Acreage Calculator
Calculate acreage from square feet, square meters, hectares, or square miles. Visual area bar, real-world comparisons, square-side dimension, and conversion factors table.
Ares to Hectares Converter
Convert ares to hectares and hectares to ares. Visual 10×10 are grid, metric area hierarchy, quick conversion table, and square feet/meters output.
Ares (a)⧉
50.00
1 are = 100 m²
Hectares (ha)⧉
0.5000
1 ha = 100 ares
Square Meters (m²)⧉
5,000
Base metric unit
Square Feet (ft²)⧉
53,820
Imperial
Acres⧉
1.2355
Imperial land unit
Centiares (ca)⧉
5,000
1 ca = 1 m²
Are-to-Hectare Grid (50.0 ares)
Each square = 1 are (10×10 m). Full grid = 100 ares = 1 hectare.
Calculation
50.0000 ares ÷ 100 = 0.500000 hectares
50.00 ares × 100 m²/are = 5,000 m²
Quick Ares ↔ Hectares Table
| Ares | Hectares | m² | ft² |
|---|---|---|---|
| 1 | 0.01 | 100 | 1,076 |
| 5 | 0.05 | 500 | 5,382 |
| 10 | 0.10 | 1,000 | 10,764 |
| 25 | 0.25 | 2,500 | 26,910 |
| 50 | 0.50 | 5,000 | 53,820 |
| 100 | 1.00 | 10,000 | 107,639 |
| 200 | 2.00 | 20,000 | 215,278 |
| 500 | 5.00 | 50,000 | 538,195 |
| 1000 | 10.00 | 100,000 | 1,076,390 |
Planning notes, formulas, and examples
About the Ares to Hectares Converter
The are (a) is a metric unit of area equal to 100 square meters — or a 10×10 meter square. While less commonly used today than the hectare, the are remains the foundation of metric land measurement, and understanding the are-hectare relationship is essential for interpreting land records in many countries.
Exactly 100 ares make one hectare. This simple factor of 100 fits naturally into the decimal metric system: 1 ca (centiare) = 1 m², 1 are = 100 m², 1 hectare = 10,000 m². This converter converts between ares and hectares, and also shows results in square meters, square feet, acres, and centiares.
The visual grid makes the relationship crystal clear: each colored square represents one are, and a full 10×10 grid equals one hectare. This converter is valuable for interpreting European property documents, agricultural measurements, and cadastral records where ares are commonly used. It is particularly useful when translating legal descriptions into units familiar to international buyers and analysts.
When This Page Helps
The are is still used in European property records, French-speaking countries, and some Asian land registries. Converting between ares and hectares — and understanding where they sit in the metric area hierarchy — matters for international real estate, translation, and archival research where precision and consistency are essential in legal and technical workflows.
How to Use the Inputs
- Select Ares → Hectares or Hectares → Ares.
- Enter the area value.
- View conversions to six units including square feet and acres.
- Use the visual grid to understand the proportion of ares to one hectare.
- Check the Quick Conversion Table for common values.
- Expand the Metric Area Hierarchy for the full unit ladder.
Formula used
Ares to Hectares: ha = ares ÷ 100
Hectares to Ares: ares = ha × 100
1 are = 100 m² = 1,076.39 ft²
1 hectare = 100 ares = 10,000 m²Example Calculation
Result: 0.5 hectares = 5,000 m²
50 ares ÷ 100 = 0.5 hectares. Since 1 are = 100 m², then 50 ares = 5,000 m² = 53,820 ft². This is about 1.24 acres.
Tips & Best Practices
- The conversion is simply dividing (or multiplying) by 100 — one of the easiest unit conversions.
- Centiare (ca) = 1 m². The prefix "centi-" means 1/100 of an are.
- Decare (daa) = 10 ares = 1,000 m². Used in Norway, Turkey, and some other countries.
- The are was the original metric land unit; the hectare was derived from it (hect- = 100).
- French property documents often show area in ares and centiares (e.g., "12 a 43 ca" = 12 ares 43 centiares = 1,243 m²).
- In everyday use, hectares have largely replaced ares, but the are lives on in legal descriptions.
The Metric Area Hierarchy
The metric system organizes area units in powers of 10: centiare (1 m²) → are (100 m²) → decare (1,000 m²) → hectare (10,000 m²) → square kilometer (1,000,000 m²). This decimal structure makes conversion trivial — just move the decimal point.
Historical Context
The are was defined during the French Revolution as part of the new metric system. It was intended to replace the many inconsistent land measures used across French provinces. While the hectare became more practical for large-scale use, the are persisted in property law.
Reading European Property Documents
French notarial acts express area as "X ha Y a Z ca" — hectares, ares, and centiares. For example, "2 ha 35 a 17 ca" means 2 hectares + 35 ares + 17 centiares = 23,517 m². Understanding this notation is essential for anyone dealing with European real estate transactions.
Sources & Methodology
Last updated:
Frequently Asked Questions
Exactly 100. A hectare = 100 ares = 10,000 m². The prefix "hecto-" means 100.
An are (symbol: a) is a metric unit of area equal to 100 square meters, or a 10×10 meter square. It was introduced with the metric system in the 1790s.
Yes, primarily in property records, particularly in France, Belgium, Switzerland, and several other European and Asian countries. It is also used in some land registration systems. However, for most practical purposes, the hectare has replaced it.
A centiare (ca) = 1/100 of an are = 1 square meter. It is used in French property law to express precise areas without fractions.
An are (100 m²) is much smaller than an acre (4,047 m²). One acre = about 40.47 ares. Despite the similar names, they have different origins and sizes.
A decare (daa) = 10 ares = 1,000 m². It is commonly used in Turkey, Norway, and parts of Eastern Europe for agricultural land measurement.
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