Floor Area Ratio (FAR) Calculator

Calculate Your Floor Area Ratio (FAR)

Please enter a valid total floor area.
Please enter a valid total plot area.

Quickly determine your property's Floor Area Ratio (FAR) to understand its development potential. This essential metric helps in real estate planning, ensuring compliance with zoning regulations and maximizing land use efficiency. Calculate FAR effortlessly for residential or commercial projects.

Formula:

The Floor Area Ratio (FAR) is calculated by dividing the Total Floor Area of all buildings on a lot by the Total Plot Area.

Formula:

FAR = Total Floor Area / Total Plot Area

Where:

  • FAR: Floor Area Ratio (a dimensionless number, often expressed as a decimal, e.g., 0.6, 1.5, 3.0)
  • Total Floor Area: The sum of the gross horizontal areas of the several floors of a building or buildings on a lot, measured from the exterior faces of exterior walls. (e.g., square feet, square meters)
  • Total Plot Area: The total horizontal area of the lot or parcel of land upon which the building(s) are located. (e.g., square feet, square meters)

Important: Both Total Floor Area and Total Plot Area must be in the same unit of measurement (e.g., both in square feet or both in square meters).

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