Land & Property Unit Converter
Convert between Square Feet, Square Metre, Square Yard (Gaj), Acre, Hectare and Bigha in one click — built for buyers, investors and brokers evaluating property in and around Gurugram.
- State-wise Bigha values
- Instant, accurate results
- No sign-up required
Apartment Loading & Efficiency Calculator
Every high-rise quotes a "Super Built-up Area", but you only live in the Carpet Area. This tool works out the loading percentage in between — or estimates your carpet area from a builder's super built-up figure.
- RERA carpet area logic
- Typical high-rise loading %
- Built-up area estimate
Efficiency Calculator
Choose what you already know.
Typical Loading % by Building Type
Loading percentage rises with the number of lifts, lobbies, staircases and shared amenities a high-rise offers. These are indicative industry ranges — always confirm exact figures from the RERA-approved project brochure.
| Building Type | Typical Loading | Efficiency (Carpet ÷ Super Built-up) |
|---|---|---|
| Independent / Builder Floor | 5%–10% | 90%–95% |
| Low-rise Apartment (G+4) | 15%–20% | 80%–85% |
| Mid-rise Apartment | 20%–25% | 75%–80% |
| High-rise Apartment | 25%–35% | 65%–75% |
| Ultra-luxury High-rise | 35%–50% | 50%–65% |
Common Land Measurement Conversions
A quick-glance table for the conversions Gurugram property buyers search for most.
| From | To | Equals |
|---|---|---|
| 1 Square Yard | Square Feet | 9 sq ft |
| 1 Gaj | Square Feet | 9 sq ft |
| 1 Acre | Square Feet | 43,560 sq ft |
| 1 Acre | Gaj / Sq Yard | 4,840 gaj |
| 1 Acre | Bigha (Haryana) | ≈ 1.6 bigha |
| 1 Hectare | Square Feet | 1,07,639 sq ft |
| 1 Hectare | Acre | 2.47 acre |
| 1 Square Metre | Square Feet | 10.76 sq ft |
| 1 Bigha (Haryana) | Square Feet | 27,225 sq ft |
Understanding Land Measurement Units in India
Every state uses its own local unit, which is why the same plot can be quoted differently depending on who you're speaking to. Here's a plain-language guide.
Square Feet & Square Metre
The standard units used in builder floor plans, RERA documents and carpet area disclosures across India. 1 square metre equals roughly 10.76 square feet.
Gaj / Square Yard
Gaj is the everyday North Indian term for a square yard, widely used in Gurugram, Delhi and Punjab for plots and independent floors. 1 Gaj equals 9 square feet.
Acre & Hectare
Used for larger land parcels, farmhouses and township-scale developments. 1 acre is 43,560 sq ft, and 1 hectare is about 2.47 acres.
Bigha
A traditional revenue unit whose size changes from state to state — and sometimes district to district. Always confirm the exact local value before finalising a deal.
Carpet, Built-up & Super Built-up Area
Carpet Area is the usable space within your walls — the only figure RERA requires builders to state. Built-up Area adds wall thickness and balconies. Super Built-up Area adds a share of lobbies, lifts and staircases on top of that.
Loading %
The gap between what you pay for and what you actually live in. A high-rise with more lifts, lobbies and amenities carries a higher loading percentage than a low-rise building.
Frequently Asked Questions
How many square feet are there in 1 Bigha?
It depends on the state. In Haryana, 1 Bigha is commonly taken as 27,225 sq ft, while Punjab, Uttar Pradesh, West Bengal and other states use different local values. Always confirm the local revenue department figure before a transaction.
How many Gaj are there in 1 Acre?
1 Acre equals 4,840 square yards, and since 1 Gaj is the same as 1 square yard, 1 Acre is also equal to 4,840 Gaj.
Is Gaj the same as square yard?
Yes. Gaj is simply the commonly used North Indian term for square yard, so 1 Gaj equals 1 square yard, which equals 9 square feet.
What is loading percentage in a high-rise apartment?
Loading percentage is the extra area you pay for beyond your Carpet Area, covering your share of lobbies, staircases, lifts and other common areas. It is calculated as (Super Built-up Area minus Carpet Area) divided by Super Built-up Area, multiplied by 100.
What is the difference between Carpet Area and Super Built-up Area?
Carpet Area is the actual usable floor space within your walls, and the only figure RERA requires builders to disclose. Super Built-up Area adds wall thickness, balconies and a proportionate share of common areas like lobbies and lifts on top of the Carpet Area.
How many square feet are there in 1 Hectare?
1 Hectare equals approximately 1,07,639 square feet, or roughly 2.47 acres.
Disclaimer: All figures shown are indicative and for general reference only. Bigha, loading % and area conversions vary by state, project and builder — please verify exact values with official records or your builder before making any decision.