Floor Area Ratio (FAR) Calculator
Enter plot size, FAR and site coverage ratio to calculate total buildable area, building footprint and the theoretical floor count.
Frequently asked questions
How is FAR (KAKS) calculated?
Total buildable area equals plot area multiplied by the FAR. On a 1,000 m² plot with a FAR of 1.50, you may build 1,500 m². The FAR is stated on the parcel’s zoning status document.
What is the difference between TAKS and KAKS?
TAKS limits the ground footprint, while KAKS (FAR) limits the total area of all floors. On a 1,000 m² plot with TAKS 0.30 and FAR 1.50 the building covers at most 300 m² and totals 1,500 m² — roughly five floors.
Why is the floor count not a whole number?
FAR ÷ TAKS is a theoretical ceiling; in practice setbacks, height limits and roof or basement rules decide the floors. Use this as a feasibility indicator, not a substitute for an approved project.
Are some areas excluded from FAR?
Yes. Some common areas, shelters, parking and technical spaces may be excluded by regulation. Saleable area therefore differs from FAR area; check the municipality’s zoning regulation for the exact treatment.
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