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Hectares to Acres Converter

1 ha = 2.47105 ac (hectare → acre)

1 ha = 2.47105 ac

1 hectare equals 2.47105 acres. To convert hectares to acres, multiply the hectare value by 2.47105. For quick reference: 1 ha = 2.47105 ac, 5 ha = 12.3553 ac, 10 ha = 24.7105 ac, 100 ha = 247.105 ac.

When to use hectares → acres

Hectares to acres multiplies by 2.4710538 (1 ÷ 0.40468564224). A 50 ha vineyard is 123.6 acres; a 17 ha average EU farm is about 42 acres. Used whenever metric-registered land is presented to US or UK audiences. The mental shortcut of 2.5 acres per hectare overstates by about 1.2 % — fine for conversation, not for a contract schedule.

This is the standard conversion for anyone buying or comparing farmland across the Atlantic — European vineyard listings in hectares translated for a US or UK buyer thinking in acres: 10 ha is 24.71 ac, 50 ha is 123.55 ac, and 1 ha is 2.471 ac. Because the ratio isn't a clean round number, agricultural brokers dealing in both markets often keep a printed conversion table on hand rather than recalculating each listing from scratch.

How to convert hectares to acres

  1. Take your value

    Start with your value in hectares.

  2. Multiply by 2.47105

    Multiply the hectare value by 2.47105. This is the exact conversion factor from hectares to acres.

  3. Read the result

    The product is your value in acres. For example, 5 ha × 2.47105 = 12.3553 ac.

Conversion formula

The exact factor from hectares to acres is 2.47105.

Acres = Hectares × 2.47105

Hectares to Acres conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from hectares to acres
Hectares (ha)Acres (ac)
0.1 ha0.24711 ac
0.25 ha0.61776 ac
0.5 ha1.2355 ac
1 ha2.4711 ac
2 ha4.9421 ac
3 ha7.4132 ac
4 ha9.8842 ac
5 ha12.355 ac
6 ha14.826 ac
7 ha17.297 ac
8 ha19.768 ac
9 ha22.239 ac
10 ha24.711 ac
12 ha29.653 ac
15 ha37.066 ac
20 ha49.421 ac
25 ha61.776 ac
30 ha74.132 ac
40 ha98.842 ac
50 ha123.55 ac
60 ha148.26 ac
70 ha172.97 ac
75 ha185.33 ac
80 ha197.68 ac
90 ha222.39 ac
100 ha247.11 ac
120 ha296.53 ac
150 ha370.66 ac
200 ha494.21 ac
250 ha617.76 ac
300 ha741.32 ac
400 ha988.42 ac
500 ha1235.5 ac
600 ha1482.6 ac
750 ha1853.3 ac
800 ha1976.8 ac
1000 ha2471.1 ac
1200 ha2965.3 ac
1500 ha3706.6 ac
2000 ha4942.1 ac
2500 ha6177.6 ac
3000 ha7413.2 ac
4000 ha9884.2 ac
5000 ha12355 ac
7500 ha18533 ac
10000 ha24711 ac
20000 ha49421 ac
50000 ha123553 ac
100000 ha247105 ac
1000000 ha2471054 ac

Real-world reference

A full-size soccer pitch is roughly 0.7 ha. European farm sizes are typically quoted in hectares — the EU average is around 17 ha. In acres, that gives you: 1 ha = 2.47105 ac, 10 ha = 24.7105 ac, 100 ha = 247.105 ac.

Frequently asked questions

How many acres are in 1 hectare?
1 hectare equals 2.47105 acres.
How do I convert hectares to acres?
Multiply the hectare value by 2.47105. So x ha × 2.47105 = the equivalent in ac.
What is 5 hectares in acres?
5 hectares equals 12.3553 acres.
What is 10 hectares in acres?
10 hectares equals 24.7105 acres.
What is 100 hectares in acres?
100 hectares equals 247.105 acres.
How do I convert back from acres to hectares?
Multiply the acre value by 0.404686. For example, 1 ac = 0.404686 ha.
Is the hectare bigger than the acre?
Yes. 1 hectare is larger than 1 acre — specifically 2.47105 times larger.
Are these conversion factors exact?
The underlying imperial/US unit definitions are exact; the displayed factor (2.47105) is rounded for readability, and the browser computes using IEEE 754 double-precision arithmetic.

About the hectare and the acre

The hectare

The hectare is the metric land unit — exactly 10,000 m², a square 100 meters on each side. It's the standard for farmland, forestry, and land registration in nearly every country outside the US. One hectare is about 2.47 acres. A rugby or soccer pitch is roughly 0.7–1 hectare.

The acre

The acre is the traditional imperial unit for land, still the standard for US and UK property, farmland, and parkland. One acre is exactly 4,046.8564224 m² — historically the area a yoke of oxen could plough in a day, standardised as 1 chain by 1 furlong (66 × 660 feet, or 43,560 square feet). An American football field including end zones is about 1.32 acres.

Sources