How many acres are in 1 hectare?

1 hectare equals 2.47105381 acres. This conversion factor is defined by the relationship between the International System of Units (SI) and the United States customary units. One hectare contains 10,000 square meters (m²), and one acre contains 4,046.8564224 square meters (m²), making 1 hectare approximately 2.471 times larger than 1 acre.

Is a hectare larger than an acre?

Yes, a hectare is larger than an acre. A hectare measures 10,000 square meters (m²), while an acre measures 4,046.86 square meters (m²). A hectare is 2.47105381 times the size of an acre. In square feet (ft²), a hectare equals 107,639 ft² compared to an acre's 43,560 ft².

How many hectares are in 100 acres?

100 acres equals 40.46856 hectares. To convert acres to hectares, divide the acre value by 2.47105381. The calculation is: 100 ÷ 2.47105381 = 40.46856 hectares, which equals 404,685.64 square meters (m²) or approximately 0.4047 square kilometers (km²).

Which countries use hectares?

Most countries worldwide use hectares as the standard land measurement unit. The hectare is part of the metric system and is recognized by the International Bureau of Weights and Measures (BIPM). Countries that use hectares include India, all European Union member states, Australia, Canada, Brazil, China, Japan, and most African and Asian nations. The hectare is the preferred unit for agricultural land measurement, real estate, and land surveying in these regions.

Which countries use acres?

The United States, United Kingdom, Myanmar, and several Caribbean nations use acres as a land measurement unit. The acre is part of the imperial system and United States customary units. In the US, acres are the primary unit for real estate, agricultural land, and property size measurement. The United Kingdom uses acres alongside hectares. India uses acres in some states for informal land measurement, alongside hectares for official surveying records.

What is a hectare compared to an acre?

A hectare is a metric unit equal to 10,000 square meters (m²), and an acre is an imperial unit equal to 43,560 square feet (ft²) or 4,046.86 square meters (m²). The hectare is 2.47 times larger than an acre. A hectare measures 100 meters × 100 meters, while an acre measures approximately 63.6 meters × 63.6 meters. The hectare belongs to the International System of Units (SI), and the acre belongs to the United States customary units and the imperial system.

Free Hectare to Acre Converter

Hectare to Acre
Converter

Hectare to acre conversion uses the exact factor of 2.47105381. This land unit converter provides accurate area conversion between the metric system and the imperial system — used for agricultural land measurement, real estate calculations, and property size surveying across 5 common land measurement units.

2.471Acres / Hectare

10,000m² per Hectare

FreeForever

Convert Hectare ↔ Acre

From: Hectare

To: Acre

Metric Unit

What is a Hectare?

A hectare (ha) is a metric unit of area equal to 10,000 square meters (m²), or a square measuring 100 meters × 100 meters. The International Bureau of Weights and Measures (BIPM) recognizes the hectare as a non-SI unit accepted for use with the International System of Units (SI).

One hectare equals 107,639 square feet (ft²), 2.47105381 acres, or 0.01 square kilometers (km²). The word "hectare" combines the SI prefix "hecto" (meaning 100) with "are" (a metric unit equal to 100 square meters).

Hectares are the standard unit for land measurement in most countries worldwide, including India, all European Union member states, Australia, Brazil, China, and Japan. Agricultural land, forestry areas, national parks, and large real estate properties are measured in hectares for global area measurement consistency.

10,000 m²Square Meters

107,639 ft²Square Feet

2.471 acAcres

0.01 km²Square Kilometers

10,000Square Meters (m²)

107,639Square Feet (ft²)

Imperial Unit

What is an Acre?

An acre is an imperial and United States customary unit of area equal to 43,560 square feet (ft²), 4,840 square yards (yd²), or 4,046.8564224 square meters (m²). The acre is defined by the National Institute of Standards and Technology (NIST) and is the primary land measurement unit in the United States.

The acre originates from the old English land surveying system. One acre equals 10 square chains, where 1 chain measures 66 feet (20.12 meters) and 1 furlong measures 660 feet (201.17 meters). A chain equals 4 rods, and a rod measures 16.5 feet (5.03 meters). One acre is the area of a rectangle measuring 1 chain × 1 furlong.

