PLSS · U.S. Public Land Survey System
US Land Measurement
Converter
Convert acres, square feet, sections, townships, and metric land units instantly — built around how land is actually surveyed and sold across the United States.
US Survey & Real Estate
Metric & International
Common conversions
Quick reference
| Unit | Equal to (US) | Equal to (Metric) |
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Why sections and townships?
A standard township is divided into 36 numbered sections, each one square mile — 640 acres. This grid, laid out in the 1780s, still defines property lines across most of the US today.