Convert Section to Hectare
Convert sections to hectares instantly. 1 section = 258.9988110336 hectare — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Hectare to Section converter for the reverse conversion.
Units explained
Section
A section is a unit of area used in the US Public Land Survey System, equal to 1 square mile (640 acres or approximately 2.59 km²).
Defined by the Land Ordinance of 1785 as 1/36 of a township. Sections are numbered 1-36 within each township.
Sections are the fundamental unit of US public land records in PLSS states (essentially the central and western US). Property descriptions like 'NE quarter of section 14, township 3 north, range 2 east' use this system.
Defined by the US Land Ordinance of 1785.
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.
Section to Hectare conversion formula
The relationship between sections and hectares:
To convert sections to hectares, multiply the value in sections by 258.9988110336. To reverse, multiply hectares by 0.0038610216.
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 Section converter for the reverse direction.
Step-by-step: convert sections to hectares
- Write down the value in sections (sec).
- Multiply that value by the factor 258.9988110336.
- The product is the equivalent value in hectares (ha).
- To reverse, multiply the hectare value by 0.0038610216.
Worked examples
Example 1 — Convert 1 sec to ha:
1 × 258.9988110336 = 258.9988110336 ha
Example 2 — Convert 100 sec to ha:
100 × 258.9988110336 = 25899.88110336 ha
Section to Hectare conversion table
Standard reference values for converting sections to hectares:
| Section [sec] | Hectare [ha] |
|---|---|
| 0.01 | 2.5899881103 |
| 0.1 | 25.8998811034 |
| 1 | 258.9988110336 |
| 2 | 517.9976220672 |
| 3 | 776.9964331008 |
| 4 | 1035.9952441344 |
| 5 | 1294.994055168 |
| 10 | 2589.988110336 |
| 20 | 5179.976220672 |
| 30 | 7769.964331008 |
| 40 | 10359.952441344 |
| 50 | 12949.94055168 |
| 100 | 25899.88110336 |
| 500 | 129499.4055168 |
| 1000 | 258998.8110336 |
Frequently asked questions
How many hectares is 1 section?
How do I convert sections to hectares?
How do I convert hectares back to sections?
How many hectares is 100 sections?
Popular area unit conversions
Convert Section to other area units
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Metric / SI (5 units)
Imperial / US Customary (3 units)
Sources & references
Conversion factor (1 sec = 258.9988110336 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 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.