Acres are the standard land measurement unit in the United States, the United Kingdom, and Myanmar. Real estate listings, agricultural land parcels, farm sizes, and property boundaries in these countries use acres. One acre is approximately 90% the size of a standard American football field. To convert acres to hectares, divide the acre value by 2.47105381.

43,560 ft²Square Feet

4,046.86 m²Square Meters

0.4047 haHectares

4,840 yd²Square Yards

43,560Square Feet (ft²)

4,047Square Meters (m²)

4,840Square Yards (yd²)

Formula

Hectare to Acre Formula

The hectare to acre formula is: Acres = Hectares × 2.47105381. This conversion factor is derived from the exact relationship between the square meter (m²) definitions of both units.

The National Institute of Standards and Technology (NIST) defines 1 acre as exactly 4,046.8564224 square meters (m²). The International System of Units (SI) defines 1 hectare as exactly 10,000 square meters (m²). The conversion factor equals 10,000 ÷ 4,046.8564224 = 2.47105381.

The reverse formula to convert acres to hectares is: Hectares = Acres ÷ 2.47105381. The hectare to acre ratio stays constant at 1:2.47105381 regardless of the input value.

Hectare → Acre

Acres=Hectares×2.47105381

Acre → Hectare

Hectares=Acres÷2.47105381

Excel Formula=A1*2.47105381Place hectare value in cell A1 to get acres

Enter Hectares

1Start with 1 hectare

2Multiply: 1 × 2.47105381

✓= 2.47105 acres

Acres=Hectares×2.47105381

💡

Excel formula: =A1*2.47105381

Guide

How to Convert Hectares to Acres

To convert hectares to acres, follow 3 steps: identify the hectare value, multiply by the conversion factor 2.47105381, and read the result in acres. This hectare to acre conversion method works for any value — from small residential plots to large agricultural land parcels.

3 methods to convert hectares to acres:

1Manual calculation: Multiply the hectare value by 2.47105381. For example, 5 hectares × 2.47105381 = 12.35527 acres.
2Online converter: Use this hectare to acre converter tool at the top of the page. Type the hectare value, and the calculator displays the acre result instantly.
3Spreadsheet formula: In Excel or Google Sheets, use the formula =A1*2.47105381 where cell A1 contains the hectare value.

The conversion factor 2.47105381 is an exact value based on the definitions by the National Institute of Standards and Technology (NIST). Rounding to 2.471 introduces a small error of less than 0.002% — acceptable for most real estate and agricultural land calculations.

📝

Step 1: Identify the hectare value

Write down the number of hectares to convert. For this example, the value is 5 hectares.

5 ha

Step 1 of 3

Reference

Hectare to Acre Conversion Table

This hectare to acre conversion table covers 27 common values from 0.1 to 10,000 hectares. Type a custom hectare value to see instant conversion results in acres, square meters (m²), and square feet (ft²).

🔍

Hectares (ha)	Acres (ac)	Square Meters (m²)	Square Feet (ft²)
0.1	0.24711	1,000	10,764
0.2	0.49421	2,000	21,528
0.4	0.98842	4,000	43,056
0.5	1.23553	5,000	53,820
0.8	1.97684	8,000	86,111
0.809	1.99908	8,090	87,080
1	2.47105	10,000	107,639
1.5	3.70658	15,000	161,459
2	4.94211	20,000	215,278
3	7.41316	30,000	322,917
4	9.88422	40,000	430,556
5	12.35527	50,000	538,196
7.5	18.5329	75,000	807,293
10	24.71054	100,000	1,076,391
15	37.06581	150,000	1,614,587
20	49.42108	200,000	2,152,782
25	61.77635	250,000	2,690,978
50	123.55269	500,000	5,381,955
75	185.32904	750,000	8,072,933
100	247.10538	1,000,000	10,763,910
150	370.65807	1,500,000	16,145,866
200	494.21076	2,000,000	21,527,821
250	617.76345	2,500,000	26,909,776
500	1,235.5269	5,000,000	53,819,552
1,000	2,471.05381	10,000,000	107,639,104
5,000	12,355.26905	50,000,000	538,195,520
10,000	24,710.5381	100,000,000	1,076,391,040

Conversion factor: 1 hectare = 2.47105381 acres (exact value)

Examples

Hectare to Acre Examples

6 worked examples showing hectare to acre conversion for common land parcel sizes — from small residential plots to large agricultural land areas.

