Convert Square Kilometer to Section
Convert square kilometers to sections instantly. 1 square kilometer = 0.3861021585 section — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Section to Square Kilometer converter for the reverse conversion.
Units explained
Square Kilometer
A square kilometer is a metric unit of area equal to 1,000,000 m² (one million square meters), or 100 hectares. It is used for measuring large land areas, regional geography, and country-scale statistics.
Derived by squaring the kilometer (1000 m). The kilo- prefix comes from the Greek 'chilioi' (thousand).
Square kilometers express the area of cities, districts, lakes, forests, and entire countries. India's total area is approximately 3,287,263 km². 1 km² equals 100 hectares or about 247.105 acres.
Kilometer has been part of the metric system since 1795.
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.
Square Kilometer to Section conversion formula
The relationship between square kilometers and sections:
To convert square kilometers to sections, multiply the value in square kilometers by 0.3861021585. To reverse, multiply sections by 2.5899881103.
How to use this converter
Type a value into the calculator. The result in sections updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Section to Square Kilometer converter for the reverse direction.
Step-by-step: convert square kilometers to sections
- Write down the value in square kilometers (km²).
- Multiply that value by the factor 0.3861021585.
- The product is the equivalent value in sections (sec).
- To reverse, multiply the section value by 2.5899881103.
Worked examples
Example 1 — Convert 1 km² to sec:
1 × 0.3861021585 = 0.3861021585 sec
Example 2 — Convert 100 km² to sec:
100 × 0.3861021585 = 38.6102158542 sec
Square Kilometer to Section conversion table
Standard reference values for converting square kilometers to sections:
| Square Kilometer [km²] | Section [sec] |
|---|---|
| 0.01 | 0.0038610216 |
| 0.1 | 0.0386102159 |
| 1 | 0.3861021585 |
| 2 | 0.7722043171 |
| 3 | 1.1583064756 |
| 4 | 1.5444086342 |
| 5 | 1.9305107927 |
| 10 | 3.8610215854 |
| 20 | 7.7220431708 |
| 30 | 11.5830647563 |
| 40 | 15.4440863417 |
| 50 | 19.3051079271 |
| 100 | 38.6102158542 |
| 500 | 193.0510792712 |
| 1000 | 386.1021585424 |
Frequently asked questions
How many sections is 1 square kilometer?
How do I convert square kilometers to sections?
How do I convert sections back to square kilometers?
How many sections is 100 square kilometers?
Popular area unit conversions
Convert Square Kilometer to other area units
Show all Square Kilometer conversions
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)
Sources & references
Conversion factor (1 km² = 0.3861021585 sec) 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.