Use this free carpet vs super area calculator to check your flat’s loading percentage and the real rate per sq ft of carpet area. Enter the areas from the brochure below.
1. Loading and real rate calculator
2. No carpet area in the brochure? Estimate it
This is only a guess. Always ask the developer for the actual carpet area in writing.
Short answer: This free carpet vs super area calculator shows your flat's loading percentage and the real rate you pay per sq ft of carpet area. Add the price if you have it, and you will see the numbers in seconds.
Why bother? Because builders quote the rate on super area, while you live on the carpet area. The gap between the two can be 30 to 45 percent. As a result, a rate that looks fair on paper can be far higher on the area you actually use.
How the carpet vs super area calculation works
The calculator uses two simple formulas. Loading percentage equals super area minus carpet area, divided by super area, times 100. The real rate equals total price divided by carpet area.
Here is a worked example. In one Emaar Serenity Hills 3 BHK we analysed, the carpet area is 947 sq ft and the super area is 1,700 sq ft. That gives a loading of about 44.3 percent. At ₹2.98 crore, the rate on super area is about ₹17,500 per sq ft, but the rate on carpet area is roughly ₹31,470. Our full breakdown is in the post on Emaar Serenity Hills carpet vs super area.
Carpet area, built-up area and super area explained
Carpet area is the net usable floor space inside your flat. Under RERA, it excludes external walls, service shafts, and the exclusive balcony and open terrace, but includes internal partition walls. Super area is the carpet area plus a share of common spaces such as lobbies, lifts, stairs and the clubhouse.
| Term | What it includes | Why it matters |
|---|---|---|
| Carpet area | Usable floor area inside the walls | The space you actually live in |
| Built-up area | Carpet area plus wall thickness, balcony and similar areas | Sits between carpet and super area |
| Super area | Built-up area plus a share of common areas | The base most builders use to quote a price |
RERA does not define super area. It is a commercial convention. For that reason, ask for the carpet area in writing and compare projects on that figure.
How to use the result before you book
- Get both areas from the brochure or the agreement, not from a broker's message.
- Run the numbers and note the real rate per sq ft of carpet area.
- Compare two or three similar projects on that carpet rate, not on the super area rate.
- If loading looks high, ask what the common areas include.
- Check the carpet area against the project's HRERA registration details.
Looking at new projects? Our comparison of new launch projects in Gurgaon 2026 and the guide to Golf Course Extension Road projects are good places to start.
FAQs: carpet vs super area calculator
What is loading in real estate?
Loading is the extra area added to your carpet area to reach the super area. It covers your share of common spaces such as lobbies, lifts, staircases and the clubhouse. A higher loading means you pay for more area that you cannot use inside your flat.
How do I calculate loading percentage?
Subtract the carpet area from the super area, divide the result by the super area, and multiply by 100. For example, 1,700 sq ft super and 947 sq ft carpet gives (1,700 − 947) ÷ 1,700 × 100, which is about 44.3 percent loading.
What is a normal loading percentage in Gurgaon?
There is no legal limit, and it varies by project. Tower density, lift lobbies and clubhouse size all push it up. Instead of chasing one benchmark, compare the rate per sq ft of carpet area across similar projects.
Should I pay on carpet area or super area?
Carpet area is the space you actually use, so it is the fairest base for comparing prices. Builders often quote on super area because the rate looks lower. Convert that rate to a carpet rate first, then compare.
Does RERA define super area?
No. RERA defines carpet area, but super area is a commercial term developers use. Because of this, always ask for the carpet area in writing and match it with the project's registration details before you pay any amount.
This calculator gives indicative figures from the numbers you enter. It is not legal or financial advice. Verify all areas, prices and charges with the developer and the HRERA record before paying any amount.