Hectare to Acre Converter

This hectare to acre converter turns hectares into acres and acres into hectares for farmers, land buyers, planners and students who meet both units on UK and European paperwork. It uses the exact definitions set out in the Weights and Measures Act 1985, where an acre is 4,840 square yards and a hectare is 100 ares, so your answer is exact before rounding. It also converts asking prices between per hectare and per acre, which no ordinary unit converter does.

Quick answer: One hectare equals 2.4711 acres, and one acre equals 0.4047 hectares. In a hectare to acre converter the formula is acres = hectares × 2.47105, and hectares = acres × 0.404686. So 12 hectares is 29.65 acres, and a 40 acre field is 16.19 hectares.

What Is a Hectare to Acre Converter?

A hectare to acre converter is a tool that restates a land area measured in metric hectares as imperial acres, or the reverse. Both units measure area: a hectare is a square 100 m on each side (10,000 m²), and an acre is 4,840 square yards, which works out at exactly 4,046.8564224 m². Dividing one by the other gives the factor: 10,000 ÷ 4,046.8564224 = 2.4710538 acres per hectare.

Here is how that plays out. Owen is looking at a 12 hectare block of hill grazing in mid Wales. The agent's brochure gives the size in hectares, but the guide price is £9,500 per acre. Multiplying 12 by 2.4710538 gives 29.65 acres, so the land costs about £281,700 in total, which is £23,475 per hectare. With both figures in the same unit, he can compare it fairly with a neighbouring farm advertised per hectare.

How to Use the Hectare to Acre Converter

Step 1: Pick the Direction

Choose hectares to acres or acres to hectares. When you switch, the current answer moves into the input box, so you can check a figure both ways without retyping it.

Step 2: Enter the Area

Type the area from your deed, plan or listing. Fractions of a hectare such as 0.35 work as typed. Choose 2 decimal places for listings, 4 for grant or planning forms, and 6 if you are checking a land survey.

Step 3: Add a Land Price if You Have One

Pick £, $ or € and enter the asking price, then say whether it is quoted per acre or per hectare. The default £9,500 is only an example, since land values vary hugely by region, soil grade and planning status. Leave it as it is if you only need the area.

Step 4: Read the Results

The large figure is your converted area, with a mental maths check underneath. The tiles give square metres, square feet, square yards and full size football pitches of 105 m by 68 m. The price table shows the cost per acre, per hectare, per square metre and in total, and the unit price comparison calculator helps if you then want to rank several plots by value.

How Many Acres Are in a Hectare?

There are 2.4710538 acres in one hectare, usually rounded to 2.471 or 2.47. For a quick estimate in your head, multiply hectares by 2.5 and take off 1%: 12 ha × 2.5 = 30, minus 0.3 gives 29.7 acres, within 0.2% of the exact 29.65. Going the other way, multiply acres by 0.4 and add 1%. Rounding to 2.5 alone overstates the area by 1.2%, which matters on a large farm sale.

Is a Hectare Bigger Than an Acre?

Yes, a hectare is about 2.5 times bigger than an acre. A hectare is a 100 m square, roughly 1.4 full size football pitches, while an acre is about 63.6 m square, or a traditional strip of one chain by one furlong (22 by 220 yards) that a team of oxen could plough in a day. The hectare is younger: it is 100 ares, and the hectare article on Wikipedia traces it to the French metric system of the 1790s, which is why most of Europe sells land by the hectare. In Britain, farm payments, woodland grants and planning documents now use hectares, while estate agents and many farmers still talk in acres.

How Do You Convert a Price per Hectare to a Price per Acre?

Divide the price per hectare by 2.47105 to get the price per acre, or multiply a price per acre by 2.47105 to get the price per hectare. A French vineyard plot at €40,000 per hectare is €16,187 per acre, and a UK paddock at £12,000 per acre is £29,653 per hectare. Once both listings are in the same unit, the percentage difference calculator shows how far apart they really are as a single figure. Because the price unit moves the opposite way to the area unit, mixing them up overstates or understates value by nearly two and a half times, so the tool always shows both side by side.

Hectares to Acres Conversion Table

Hectares	Acres	Acres	Hectares
0.1 ha	0.2471 ac	0.25 ac	0.1012 ha
0.5 ha	1.2355 ac	0.5 ac	0.2023 ha
1 ha	2.4711 ac	1 ac	0.4047 ha
2 ha	4.9421 ac	5 ac	2.0234 ha
5 ha	12.3553 ac	10 ac	4.0469 ha
10 ha	24.7105 ac	25 ac	10.1171 ha
25 ha	61.7763 ac	50 ac	20.2343 ha
50 ha	123.5527 ac	100 ac	40.4686 ha
100 ha	247.1054 ac	640 ac (1 sq mile)	258.9988 ha

Every value above uses the international acre of 4,046.8564224 m². The old US survey acre is about 0.016 m² larger and fell out of use when NIST retired the US survey foot at the end of 2022, so on a 100 acre farm the difference is only about 1.6 square metres. If your plan shows lengths rather than an area, the length converter turns chains, yards and feet into metres first. Figures checked October 2026.

Hectare to Acre Terms You Should Know

These land measurement terms explain the units the hectare to acre converter works with, helping you compare field sizes and land prices accurately.

Hectare

A metric unit of land area equal to 10,000 square metres, the area of a square 100 metres on each side. It is the standard unit for farmland and forestry across Europe and on most official agricultural forms.

Acre

An imperial unit of land area defined as 4,840 square yards. It is still widely used for property and farm sales in the UK and United States, so land is often described in acres even where metric units are official.

Are

A metric unit of area equal to 100 square metres, the area of a square 10 metres on each side. It is rarely used alone today, but the hectare takes its name from it as one hundred ares.

Square yard

An imperial unit of area equal to a square measuring one yard on each side. Because a yard is defined as exactly 0.9144 metres, the acre has an exact metric equivalent, allowing a precise conversion factor.

Price per unit area

The cost of land expressed for each hectare or acre rather than as a total. Converting both listings to the same basis is necessary to compare plots fairly, since a per hectare price looks much larger than a per acre one.

Weights and Measures Act 1985

The UK statute that defines legal units of measurement, including the imperial acre and metric hectare, and governs their use in trade. It fixes the exact relationships that conversions between the two units rely on.

Frequently Asked Questions