Hectares to acres
Convert hectares to acres. To convert hectares to acres, divide by 0.4047.
Factors from their legal definitions.
Show the workings
| Step | Sum | Answer |
|---|---|---|
| One hectare in square metres | 10,000 m² | 10,000 m² |
| One acre in square metres | 4,840 × (0.9144 m)² | 4,046.856 m² |
| 1 hectare in square metres | 1 × 10,000 | 10,000 m² |
| In acres | 10,000 ÷ 4,046.9 | 2.471 acres |
Where the figures come from
- Square metres in a hectare: 10,000 m2 per hectare. Source: Weights and Measures Act 1985, Schedule 1. Checked 13 November 2026.
- A yard in metres: 0.914 m per yard. Source: Weights and Measures Act 1985, Schedule 1. Checked 13 November 2026.
- Square yards in an acre: 4,840 square yards per acre. Source: Weights and Measures Act 1985, Schedule 1. Checked 13 November 2026.
Hectares to acres table
| Hectares | Acres |
|---|---|
| 0.5 ha | 1.236 acres |
| 1 ha | 2.471 acres |
| 2 ha | 4.942 acres |
| 3 ha | 7.413 acres |
| 4 ha | 9.884 acres |
| 5 ha | 12.355 acres |
| 6 ha | 14.826 acres |
| 7 ha | 17.297 acres |
| 8 ha | 19.768 acres |
| 9 ha | 22.239 acres |
| 10 ha | 24.711 acres |
| 12 ha | 29.653 acres |
| 15 ha | 37.066 acres |
| 20 ha | 49.421 acres |
| 25 ha | 61.776 acres |
| 30 ha | 74.132 acres |
| 40 ha | 98.842 acres |
| 50 ha | 123.553 acres |
| 75 ha | 185.329 acres |
| 100 ha | 247.105 acres |
How to convert hectares to acres
One hectare is 2.471 acres, and one acre is 0.4047 hectares. So to turn hectares into acres, divide by 0.4047. For example, 1 hectares ÷ 0.4047 = 2.471 acres.
Where the numbers come from
Imperial units are defined in law as exact amounts of metric ones. These are the definitions this converter uses:
- Square metres in a hectare: 10,000 m2 per hectare. Source: Weights and Measures Act 1985, Schedule 1.
- A yard in metres: 0.914 m per yard. Source: Weights and Measures Act 1985, Schedule 1.
- Square yards in an acre: 4,840 square yards per acre. Source: Weights and Measures Act 1985, Schedule 1.