Convert Hectares to Acres

Instantly convert hectares (ha) to acres (ac). Enter a value to see the result and the conversion formula.

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How our Hectares to Acres unit converter works

To ensure maximum accuracy when converting Hectares to Acres, our calculator uses a scientific pivot method. Instead of relying on a potentially inaccurate direct conversion, the system first converts ha into the base unit of the International System (the square meter), then recalculates the result into ac. This approach drastically reduces rounding errors.

About this conversion

Hectares are the official unit of land in Canada, but the acre remains the cultural and historical standard in the Prairies and US.

When to use this conversion

Essential for farmers discussing crop yields, land buyers, and comparing agricultural plots across the US-Canada border.

Formula

Acres (ac) = Hectares (ha) × 2.47105

Tip: You can swap units and convert decimals. Results are rounded for readability.

Examples

Hectares (ha) Acres (ac)
1 ha 2.47105 ac
2 ha 4.9421 ac
5 ha 12.35525 ac
10 ha 24.7105 ac
20 ha 49.421 ac
50 ha 123.5525 ac
100 ha 247.105 ac
250 ha 617.7625 ac
500 ha 1235.525 ac
1000 ha 2471.05 ac

FAQ

How big is one hectare?

One hectare is 10,000 square meters. It is equal to about 2.47 acres, roughly the size of a standard rugby field.

Why do farmers use acres instead of hectares?

The acre was historically defined as the amount of land a yoke of oxen could plow in one day. The habit stuck.