A US public land survey section is one square mile or 640 acres.
Sections to Square Gigameters Converter — section to Gm2
Convert Section (section) to Square Gigameter (Gm2) using the exact conversion factor (1 section = 2.589988e-12 square gigameter). See the formula, worked examples, and conversion table.
Sections to Square Gigameters converter
Converter
Area Converter
Convert land, construction, mapping, survey, and scientific area units.
Context values
Some unit families need one extra value for a physically accurate result.
Square metric area unit.
Result = input x 2.58998811e+6 / 1e+18.
Area uses the square meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Sections to Square Gigameters
Comparing Section and Square Gigameter is common in agriculture and real estate, where US land is typically measured in acres and most of the rest of the world uses hectares. Specifically: A US public land survey section is one square mile or 640 acres, and square metric area unit.
Formula
square gigameters = sections × 2.589988e-12
This factor comes from each unit's defined relationship to the category's base unit: 1 section equals 2589988.11034 base units, and 1 square gigameter equals 1e+18 base units, so dividing one by the other gives the direct section-to-square gigameter factor of 2.589988e-12.
Simple example
1 section × 2.589988e-12 = 2.589988e-12 Gm2
1 section = 2.589988e-12 square gigameters.
Real-world example
10 section × 2.589988e-12 = 2.589988e-11 Gm2
10 sections = 2.589988e-11 square gigameters.
Conversion table
| Section (section) | Square Gigameter (Gm2) |
|---|---|
| 1 section | 2.589988e-12 Gm2 |
| 5 section | 1.294994e-11 Gm2 |
| 10 section | 2.589988e-11 Gm2 |
| 25 section | 6.47497e-11 Gm2 |
| 50 section | 1.294994e-10 Gm2 |
| 100 section | 2.589988e-10 Gm2 |
Reverse conversion: Square Gigameter to Section
2.589988e-12 Gm2 × 386102158500 = 0.9999999574 section
2.589988e-12 square gigameters = 0.9999999574 sections.
sections = square gigameters × 386102158542
For a page dedicated to this direction, see Square Gigameter to Section.
Understanding the Section (section)
A US public land survey section is one square mile or 640 acres.
Understanding the Square Gigameter (Gm2)
Square metric area unit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many square gigameters are in 1 section?
1 section equals 2.589988e-12 square gigameters, using the exact defined conversion factor rather than an estimate.
How do I convert section to square gigameter?
Multiply the section value by 2.589988e-12. The converter above does this instantly to whatever precision you set.
How do I convert square gigameter back to section?
Use the reverse factor: 1 square gigameter equals 386,102,158,500 sections. You can also use the swap control in the converter above to flip the direction instantly.
What is a section?
Section (section) is a unit of area.
What is a square gigameter?
Square Gigameter (Gm2) is a unit of area.
Is the section to square gigameter conversion exact?
Yes. Both section and square gigameter are defined by fixed standards rather than physical artifacts, so the factor of 2.589988e-12 used above is exact to as many digits as you choose to display.