Are to Hectare Converter

Area Converter

20 units available

Decimals:

From

To

0.01

1 a = 0.01 ha

Formula:

ha = a × 0.01

With your value: 1 a = 0.01 ha

How big is that?

Everyday references on a logarithmic scale, all expressed in are so you can sanity-check the result.

A4 sheet (1/1.6e+3 your value)0.000625 a

Parking space (1/8.0 your value)0.125 a

Your value1.00 a

Tennis court (2.6× your value)2.61 a

Football pitch (71× your value)71.4 a

Hectare (1.0e+2× your value)100 a

Other Are to Hectare conversions

2 a to ha 3 a to ha 4 a to ha 5 a to ha 6 a to ha 7 a to ha 8 a to ha

Are to Hectare Conversion Table

Are (a)	Hectare (ha)
0.5	0.005
1	0.01
2	0.02
5	0.05
10	0.1
15	0.15
20	0.2
25	0.25
50	0.5
100	1
250	2.5
500	5
1000	10

Hectare to Are Conversion Table

Hectare (ha)	Are (a)
0.5	50
1	100
2	200
5	500
10	1,000
15	1,500
20	2,000
25	2,500
50	5,000
100	10,000
250	25,000
500	50,000
1000	100,000

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Are (a)

Area

Exact conversion

Derived from the square metre via the length definitions above.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Hectare (ha)

Area

Exact conversion

Derived from the square metre via the length definitions above.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Are to Hectare

To convert from Are (a) to Hectare (ha), multiply the value by 0.01.

Formula: ha = a × 0.01

Reverse: a = ha × 100

Step-by-Step Example

Start with your value in Are. For example: 5 a
Multiply by the conversion factor: 5 x 0.01
The result is: 0.05 ha

About Are

The are (a) is a unit of area. One are equals 100 square metres. UnitConvertLab converts it against every other area unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: area calculations, engineering and science, education.

About Hectare

The hectare equals 10,000 square meters or about 2.471 acres. It is the primary unit for land measurement in most countries.

Common uses: agriculture, forestry, land planning.

Frequently Asked Questions

How many Hectare are in 1 Are?

There are exactly 0.01 Hectare in 1 Are. This means the conversion factor from Are to Hectare is 0.01.

What is the formula to convert Are to Hectare?

The formula to convert Are to Hectare is: ha = a × 0.01. For example, to convert 10 Are to Hectare, you would multiply 10 by 0.01.

What is a Are?