About the Hectares to Acres
This hectares to acres converter turns a land area in hectares (ha) into acres (ac), the unit used for property and farmland in the United States, the UK and several Commonwealth countries. Along with acres you get square feet, square meters, square kilometers and square miles, so a single entry covers most real-estate and agricultural paperwork.
Use it when reading an overseas property listing, comparing farm sizes quoted in different systems, converting crop yields or subsidy rates per hectare, or planning a development measured in square feet. The reference table lists common parcel sizes from a tenth of a hectare to 1,000 ha.
One hectare is exactly 10,000 m² — a square 100 m on each side, or a little under two American football fields including the end zones. The US survey acre is marginally larger than the international acre (by 4 parts per million); this tool uses the international acre, which is the official US definition since 2023.
With the default inputs, the acres is 2.4711 ac. Change any value above to recalculate instantly.
How to use the hectares to acres
- 1Enter the area in hectares.
- 2Read the equivalent in acres.
- 3Use the square feet or square meters figure for smaller plots and building plans.
- 4Check the table for common farm and lot sizes.
Formula and method
A hectare is 10,000 square meters. An international acre is defined as 4,046.8564224 m² (43,560 square feet, with 1 ft = 0.3048 m exactly). Dividing the hectare area in square meters by the square meters in an acre gives 2.4710538 acres per hectare.
Square feet divide the square meters by 0.09290304, square kilometers divide by one million, and square miles divide by 2,589,988.11 m² (640 acres).
- ha
- Hectare = 10,000 m² (100 m × 100 m)
- ac
- Acre = 43,560 sq ft = 4,046.86 m²
Worked examples
One hectare
10,000 m² ÷ 4,046.86 m² per acre = 2.471 acres. In square feet that is 10,000 ÷ 0.0929 ≈ 107,639 sq ft.
A 50-hectare farm
50 × 2.4710538 = 123.55 acres — about a fifth of a square mile (0.193 sq mi) or half a square kilometer.
A 0.4 ha house plot
0.4 ha is 4,000 m², which is 0.988 acres — just under one acre, or about 43,056 square feet.
Frequently asked questions
How many acres are in a hectare?+
One hectare equals 2.4710538 acres, usually rounded to 2.47. So 10 hectares is about 24.7 acres and 100 hectares about 247 acres.
Which is bigger, a hectare or an acre?+
A hectare is about two and a half times bigger than an acre. One acre is 0.4047 hectares, or 4,046.86 square meters.
How big is a hectare in real life?+
A hectare is a 100 m × 100 m square. A standard international football (soccer) pitch covers about 0.7 hectares, so a hectare is a bit larger than one and a third pitches.
How do I convert hectares to acres in my head?+
Multiply by 2.5 and subtract about 1%. For 40 ha: 40 × 2.5 = 100, minus 1% gives roughly 99 acres; the exact figure is 98.84 acres.
How many square feet are in a hectare?+
One hectare is about 107,639 square feet. For comparison, one acre is exactly 43,560 square feet.