Ares to Hectares Converter

A hectare is 100 ares: the name literally means “hundred ares”. Divide ares by 100 to get hectares.

How to use the Ares to Hectares Converter

1. Type the number of ares into the Ares field. Decimals such as 50 are fine.
2. Read the answer in Hectares – it updates as you type, with no button to press.
3. To convert the other way, type into Hectares and the ares are recalculated.
4. Press Copy results to copy both values with the page title, or Copy link to share this exact conversion.

This page converts only a ⇄ ha. Need a different unit? Use the general area converter, where you can choose any “from” and “to” unit.

How it works

Both units measure area, so they are always in the same ratio: one are equals 0.01 hectares. The calculator multiplies the number of ares you type by 0.01 to give hectares, and when you type into the hectares field it divides by the same factor to give ares. Because the ratio never changes, doubling the ares always doubles the hectares. Results are calculated at full precision and rounded only for display (up to eight decimal places, with very large or small values shown in scientific notation).

How to convert ares to hectares

1. Write down the value in ares, for example 100 a.
2. Multiply by the conversion factor 0.01 (because 1 are = 0.01 ha).
3. 100 × 0.01 = 1 ha.
4. To go back from hectares to ares, divide by 0.01 – or multiply by 100.

a to ha conversion table

What is an are?

An are is 100 m², a square 10 m on each side. It is the base of the hectare (100 ares) and is still used for small plots in parts of Europe and South Asia.

What is a hectare?

A hectare is 10,000 m², a square 100 m on each side. Farmland and forests are measured in hectares in most countries; one hectare is about 2.471 acres.

Common mistakes to avoid

Converting area with a length factor (1 m = 3.28 ft, but 1 m² = 10.76 ft², not 3.28 ft²), and assuming regional land units such as marla, bigha or katha have one standard size everywhere.