Convert Land and Floor Area Units
Area measurements can be confusing in India. A flat is sold by the square foot, land records may use square metres or hectares, a farmer talks in acres, and a property dealer in Delhi quotes the plot in gaj. This area converter lets you switch between 10 common metric and imperial units in one step, so you can compare property listings, check documents or solve homework problems with confidence.
How to Use the Area Converter
- Type the area in the From box.
- Pick the unit you have and the unit you need.
- The converted value appears immediately, along with the formula. You can also type in the result box to convert backwards, or swap the units with one click.
Area Conversion Table
| Unit | Square feet | Square metres |
|---|---|---|
| 1 square metre | 10.764 | 1 |
| 1 square yard (gaj) | 9 | 0.8361 |
| 1 acre | 43,560 | 4,046.86 |
| 1 hectare | 1,07,639 | 10,000 |
| 1 square kilometre | 1,07,63,910 | 10,00,000 |
| 1 square mile | 2,78,78,400 | 25,89,988 |
Useful relationships: 1 hectare = 2.471 acres, 1 square kilometre = 100 hectares, and 1 square mile = 640 acres.
Worked Examples
Flat size in square metres
A 2BHK with a carpet area of 850 sq ft is 850 ÷ 10.764 = 78.97 m². This is handy when comparing with listings or approved building plans that use metric units.
Plot size in gaj
A plot measuring 30 ft × 60 ft = 1,800 sq ft. Divide by 9 to get 200 gaj (square yards).
Farm land in hectares
5 acres = 5 × 0.4047 = 2.02 hectares. Government schemes and land records often use hectares, so this conversion comes up frequently for farmers.
Traditional Indian Land Units
Many regions still use local units such as bigha, biswa, kanal, marla, guntha, cent and ground. Their sizes vary widely between states — a bigha in Rajasthan is very different from a bigha in Assam or West Bengal. Approximate examples:
- Guntha (Maharashtra, Karnataka): about 1,089 sq ft (40 guntha = 1 acre)
- Cent (Kerala, Tamil Nadu): 435.6 sq ft (100 cents = 1 acre)
- Marla (Punjab, Haryana): commonly 272.25 sq ft, though some areas use 225 sq ft
- Kanal: 20 marla
Because these values differ by location, confirm the local standard with your tehsil or land records office, convert it to square feet, and then use this tool for any further conversion.
Carpet, Built-up and Super Built-up Area
When buying property, the same flat can be described with three different numbers:
- Carpet area — the area you can actually lay a carpet on, inside the walls.
- Built-up area — carpet area plus walls and balconies, often 10–15% more.
- Super built-up area — built-up area plus a share of lobbies, lifts and stairs, often 25–35% more than carpet area.
Always compare prices per square foot of carpet area. RERA requires developers to disclose it.
Related Converters
- Length Converter — convert plot dimensions between feet and metres.
- Volume Converter — litres, cubic metres and gallons.
- Percentage Calculator — work out loading between carpet and super built-up area.