Ares to Hectares
Convert ares to hectares instantly. 1 a = 0.01 ha. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert ares to hectares
To convert ares to hectares, divide by 100 (multiply by 0.01). The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
ha = a × 0.01
Ares to Hectares conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| Ares | Hectares |
|---|---|
| 1 a | 0.01 ha |
| 2 a | 0.02 ha |
| 3 a | 0.03 ha |
| 5 a | 0.05 ha |
| 10 a | 0.1 ha |
| 20 a | 0.2 ha |
| 25 a | 0.25 ha |
| 50 a | 0.5 ha |
| 100 a | 1 ha |
| 500 a | 5 ha |
| 1,000 a | 10 ha |
What is a are?
100 square metres, the root of the hectare. Still used in some European land records.
What is a hectare?
10,000 square metres, or about 2.471 acres. The global standard for farmland.
The formula
ha = a × 0.01
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the Ares to Hectares
- Type the number of ares you want to convert.
- Read the result in hectares straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked hectares to ares page.
Ares to Hectares — frequently asked questions
How many hectares are in a are?
One are equals 0.01 ha. ha = a × 0.01
What is the formula to convert ares to hectares?
The formula is ha = a × 0.01. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert hectares back to ares?
Divide instead of multiplying: one hectare is 100 a. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this ares to hectares free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the ares to hectares.
- ares to hectares
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 15, 2026 · Calculation runs client-side · No data collected · Report an error