Convert Square Perch to Hectare
Convert square perches to hectares instantly. 1 square perch = 0.0025292853 hectare — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Hectare to Square Perch converter for the reverse conversion.
Units explained
Square Perch
A square perch is identical to a square rod, equal to approximately 25.293 m². 'Perch' is the older English regional name for the same unit.
Identical in value to square rod and square pole; differs only in regional naming preference. 'Perch' is more commonly used in British and Irish historical contexts.
Square perches survive in some historical British property records, particularly in Ireland where the unit had legal status until the metric transition.
Standardized via the 1959 International Yard and Pound Agreement.
Hectare
A hectare is a metric unit of area equal to 10,000 square meters, or one square hectometer. It is the most widely used metric unit for land measurement worldwide.
Defined as 100 ares, equal to one square hectometer. The name was introduced in 1795 in France as part of the metric system.
Hectares are the standard unit for agricultural land measurement worldwide except in the US (which uses acres). 1 hectare equals 2.47105 acres. In India, hectares are used in modern agricultural census and land records alongside traditional regional units.
Adopted in France in 1795; standardized internationally through the SI system.
Square Perch to Hectare conversion formula
The relationship between square perches and hectares:
To convert square perches to hectares, multiply the value in square perches by 0.0025292853. To reverse, multiply hectares by 395.3686103475.
How to use this converter
Type a value into the calculator. The result in hectares updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Hectare to Square Perch converter for the reverse direction.
Step-by-step: convert square perches to hectares
- Write down the value in square perches (perch²).
- Multiply that value by the factor 0.0025292853.
- The product is the equivalent value in hectares (ha).
- To reverse, multiply the hectare value by 395.3686103475.
Worked examples
Example 1 — Convert 1 perch² to ha:
1 × 0.0025292853 = 0.0025292853 ha
Example 2 — Convert 100 perch² to ha:
100 × 0.0025292853 = 0.2529285264 ha
Square Perch to Hectare conversion table
Standard reference values for converting square perches to hectares:
| Square Perch [perch²] | Hectare [ha] |
|---|---|
| 0.01 | 2.529285e-5 |
| 0.1 | 0.0002529285 |
| 1 | 0.0025292853 |
| 2 | 0.0050585705 |
| 3 | 0.0075878558 |
| 4 | 0.0101171411 |
| 5 | 0.0126464263 |
| 10 | 0.0252928526 |
| 20 | 0.0505857053 |
| 30 | 0.0758785579 |
| 40 | 0.1011714106 |
| 50 | 0.1264642632 |
| 100 | 0.2529285264 |
| 500 | 1.264642632 |
| 1000 | 2.529285264 |
Frequently asked questions
How many hectares is 1 square perch?
How do I convert square perches to hectares?
How do I convert hectares back to square perches?
How many hectares is 100 square perches?
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Metric / SI (5 units)
Imperial / US Customary (14 units)
Sources & references
Conversion factor (1 perch² = 0.0025292853 ha) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.