Floor Area Ratio (FAR) and Floor Space Index (FSI) are identical metrics representing the ratio of total floor area across all building levels to the plot area.

What is the formula for FSI?

FSI = Total Built-up Area / Plot Area. For example, on a 2000 sq ft plot with an FSI of 1.5, the total buildable floor area is 3000 sq ft.

FAR / FSI Calculator

Free online FAR / FSI Calculator. Check permissible built-up limits, floors, and utilized area ratios according to municipal bylaws.

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