Acres to Hectares Converter
Updated Formulas shown
Multiply acres by 0.404686 to get hectares: 5 acres = 2.023 ha. One acre is 4,046.86 m² — 43,560 ft².
Formula: hectares = acres ÷ 2.4710538147 (exact ratio, shown rounded)
Common values: acres → hectares
| acres | hectares |
|---|---|
| 0.404686 ha | |
| 0.809371 ha | |
| 1.21406 ha | |
| 2.02343 ha | |
| 4.04686 ha | |
| 8.09371 ha | |
| 10.1171 ha | |
| 20.2343 ha | |
| 40.4686 ha | |
| 101.171 ha | |
| 202.343 ha | |
| 404.686 ha |
5 ac in every area unit
- 20,234,300,000 mm²
- 202,343,000 cm²
- 20,234.3 m²
- 2.02343 ha
- 0.0202343 km²
- 31,363,200 in²
- 217,800 ft²
- 24,200 yd²
- 0.0078125 mi²
How to convert acres to hectares
- Type the value in acres into the converter (or into the right-hand box to go the other way).
- Divide by 2.4710538147 to get hectares.
- Round to a sensible precision with the Decimals control; the table below covers the values people look up most.
Acre to hectare formula
hectares = acres ÷ 2.4710538147 — 1 ac = 0.40468564 ha. Both units are defined exactly (NIST SP 811); the factor above is rounded to 10 decimals, and the converter uses the full-precision ratio.
ac to ha conversion table
| acres | hectares | m² |
|---|---|---|
| 0.1 | 0.0405 | 405 |
| 0.25 | 0.1012 | 1,012 |
| 0.33 | 0.1335 | 1,335 |
| 0.5 | 0.2023 | 2,023 |
| 0.75 | 0.3035 | 3,035 |
| 1 | 0.4047 | 4,047 |
| 2 | 0.8094 | 8,094 |
| 2.5 | 1.0117 | 10,117 |
| 3 | 1.2141 | 12,141 |
| 5 | 2.0234 | 20,234 |
| 10 | 4.0469 | 40,469 |
| 20 | 8.0937 | 80,937 |
| 40 | 16.1874 | 161,874 |
| 80 | 32.3749 | 323,749 |
| 100 | 40.4686 | 404,686 |
| 160 | 64.7497 | 647,497 |
| 320 | 129.4994 | 1,294,994 |
| 640 | 258.9988 | 2,589,988 |
Lot sizes
A typical quarter-acre suburban lot is 0.101 ha (1,012 m²). A 40-acre parcel (a quarter of a quarter section) is 16.19 ha; a full section (one square mile, 640 acres) is 259 ha. For square feet, use acres to square feet.
Related converters & calculators
- Hectares to Acres Converter1 ha = 2.47105 acres.
- Acres to Square Feet ConverterConvert acres to square feet (1 acre = 43,560 ft²), plus square yards, square meters and hectares.
- Square Feet to Acres ConverterConvert square feet to acres instantly.
- Square Yards to Square Meters Converter1 yd² = 0.836127 m².
- Unit ConverterEvery unit in one fast converter.
Frequently asked questions
How many hectares is 1 acre?
0.404686 ha.
How many hectares is 5 acres?
2.023 ha.
How many m² in an acre?
4,046.86 m².
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