To convert square feet to decimal, divide by 435.6. One decimal (dismil) is 435.6 square feet, so 1 square foot is 0.002296 decimal. For example, 1,000 square feet is 2.3 decimal.
The one number to remember: 435.6
A decimal is one hundredth of an acre. An acre is 43,560 square feet, so a decimal is 43,560 ÷ 100 = 435.6 square feet. This size is fixed. It is the same in Bihar, Jharkhand, Odisha and West Bengal, where land is commonly bought in decimal (dismil), and it equals the cent used in south India.
Step by step
Decimal = square feet ÷ 435.6
Say you measured a plot as 45 ft by 40 ft.
- Area: 45 × 40 = 1,800 square feet.
- Divide: 1,800 ÷ 435.6 = 4.1322.
- Round: about 4.13 decimal.
The reverse is just as easy: decimal × 435.6 = square feet. So 4 decimal is 1,742.4 square feet.
Square feet to dismil table
These are the sizes people search for most, rounded to two decimals.
| Square feet | Decimal (dismil) |
|---|---|
| 720 | 1.65 |
| 1,000 | 2.3 |
| 1,200 | 2.75 |
| 1,500 | 3.44 |
| 1,600 | 3.67 |
| 1,800 | 4.13 |
| 2,000 | 4.59 |
| 2,200 | 5.05 |
| 2,400 | 5.51 |
| 2,500 | 5.74 |
| 3,000 | 6.89 |
| 4,000 | 9.18 |
| 5,000 | 11.48 |
| 10,000 | 22.96 |
Square feet to decimal table
| Square feet | Decimal |
|---|---|
| 100 | 0.229568 |
| 200 | 0.459137 |
| 300 | 0.688705 |
| 500 | 1.1478 |
| 600 | 1.3774 |
| 800 | 1.8365 |
| 900 | 2.0661 |
| 1,000 | 2.2957 |
| 1,200 | 2.7548 |
| 1,500 | 3.4435 |
| 1,800 | 4.1322 |
| 2,000 | 4.5914 |
| 2,400 | 5.5096 |
| 3,000 | 6.8871 |
| 5,000 | 11.4784 |
| 10,000 | 22.9568 |
Why 720 square feet shows up so often
720 square feet is one katha in West Bengal and in Ranchi, as commonly used locally. In decimal that is 1.6529. So a 3 katha plot in Kolkata is 2,160 square feet, or 4.96 decimal. In Patna, where the commonly used katha is 1,361.25 square feet, 1 katha is 3.125 decimal. Bihar's katha changes by district, so check the local value. See katha to decimal.
When to switch to acres
Decimal works well for house plots. For bigger land it gets clumsy. Once a figure passes 100 decimal (43,560 sq ft), it is easier to say acres. For example, 10,000 square feet is 22.96 decimal, which is 0.2296 acre. And 1 lakh square feet is 229.57 decimal, or 2.2957 acres.
Rounding and paperwork
- Land papers in these states often show area in acre and decimal, sometimes to two or three places. A record of 0.033 acre is 3.3 decimal, or 1,437.48 square feet.
- When you buy a flat or a small plot in square feet, convert to decimal and compare with the record. Small gaps from rounding are normal. A gap of a full decimal (435.6 sq ft) is not.
- Measure all four sides. Plots are rarely perfect rectangles. For uneven plots, use the land area calculator first, then convert.
- For a sale or partition, confirm the area with the circle office or amin and check the khatiyan or record of rights.
More: decimal to square feet, acre to decimal and what is a decimal.
Questions people ask
1,000 square feet in dismil kitna hota hai?
1,000 square feet is 2.3 dismil. Divide 1,000 by 435.6 to get it.
How many square feet in one decimal?
One decimal is 435.6 square feet. This value is the same in every state because a decimal is one hundredth of an acre.
2,000 square feet in dismil?
2,000 square feet is 4.59 dismil.
1,500 and 1,200 square feet in dismil?
1,500 square feet is 3.44 dismil and 1,200 square feet is 2.75 dismil.
720 square feet in decimal?
720 square feet is 1.6529 decimal. That is the size of one katha as commonly used in West Bengal.
Local units can differ inside a state. Before a sale, partition or court filing, confirm the unit with your tehsil, circle or revenue office and check the land record. How we check our numbers.