Researched by ExpatMoneyEU Team · Last updated 14 November 2026 · Data: NIST SP 811, Appendix B
The short answer: 2 hectares is 4.9421076293 acres. Multiply any hectare figure by 2.47105381467 to get acres. The converter below starts at 2 hectares — type your own figure and the exact result appears instantly.
Free Hectares to Acres Converter
What this converter does: it turns an area in hectares into the same area in acres, so a European land listing quoted in hectares makes sense at a glance if you think in acres. If your starting figure is already in acres, use the Free Acres to Hectares Converter instead. If the plot comes with a house, our Free House Buying Costs Calculator for Europe helps you work out what buying the property would cost overall.
How to use the converter
- Type the area in the hectares box — the acre value updates as you type, with no button to press.
- Read the result line: the converted area, plus both directions of the rate (1 hectare in acres, and 1 acre in hectares).
- To go the other way, type in the acres box instead, or press Swap direction to flip the converter and carry the converted value over as the new input.
- Decimals are welcome: 3.5 hectares converts just as easily as 3 hectares.
- Check the plot figure: a listing may quote the whole plot, the buildable area or the farmed area — compare like with like.
The formula
Let Aha be the area in hectares and Aac be the same area in acres. The two directions are:
- Acres from hectares: Aac = Aha × 2.47105381467
- Hectares from acres: Aha = Aac × 0.40468564224 (equivalently, Aac ÷ 2.47105381467)
The factor 2.47105381467 is the reciprocal of the exact 0.40468564224: one acre is 4,046.8564224 m² exactly and a hectare is 10,000 m², so 1 ÷ 0.40468564224 = 2.4710538146717 acres per hectare. The converter works from the exact reciprocal, so any rounding you see comes only from how many decimal places are displayed. For the reverse direction in its own tool, see the Free Acres to Hectares Converter.
Worked example
A plot is listed as 3.5 hectares, and you want to picture it in acres and check the price:
- Multiply by the factor: 3.5 × 2.47105381467 = 8.648688351345 acres (shown as 8.6487 acres)
- Check the other way: 8.648688351345 ÷ 2.47105381467 = 3.5 ha, back where we started
- Illustrative price check (hypothetical numbers only, not a market rate): at an assumed €20,000 per hectare, the plot costs 3.5 × €20,000 = €70,000, which is about €70,000 ÷ 8.648688351345 = €8,093.71 per acre
So the plot is just over 8.5 acres. Try 3.5 in the converter above to see the same answer.
Hectares to acres conversion table
| Hectares (ha) | Acres | Square metres (m²) |
|---|---|---|
| 0.25 | 0.6178 | 2,500 |
| 0.5 | 1.2355 | 5,000 |
| 1 | 2.4711 | 10,000 |
| 2 | 4.9421 | 20,000 |
| 5 | 12.3553 | 50,000 |
| 10 | 24.7105 | 100,000 |
| 20 | 49.4211 | 200,000 |
| 50 | 123.5527 | 500,000 |
| 100 | 247.1054 | 1,000,000 |
| 250 | 617.7635 | 2,500,000 |
Acres and square metres are shown to four decimal places. The underlying factor is the exact reciprocal of 0.40468564224, so the only rounding is in the display.
Everyday benchmarks: sizes that build a feel for the units
The sizes below are round examples to build a feel for the two units — not statistics about any market. Each line is a straight conversion of the same area:
- One hectare — 1 ha = 2.4711 acres = 10,000 m². A square 100 m × 100 m, or 107,639.104 sq ft.
- Half a hectare — 0.5 ha = 1.2355 acres. A garden-plot-sized example.
- One acre in reverse — 1 acre = 0.4047 ha. An acre is 4,046.8564 m², a little over 40% of a hectare.
- Ten hectares — 10 ha = 24.7105 acres. A small-field-sized example.
- A hundred hectares — 100 ha = 247.1054 acres. Exactly one square kilometre of land.
- Two hundred fifty hectares — 250 ha = 617.7635 acres. Two and a half square kilometres.
For floor area rather than land, the Free Square Feet to Square Metres Converter and Free Square Metres to Square Feet Converter cover homes and flats.
Rounding and exactness
The factor is the exact reciprocal of 0.40468564224, so this converter never estimates: the only rounding is the four decimal places shown on screen. For money sums, convert first with the full result and round the euros last. For a purchase, the land registry or survey figure governs — this converter translates that figure into the other unit, it does not measure the land.
Sources
- NIST Special Publication 811 — Guide for the Use of the International System of Units (SI), Appendix B: conversion factors for the foot, yard, square foot, acre and hectare.
- BIPM SI Brochure — the International System of Units, definitions of the metre and the hectare.
- International Yard and Pound Agreement, 1959 — 1 yard = 0.9144 m exactly, giving 1 ft = 0.3048 m, 1 sq ft = 0.09290304 m² and 1 acre = 4,046.8564224 m² exactly.
ExpatMoneyEU verdict: multiply hectares by 2.47105381467 and you have exact acres — 2 hectares is 4.9421 acres. Convert before you compare any two plots, because a price per hectare and a price per acre are never directly comparable.