Convert Hectare to Square Pole
Convert hectares to square poles instantly. 1 hectare = 395.3686103475 square pole — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Pole to Hectare converter for the reverse conversion.
Units explained
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 Pole
A square pole is identical to a square rod, equal to approximately 25.293 m². 'Pole' is a regional name used in some US and British contexts.
Identical to square rod and square perch; differs only in regional naming preference.
Square poles appear in some historical US land records, particularly in mid-Atlantic states with strong English colonial heritage.
Standardized via the 1959 International Yard and Pound Agreement.
Hectare to Square Pole conversion formula
The relationship between hectares and square poles:
To convert hectares to square poles, multiply the value in hectares by 395.3686103475. To reverse, multiply square poles by 0.0025292853.
How to use this converter
Type a value into the calculator. The result in square poles updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Square Pole to Hectare converter for the reverse direction.
Step-by-step: convert hectares to square poles
- Write down the value in hectares (ha).
- Multiply that value by the factor 395.3686103475.
- The product is the equivalent value in square poles (pole²).
- To reverse, multiply the square pole value by 0.0025292853.
Worked examples
Example 1 — Convert 1 ha to pole²:
1 × 395.3686103475 = 395.3686103475 pole²
Example 2 — Convert 100 ha to pole²:
100 × 395.3686103475 = 39536.8610347465 pole²
Real-world example — Coastal cruise distances
A 10-hectare coastal sailing route converts to a different value in square poles — useful for cruise operators who switch between maritime, aviation, and road-distance units depending on the leg of the trip.
10 ha × 395.3686103475 = 3953.6861034746 pole²
Real-world example — Road-sign distances across systems
A 100-hectare road sign converts cleanly into square poles — exactly the conversion drivers planning trips abroad rely on when reading road signs in a different measurement system.
100 ha × 395.3686103475 = 39536.8610347465 pole²
Real-world example — Endurance race distances
A 50-hectare cycling or running race converts to a recognizable distance in square poles. Endurance athletes coming from a different measurement system use this conversion to compare training plans across regions.
50 ha × 395.3686103475 = 19768.4305173732 pole²
Hectare to Square Pole conversion table
Standard reference values for converting hectares to square poles:
| Hectare [ha] | Square Pole [pole²] |
|---|---|
| 0.01 | 3.9536861035 |
| 0.1 | 39.5368610347 |
| 1 | 395.3686103475 |
| 2 | 790.7372206949 |
| 3 | 1186.1058310424 |
| 4 | 1581.4744413899 |
| 5 | 1976.8430517373 |
| 10 | 3953.6861034746 |
| 20 | 7907.3722069493 |
| 30 | 11861.0583104239 |
| 40 | 15814.7444138986 |
| 50 | 19768.4305173732 |
| 100 | 39536.8610347465 |
| 500 | 197684.3051737323 |
| 1000 | 395368.6103474646 |
Frequently asked questions
How many square poles is 1 hectare?
How do I convert hectares to square poles?
How do I convert square poles back to hectares?
How many square poles is 100 hectares?
Popular area unit conversions
Convert Hectare to other area units
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Metric / SI (15 units)
Imperial / US Customary (15 units)
US Survey (5 units)
Indian Subcontinent (16 units)
Other Regional (10 units)
Scientific / Physics (5 units)
Historical / Pre-metric European (6 units)
Sources & references
Conversion factor (1 ha = 395.3686103475 pole²) 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 Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.