Are to Hectare Converter
Enter the value that you want to convert are (a) to hectare (ha) or hectare to are.Also written as A to HA conversion.
1 are = 0.0100000 hectare
Formula: hectare = are value × 0.0100000
A to HA — are to hectare
10 are = 0.10000 hectare
Popular Area Converters:
How Are Relates to Hectare
Understanding the Are
Are (a) is a unit of area measurement. 1 are is equal to 0.0100000 hectare.
What is Hectare?
Hectare (ha) is a unit of area measurement. 1 hectare is equal to 100.0000000 are.
Area Measurements Around the World
Area conversions are essential in real estate, agriculture, and urban planning. Americans buy land in acres and homes in square feet. Europeans use square meters and hectares. Indian real estate uses bigha, biswa, and square yards. Japanese property listings use tsubo. Agricultural subsidies across countries require converting between local customary units and standardized metric hectares.
are to hectare metric conversion table
| 0.01 a | = | 0.00010 ha |
| 0.1 a | = | 0.00100 ha |
| 1 a | = | 0.01000 ha |
| 2 a | = | 0.02000 ha |
| 3 a | = | 0.03000 ha |
| 4 a | = | 0.04000 ha |
| 5 a | = | 0.05000 ha |
| 6 a | = | 0.06000 ha |
| 7 a | = | 0.07000 ha |
| 8 a | = | 0.08000 ha |
| 9 a | = | 0.09000 ha |
| 10 a | = | 0.10000 ha |
| 11 a | = | 0.11000 ha |
| 12 a | = | 0.12000 ha |
| 13 a | = | 0.13000 ha |
| 14 a | = | 0.14000 ha |
| 15 a | = | 0.15000 ha |
| 16 a | = | 0.16000 ha |
| 17 a | = | 0.17000 ha |
| 18 a | = | 0.18000 ha |
| 19 a | = | 0.19000 ha |
| 20 a | = | 0.20000 ha |
| 30 a | = | 0.30000 ha |
| 40 a | = | 0.40000 ha |
| 50 a | = | 0.50000 ha |
| 60 a | = | 0.60000 ha |
| 70 a | = | 0.70000 ha |
| 80 a | = | 0.80000 ha |
| 90 a | = | 0.90000 ha |
| 100 a | = | 1.00000 ha |
| 200 a | = | 2.00000 ha |
| 300 a | = | 3.00000 ha |
| 400 a | = | 4.00000 ha |
| 500 a | = | 5.00000 ha |
| 600 a | = | 6.00000 ha |
| 700 a | = | 7.00000 ha |
| 800 a | = | 8.00000 ha |
| 900 a | = | 9.00000 ha |
| 1000 a | = | 10.00000 ha |
How to Convert A to HA (Are to Hectare)?
We can convert are to hectare by using an example.
Example:
Convert 20 Are to Hectare?
We know 1 Are = 0.0100000 hectare; 1 Hectare = 100.0000000 are.
20 are = ___ha
20 × 0.0100000 = 0.20000 ha (we know 1 are = 0.0100000 hectare)
Answer:
20 are = 0.20000 hectare
Ares to Hectares: Navigating European Land Registry Units
The are and hectare are related metric area units where one hectare equals exactly 100 ares. Converting between them is common when reading European cadastral records, agricultural data, and historical property documents. The hectare (10,000 m²) is the standard for farm-scale land, while the are (100 m²) suits garden-scale plots.
- Start with the area in ares.
- Divide by 100 (or multiply by 0.01).
- The result is the area in hectares.
- This is exact: hectare means "hundred ares" (hecto- = 100).
Ares to Hectares Conversion Reference
Converting between these traditional European land units:
| Are | Hectare |
|---|---|
| 1 a | 0.01 ha |
| 5 a | 0.05 ha |
| 10 a | 0.1 ha |
| 25 a | 0.25 ha |
| 50 a | 0.5 ha |
| 100 a | 1 ha |
| 250 a | 2.5 ha |
| 500 a | 5 ha |
Examples: Ares to Hectares
Question 1: A property deed from 1920 records a farm as 875 ares. How many hectares?
Solution:
Area in hectares = ares ÷ 100
= 875 ÷ 100
= 8.75 hectares
Answer: 875 ares = 8.75 hectares — a small family farm.
Question 2: A village has 42 allotment plots of 3 ares each. What is the total in hectares?
Solution:
Total ares = 42 × 3 = 126 ares
Hectares = 126 ÷ 100 = 1.26 ha
Answer: 126 ares total = 1.26 hectares of allotment gardens.
Question 3: A forest cadastral map shows 4,200 ares of municipal woodland. Express in hectares.
Solution:
Area in hectares = ares ÷ 100
= 4,200 ÷ 100
= 42 hectares
Answer: 4,200 ares = 42 hectares of forest.
Practice: Ares to Hectares
Try solving these on your own to test your understanding:
- Convert 150 ares to hectares. (Answer: 1.5 ha)
- A farm field is 620 ares. How many hectares? (Answer: 6.2 ha)
- An orchard is 85 ares. Express in hectares. (Answer: 0.85 ha)
- A park is 3,000 ares. Convert. (Answer: 30 ha)
- A property boundary encloses 47 ares. How many hectares? (Answer: 0.47 ha)
Historical Context of the Are System
The are was introduced during the French Revolution as part of the metric system in 1795. It was designed to replace the many feudal land units (arpent, journal, perche) that varied by region. The elegance of 1 are = 100 m² and 1 hectare = 100 ares = 10,000 m² brought mathematical simplicity to land measurement. Though the SI system only officially recognizes m², km², and hectares, the are persists in legal documents across francophone and Germanic Europe.
Reading Historical Property Documents
When inheriting or purchasing property in rural Europe, you may encounter deeds written in ares, centiares, and hectares. A notation like "2 ha 35 a 17 ca" means 2 hectares + 35 ares + 17 centiares = 20,000 + 3,500 + 17 = 23,517 m². Understanding the are-to-hectare relationship is essential for interpreting these layered notations and comparing them with modern survey data in m² or hectares.
Key Takeaways
- 1 hectare = 100 ares exactly.
- 1 are = 0.01 hectares.
- The "hecto-" prefix means 100, explaining the relationship directly.
- European cadastral records use ares, centiares, and hectares together.
- Historical French metric reform created this clean decimal hierarchy.
Are to Hectare Conversion Formula
hectare = are × 0.0100000
1 are = 0.0100000 hectare
1 hectare = 100.0000000 are
Reverse: are = hectare × 100.0000000
Frequently Asked Questions
How many hectare are in 1 are?
There are 0.0100000 hectare in 1 are. To convert are to hectare, multiply the value by 0.0100000.
How do I convert are to hectare?
Multiply your are value by 0.0100000 to get the equivalent in hectare. For example, 5 are = 5 × 0.0100000 = 0.05000 hectare.
How do I convert hectare to are?
Multiply your hectare value by 100.0000000 to get the equivalent in are. Alternatively, divide by 0.0100000.
What is 10 are in hectare?
10 are is equal to 0.10000 hectare.
What is 100 are in hectare?
100 are is equal to 1.00000 hectare.