hectares to acres converter

A hectare is 2.4711 acres — the acre is defined in metres, so the ratio is exact. This converts land areas either way with square kilometres and square miles for larger holdings.

Acres

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Acres—
Square metres—
Square feet—
Square kilometres—
Square miles—
Hectares—

Hectares to acres

HectaresAcres
0.1 ha0.247105 acres
0.25 ha0.617763 acres
0.5 ha1.2355 acres
1 ha2.4711 acres
2 ha4.9421 acres
2.5 ha6.1776 acres
4 ha9.8842 acres
5 ha12.3553 acres
10 ha24.7105 acres
20 ha49.4211 acres
25 ha61.7763 acres
40 ha98.8422 acres
50 ha123.5527 acres
100 ha247.1054 acres
250 ha617.7635 acres
500 ha1,235.53 acres
1,000 ha2,471.05 acres

Acres to hectares

AcresHectares
0.5 acres0.202343 ha
1 acres0.404686 ha
2 acres0.809371 ha
2.5 acres1.0117 ha
5 acres2.0234 ha
10 acres4.0469 ha
20 acres8.0937 ha
40 acres16.1874 ha
50 acres20.2343 ha
100 acres40.4686 ha
160 acres64.7497 ha
250 acres101.1714 ha
500 acres202.3428 ha
640 acres258.9988 ha
1,000 acres404.6856 ha
5,000 acres2,023.43 ha

Related calculators

Length Weight Temperature Volume Area Speed

A hectare is a hundred-metre square

A hectare is 10,000 m² — a square 100 m on a side, or roughly a rugby pitch. An acre is 4,046.8564224 m², defined through the international foot, which makes a hectare exactly 2.47105381… acres. Farm sizes, forestry, planning applications and most land registries outside the US and UK use hectares; US, UK, Canadian and Australian real estate still quote acres. 100 hectares is a square kilometre; 259 hectares is a square mile.

acres = hectares × 2.4710538147   |   hectares = acres ÷ 2.4710538147

Rough conversion in your head

Multiply hectares by 2½ for acres: 40 ha → 100 acres (true 98.8). Multiply acres by 0.4 for hectares: 160 acres, a US quarter-section, → 64 ha (true 64.7). Both are within about 1%, which is closer than most field boundaries are surveyed.

Frequently asked questions

How many acres are in 1 hectare?
One hectare is 2.4711 acres — an exact figure, because both units are pinned to the same definition.
What is 10 hectares in acres?
10 hectares is 24.7105 acres.
How do I convert hectares to acres?
Multiply by 2.4710538147. To go back, divide acres by 2.4710538147. The calculator does both directions and shows the working under the result.
How many hectares are in 1 acre?
One acre is 0.404686 hectares.
How many hectares in a square kilometre?
Exactly 100. A square kilometre is 100 hectares or 247.1 acres; a square mile is 259 hectares or 640 acres.

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