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sci.floor-area-ratio-FAR-zoning Calculator
Calculates Floor Area Ratio (FAR) = gross floor area/lot area and maximum building floor area from zoning regulations. FAR = 10 in Manhattan's Midtown allows a 10-storey building to cover the entire lot or a 40-storey building covering 25% — FAR controls density without specifying building height directly.
Inputs
Lot Area M2
Two-dimensional surface extent (m²). For complex shapes, break into simpler sub-shapes and sum.
Far Limit
Two-dimensional surface extent (m²). For complex shapes, break into simpler sub-shapes and sum.
Coverage Pct
Age in completed years. Many health and fitness formulas adjust for age.
Height Stories
Vertical measurement. For health calculators, typically standing height without shoes.
Results
maximum gross floor area GFA (m²)
The largest value in the dataset or feasible range.
building footprint at max coverage (m²)
The fraction of the total that is protected, tested, or accounted for. Higher coverage reduces risk of gaps.
achieved FAR with footprint × stories
Sample size or count used in the calculation.
remaining development potential (m²)
Sample size or count used in the calculation.
FAR = GFA / Lot Area | GFA_max = FAR × Lot
The computed two-dimensional surface area.
density class
The classification assigned based on the computed value.