🏘️

Convert 0.4 Hectares to Acres

Small residential plot in India

1Hectare value = 0.4

20.4 × 2.47105381 = 0.98842

✓0.4 hectares = 0.98842 acres

4,000Square Meters

43,056Square Feet

Visual

Hectare vs Acre: Size Comparison

Drag the slider to compare the relative size of a hectare (10,000 m²) and an acre (4,046.86 m²). A hectare is 2.47 times larger than an acre.

1 ha10,000 m²

Hectare100m × 100m

1 ac4,047 m²

Acre≈ 63.6m × 63.6m

Drag to compare sizes

← Acre focusHectare focus →

2.471Acres per Hectare

2.47×Hectare is larger

40.47%Acre / Hectare ratio

FAQ

Frequently Asked Questions

7 common questions about hectare to acre conversion, answered with exact values and multiple measurement units.

38 Free Tools

Land Area Conversion Tools

38 free land unit converters covering hectares, acres, square meters, square feet, square yards, square kilometers, square miles, bigha, kanal, marla, guntha, cent, and decimal — 13 interconnected measurement units.

m²

ft²

yd²

km²

mi²

bigha

kanal

marla

guntha

cent

dec

13 interconnected land measurement units

🌍

Hectare Converters

12 tools

🇮🇳

Indian Units Converters

12 tools

bigha

Hectare to Bigha

× 3.954

bigha

Bigha to Hectare

÷ 3.954

kanal

Hectare to Kanal

× 19.768

kanal

Kanal to Hectare

÷ 19.768

marla

Hectare to Marla

× 395.37

marla

Marla to Hectare

÷ 395.37

guntha

Hectare to Guntha

× 98.842

guntha

Guntha to Hectare

÷ 98.842

cent

Hectare to Cent

× 247.105

cent

Cent to Hectare

÷ 247.105

dec

Hectare to Decimal

× 247.105

dec

Decimal to Hectare

÷ 247.105

🏡

Acre Converters

10 tools

bigha

Acre to Bigha

× 1.600

bigha

Bigha to Acre

÷ 1.600

kanal

Acre to Kanal

× 8

kanal

Kanal to Acre

÷ 8

marla

Acre to Marla

× 160

marla

Marla to Acre

÷ 160

cent

Acre to Cent

× 100

cent

Cent to Acre

÷ 100

guntha

Acre to Guntha

× 40

guntha

Guntha to Acre

÷ 40

⇄

More Tools Converters

4 tools

m²

Square Meter to Acre

× 0.000247

ft²

Acre to Square Feet

× 43,560

km²

Square Kilometer to Acre

× 247.105

⇄

all

Universal Land Converter

13 units

Ready to Convert Hectares to Acres?

Use this free hectare to acre converter now. Type a hectare value, and the calculator returns the result in acres, square meters, and square feet instantly.

Start Converting

Hectare to Acre Converter

Convert Hectare ↔ Acre

What is a Hectare?

What is an Acre?

Hectare to Acre Formula

How to Convert Hectares to Acres

Step 1: Identify the hectare value

Hectare to Acre Conversion Table

Hectare to Acre Examples

Convert 0.4 Hectares to Acres

Hectare vs Acre: Size Comparison

Frequently Asked Questions

Land Area Conversion Tools

Hectare Converters

Hectare to Acre

Acre to Hectare

Hectare to Square Meter

Square Meter to Hectare

Hectare to Square Feet

Square Feet to Hectare

Hectare to Square Yard

Square Yard to Hectare

Hectare to Square Kilometer

Square Kilometer to Hectare

Hectare to Square Mile

Square Mile to Hectare

Indian Units Converters

Hectare to Bigha

Bigha to Hectare

Hectare to Kanal

Kanal to Hectare

Hectare to Marla

Marla to Hectare

Hectare to Guntha

Guntha to Hectare

Hectare to Cent

Cent to Hectare

Hectare to Decimal

Decimal to Hectare

Acre Converters

Acre to Bigha

Bigha to Acre

Acre to Kanal

Kanal to Acre

Acre to Marla

Marla to Acre

Acre to Cent

Cent to Acre

Acre to Guntha

Guntha to Acre

More Tools Converters

Square Meter to Acre

Acre to Square Feet

Square Kilometer to Acre

Universal Land Converter

Ready to Convert Hectares to Acres?

Hectare to Acre
Converter