Acres to Hectares Converter

1 ac = 0.40468564224 ha. Type any value below for the exact hectares figure.

ac
0.40468564224ha

1 ac = 0.40468564224 ha

Conversion summary

1 ac = 0.40468564224 ha

Formula
Hectare = Acre ÷ 2.47105381467
Category
Area
Units
ac → ha

1 ac in other units

Values update with the converter above. Select a row to open that conversion's detailed page.

Metric

  • Square meter4,046.856 m²
  • Square centimeter40,468,560 cm²
  • Square millimeter4,046,856,000 mm²
  • Square kilometer0.004046856 km²
  • Hectare0.4046856 ha
  • Are40.46856 a
  • Feddan0.9633462 feddan
  • Qirat (Land)23.12031 qirat
  • Sahm (Land Share)554.8874 sehm
  • Decare4.046856 dekar

US / Imperial

Traditional and regional

How do you convert acres to hectares?

To convert acres to hectares, divide the number of acres by 2.47105381467. 1 ac = 0.404686 ha.

Conversion formula

Hectare = Acre ÷ 2.47105381467

Acres to hectares conversion table

Acres (ac)Hectares (ha)
1 ac0.404686 ha
2 ac0.809371 ha
5 ac2.02343 ha
10 ac4.04686 ha
20 ac8.09371 ha
50 ac20.2343 ha
100 ac40.4686 ha

What is Acre?

Acre is an area unit used to describe surface size, land coverage or geometric sections.

Short history of Acre

The acre was originally the area a team of oxen could plough in a day. It was standardized as 4,840 square yards; since the 1959 international yard agreement one acre is 4,046.8564224 m².

Open the Acre unit guide

What is Hectare?

The hectare is a large area unit widely used for land measurement. One hectare is exactly 10,000 square meters.

Short history of Hectare

The hectare (100 ares, 10,000 m²) dates from the French metric system of 1795. It is not an SI unit but is accepted for use with the SI and is the standard unit for farmland and land area in most countries.

Open the Hectare unit guide

Frequently asked questions

What is 1 Acre in Hectare?

1 ac = 0.40468564224 ha.

How do you convert Acre to Hectare?

To convert acres to hectares, divide the number of acres by 2.47105381467. 1 ac = 0.404686 ha.

Frequently asked questions

How many hectares are in 1 acre?

1 ac = 0.404686 ha.

How do you convert acres to hectares?

To convert acres to hectares, divide the number of acres by 2.47105381467. 1 ac = 0.404686 ha.

How many acres are in 1 hectare?

1 ha = 2.47105 ac.

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India Land Area Converter

Bigha, katha, gaj, guntha and cent by state.

Bigha to Square Feet

1 Bengal bigha = 14,400 sq ft.

Acres to Bigha

1 acre = 3.025 Bengal bigha.

Gaj to Square Feet

1 gaj = 1 square yard = 9 sq ft.

Marla to Gaj

1 marla = 30.25 gaj (272.25 sq ft).

Cent to Square Feet

1 cent = 435.6 sq ft.

Sources

  1. BIPM: The International System of Units (SI Brochure)
  2. NIST: Guide for the Use of the International System of Units