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Property Calculator
Illustrative deal math, reviewed October 2026 — state rates and slabs change, so confirm figures with official schedules or an advisor before registering or signing.
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From RERA carpet area and a loading percent, built-up = carpet × (1 + loading) and super built-up = built-up × 1.25 for common spaces: 100 m² at 25% loading is 125 m² built-up and 156.25 m² super built-up. The page makes the builder's loading explicit instead of letting one headline number hide it.
Enter the RERA carpet figure from the agreement (the only consistently defined area) and the project's stated loading — often 20–40%, always negotiable and project-specific. If two flats show equal super built-up but different loadings, the lower-loading one gives you more carpet: that comparison is the entire point of this page.
It does not verify the builder's loading, read your agreement, or price the flat — and the 1.25 super built-up factor is this estimate's convention for common spaces, not a legal definition.
Super built-up uses a fixed 25% convention — not a legal definition.
Carpet area, because it is defined consistently under RERA. Loading percentages differ, so super built-up figures are not directly comparable.
Often in the 20–40% range, but it varies widely by project — ask the builder for the exact figure.
No — RERA defines carpet area. Super built-up is a marketing convention, which is exactly why you should compare on carpet.
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