Expert Guide

House Planning
Floor Area Ratio (FAR) & FSI Calculator
Quality Inspector

Ensure your building design complies with local density regulations.
📐 Formula & Method
FAR = Total Built-up Area / Total Plot Area.
FAR = TotalBuiltUp / PlotArea
📋 Worked Example
3000 sq.ft building on 2000 sq.ft plot: FAR = 1.5.
❓ Frequently Asked Questions
FSI (Floor Space Index) is another term for FAR (Floor Area Ratio). It is the ratio of the total floor area of a building to the size of the plot of land on which it is built.
Professional House Estimation
Get a complete, itemized cost breakdown and material list for your entire project with Nirmansutra Pro.