How many acres are in a hectare?

1 hectare is about 2.471 acres (2.471053815 ac). A hectare is 10,000 m², the size of a square 100 m on each side. To go the other way, use acres to hectares.

What is 5 hectares in acres?

5 hectares is about 12.36 acres (12.35526907 ac). That is a little over 12 acres.

How many acres is a 100-hectare farm?

100 hectares is about 247.1 acres (247.1053815 ac). It equals 1 km², which is about 0.386 square miles.

Is a hectare bigger than an acre?

Yes. A hectare is about 2.47 times the size of an acre. Half a hectare, 0.5 ha, is about 1.24 acres. For definitions, see the area definitions and worked example.

Hectares (ha) to Acres Converter

Enter a value to instantly convert between area units.

From

Precision4 dp

1 Hectare = 2.4711 Acre

Key Formulas

Acre → Square Foot

ft² = ac × 43560

Square Foot → Acre

ac = ft² × 0.0000229568

Hectare → Acre

ac = ha × 2.47105

Acre → Hectare

ha = ac × 0.404686

Formula

ac = ha × (10000 / 4046.8564224)

To convert hectares to acres, multiply by 10,000 and divide by 4,046.8564224, which is about 2.4710538 acres per hectare. A hectare is a square 100 m on each side, and the acre is the international 43,560 ft². Agricultural statistics, forestry records, and European property listings use hectares, while US and UK buyers think in acres. A 50 ha farm covers about 123.55 acres. The 2.47105 figure on many sites is rounded, so repeated calculations should use the full ratio.

Source: NIST revised international-foot land factors; SP 811 Chapter 5 and Appendix B.8 (definition-derived arithmetic)

Reviewed by the Convert Calc editorial team · Last reviewed: 2026-10-06 · see our methodology

Frequently Asked Questions

Real-World Examples

A one-hectare plot, restated in acres for a US listing.

1 ha = 2.471053815 ac

A 5-hectare vineyard described to a US buyer in acres.

5 ha = 12.35526907 ac

A 100-hectare farm (1 km²) compared with US acreage.

100 ha = 247.1053815 ac

Half a hectare of garden or orchard, in acres.

0.5 ha = 1.235526907 ac

acres to sq feet sq feet to acres acres to hectares sq meters to sq feet sq feet to sq meters

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