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Hectares to Square Kilometers Converter

Convert hectares (ha) to square kilometers (km²), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an area, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

About valueA number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
About toThe unit you want the answer in. Swap exchanges the two units.
Result
Result
0.01 km²
square miles
0.00386102158542 sq mi
acres
2.47105381467 ac
square yards
11,959.900463 sq yd
square feet
107,639.104167 sq ft
square inches
15,500,031.0001 sq in
ares
100 a
square meters
10,000 m²
square centimeters
100,000,000 cm²
square millimeters
10,000,000,000 mm²
square micrometers
1 × 10¹⁶ µm²

1 ha = 0.01 km²

Show the working
  1. 1 ha = 0.01 km²
  2. 1 × 0.01 = 0.01 km²

How to convert hectares to square kilometers

1 ha = 0.01 km², so multiply by 0.01 to go from hectares to square kilometers. Going the other way, 1 km² = 100 ha.

km² = ha × 0.01
ha = km² × 100

Worked example:

1 ha = 0.01 km²
5 × 0.01 = 0.05 km²

Hectares to square kilometers table

HectaresSquare Kilometers
1 ha0.01 km²
2 ha0.02 km²
3 ha0.03 km²
4 ha0.04 km²
5 ha0.05 km²
6 ha0.06 km²
7 ha0.07 km²
8 ha0.08 km²
9 ha0.09 km²
10 ha0.1 km²
15 ha0.15 km²
20 ha0.2 km²
25 ha0.25 km²
30 ha0.3 km²
40 ha0.4 km²
50 ha0.5 km²
75 ha0.75 km²
100 ha1 km²
250 ha2.5 km²
500 ha5 km²
1000 ha10 km²

About the units

Hectares (ha)
Hectares, a metric unit. Definition: BIPM SI Brochure (non-SI unit accepted for use with the SI).
Square Kilometers (km²)
Square kilometers, a metric unit. Definition: BIPM SI Brochure (SI prefixes).

Formula version 0.1.0Reviewed