m² = 0.01 km² exactly. The practical metric unit for land and agricultural areas — 100 m × 100 m square.
  • Standard for agriculture worldwide outside the US: crop yields (tonnes/ha), farm sizes, vineyards, orchards, ranches.
  • Used in forestry (timber harvest tracking), land conservation (protected areas), and European real estate (rural and large estates).
  • Reference: a football pitch (FIFA standard) is about 0.7 hectares; a square 100 m on each side = 1 hectare exactly.

Curiosities

  • The hectare is not part of the SI, but accepted for use with it — like the liter, it persists because of its convenient scale for everyday land measurement.
  • A typical US suburban lot (1/4 acre) is about 0.1 hectare; a French vineyard for fine wine averages 5-15 hectares.
  • The EU Common Agricultural Policy (CAP) distributes agricultural subsidies primarily on a per-hectare basis — making it the unit of European farm economics.
  • Approximate equivalents: 1 hectare ≈ 2.4711 acres = 10,000 m² = 0.00386 mi².

Sources

About the Square Kilometer

Facts & Uses

  • 1 km² = 1,000,000 m² exactly = 100 hectares. The metric unit for large geographic areas: cities, countries, lakes, forests.
  • Standard in geography (country and region sizes), environmental science (deforestation, conservation areas), and urban planning.
  • Used in satellite imagery analysis, land use statistics, and population density (people per km²).
  • Reference scales: 1 km² ≈ small village, 100 km² ≈ small town, 1000 km² ≈ large metropolitan core, 1,000,000 km² ≈ medium-sized country.

Curiosities

  • Vatican City is the smallest country at 0.49 km²; Russia is the largest at over 17 million km². Earth's total surface is about 510 million km² (71% ocean).
  • The Amazon rainforest covers approximately 5.5 million km² across nine countries — about the size of the contiguous US west of the Mississippi.
  • Population density extremes: Monaco ~26,000 people/km²; Mongolia ~2 people/km² — a 13,000× difference.
  • Approximate equivalents: 1 km² ≈ 0.386 mi² ≈ 247 acres ≈ 100 hectares.

Sources

Frequently Asked Questions

How many square kilometers are in one hectare?

One hectare equals 0.01 square kilometers. To convert, multiply the hectare value by 0.01. For the reverse, divide the square kilometer value by 0.01 (or multiply by 100).

What is 0.07 hectares in square kilometers?

0.07 hectares = 0.0007 square kilometers. This is one of the most commonly searched conversions for this pair.

Is the hectare-to-square kilometer conversion exact?

Yes. The factor 0.01 is exact by international definition, not an approximation. Any imprecision comes only from the original measurement, not the conversion.

Looking for the reverse? Convert Square Kilometer to Hectare

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Conversion factors verified against NIST, BIPM, ISO 80000-3 Derived from SI base units (m², BIPM). Last reviewed: March 2026
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.