Chatak to Square Feet Converter (1 Chatak = 45 sq ft)
Chatak (also spelt chotak or chhatak) is the smallest unit in the katha system of Bangladesh and West Bengal. Sixteen chatak make one katha, so a chatak is 45 square feet, about the size of a small room. Enter any number of chatak below; the unit appears as "Chotak" in the list. Swap to go from square feet back to chatak.
1 chatak = 45 square feet 16 chatak = 1 katha = 720 sq ft. 1 chatak = 20 square hat = 5 square gaj = 4.18 sq m.
How to convert chatak to square feet
Multiply the chatak by 45. To go the other way, divide the square feet by 45.
square feet = chatak × 45 chatak = square feet ÷ 45
Example: a plot of 2 katha 8 chatak is (2 × 16 + 8) = 40 chatak = 40 × 45 = 1,800 sq ft. A 600 sq ft room is 600 ÷ 45 = 13.33 chatak.
Chatak to square feet conversion table
| Chotak | Square Feet |
|---|---|
| 1 Chotak | 45 Square Feet |
| 2 Chotak | 90 Square Feet |
| 3 Chotak | 135 Square Feet |
| 4 Chotak | 180 Square Feet |
| 5 Chotak | 225 Square Feet |
| 6 Chotak | 270 Square Feet |
| 7 Chotak | 315 Square Feet |
| 8 Chotak | 360 Square Feet |
| 9 Chotak | 405 Square Feet |
| 10 Chotak | 450 Square Feet |
| 11 Chotak | 495 Square Feet |
| 12 Chotak | 540 Square Feet |
| 13 Chotak | 585 Square Feet |
| 14 Chotak | 630 Square Feet |
| 15 Chotak | 675 Square Feet |
| 16 Chotak | 720 Square Feet |
| 20 Chotak | 900 Square Feet |
| 24 Chotak | 1,080 Square Feet |
| 32 Chotak | 1,440 Square Feet |
| 48 Chotak | 2,160 Square Feet |
| 64 Chotak | 2,880 Square Feet |
| 100 Chotak | 4,500 Square Feet |
Square feet to chatak
| Square Feet | Chotak |
|---|---|
| 45 Square Feet | 1 Chotak |
| 90 Square Feet | 2 Chotak |
| 100 Square Feet | 2.2222 Chotak |
| 200 Square Feet | 4.4444 Chotak |
| 250 Square Feet | 5.5556 Chotak |
| 360 Square Feet | 8 Chotak |
| 500 Square Feet | 11.1111 Chotak |
| 720 Square Feet | 16 Chotak |
| 1,000 Square Feet | 22.2222 Chotak |
| 1,440 Square Feet | 32 Chotak |
| 2,000 Square Feet | 44.4444 Chotak |
| 5,000 Square Feet | 111.1111 Chotak |
1 chatak in other units
| Unit | 1 chatak equals |
|---|---|
| Square feet | 45 sq ft |
| Square metres | 4.181 sq m |
| Square gaj (yards) | 5 sq gaj |
| Square hat | 20 sq hat (1 hat = 18 inches) |
| Katha | 0.0625 katha (16 chatak = 1 katha) |
| Bigha | 0.003125 bigha (320 chatak = 1 bigha) |
| Decimal / satak | 0.1033 decimal (9.68 chatak = 1 decimal) |
| Acre | 0.001033 acre (968 chatak = 1 acre) |
Where chatak is used
Deeds in Dhaka, Chattogram, Kolkata and the rest of Bengal write a plot as bigha, katha and chatak, for example "2 katha 12 chatak". Because a chatak is only 45 sq ft, it fills the gap between whole katha, in the same way inches fill the gap between feet. In the acre system the equivalent small unit is the ojutangsho (4.356 sq ft), and in the kani system it is the kora or kranti. The formula page lists all of them side by side.
The same word is also a weight (a chatak of rice, about 58 grams). This page is only about the area unit.
Frequently asked questions
How many square feet in 1 chatak?
45 square feet, using the standard katha of 720 sq ft.
How many chatak in 1 katha?
16 chatak. Use the katha to square feet converter for the katha side.
How many chatak in 1 bigha?
320 chatak, because a bigha is 20 katha and each katha is 16 chatak.
How many chatak in 1 decimal?
9.68 chatak. One decimal is 435.6 sq ft and 435.6 ÷ 45 = 9.68.
Is chatak the same as chotak and chhatak?
Yes. They are spellings of the same Bengali word. This converter lists it as "Chotak".
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