Convert area between Indian units (bigha, biswa, katha, gaj, guntha, ground, cent, chatak) and standard units (sqft, sqm, sqyd, hectare, acre). Bigha sizes vary by state — supports UP, Bihar, MP, HP, Rajasthan, Punjab variants.
Reviewed by the CalculatorKosh Editorial TeamUpdated June 2026Free · No sign-up
Area Converter (Indian Units)
Convert area between Indian units (bigha, biswa, katha, gaj, guntha, ground, cent, chatak) and standard units (sqft, sqm, sqyd, hectare, acre). Bigha sizes vary by state — supports UP, Bihar, MP, HP, Rajasthan, Punjab variants.
Convert area
1.0000 Bigha — UP big / Rajasthan / MP
1.0000 Bigha — UP big / Rajasthan / MP = 27,225.0 Square Feet (sqft)≈ 27,225.0 sqft
Bigha varies by state
Bigha is not a standardized unit — its size differs across states. Be sure you've selected the correct state-specific variant when converting property records. The UP "big" bigha (~27,225 sqft) is roughly 3× the Punjab / Haryana bigha (~9,070 sqft).
Full conversion table
1.0000 Bigha — UP big / Rajasthan / MP in every supported unit
| Square Feet (sqft)(result) | 27,225.0 |
| Square Meters (sqm) | 2,529.29 |
| Square Yards (gaj / sqyd) | 3,025.00 |
| Hectare (ha) | 0.25293 |
| Acre | 0.62500 |
| Cent | 62.500 |
| Ground (Tamil Nadu / Karnataka) | 11.344 |
| Ankanam (Andhra / Karnataka) | 378.13 |
| Chatak (West Bengal) | 605.00 |
| Katha — West Bengal | 37.813 |
| Katha — Bihar | 20.000 |
| Katha — Assam | 9.4531 |
| Biswa — UP small (Pucca) | 20.167 |
| Biswa — UP big (Kachcha) | 18.075 |
| Bigha — UP small (Pucca) | 1.0083 |
| Bigha — UP big / Rajasthan / MP(input) | 1.0000 |
| Bigha — Bihar | 1.0002 |
| Bigha — Punjab / Haryana | 3.0017 |
| Bigha — Himachal Pradesh | 3.1250 |
| Bigha — West Bengal / Assam | 1.8906 |
| Bigha — Gujarat | 1.5622 |
| Guntha (Maharashtra / Karnataka) | 25.000 |
| Kanal (Punjab / Haryana / HP / J&K) | 5.0000 |
| Marla (Punjab / Haryana) | 100.00 |
Common conversion shortcuts
- 1 sqyd (gaj) = 9 sqft
- 1 sqm = 10.76 sqft = 1.196 sqyd
- 1 acre = 43,560 sqft = 4,047 sqm
- 1 hectare = 2.47 acres = 10,000 sqm
- 1 bigha (most states) ≈ 27,000 sqft (varies — see table)
- 1 guntha = 1,089 sqft (1/40 acre)
- 1 kanal = 5,445 sqft = 20 marlas
- 1 cent = 435.6 sqft (1/100 acre)
How It Works
Property listings in India routinely mix traditional units (bigha, gaj, guntha, katha, kanal, marla) with standard units (sqft, sqm, sqyd). The mix changes by region — a Punjab listing speaks in kanal and marla, a Maharashtra listing in guntha, a Bengal listing in katha. This calculator converts cleanly between all of them.
How the conversion works
Every supported unit has a fixed factor to square feet (sqft) — the canonical base. The conversion is then two simple steps: input value × from-factor = sqft, and sqft ÷ to-factor = output value. For example: 1 bigha (UP big) × 27,225 = 27,225 sqft; 27,225 ÷ 9 = 3,025 sqyd (gaj).
The bigha problem
Bigha is the trickiest unit because it has no nationally-uniform size. UP alone has two variants — Pucca (27,000 sqft) and Kachcha (27,225 sqft). Bihar is 27,220 sqft, Gujarat is 17,427 sqft, Punjab / Haryana is 9,070 sqft, Himachal Pradesh is 8,712 sqft, and West Bengal / Assam is 14,400 sqft. The difference between the Punjab bigha and the UP bigha is almost 3x — so picking the wrong variant can be a serious mistake when reading property records.
Other regional units
Guntha (1,089 sqft) is Maharashtra and Karnataka — exactly 1/40 of an acre. Cent (435.6 sqft) is Tamil Nadu, Kerala, and Karnataka — exactly 1/100 of an acre. Ground (2,400 sqft) is Tamil Nadu and Karnataka. Kanal (5,445 sqft) and marla (272.25 sqft) are Punjab, Haryana, Himachal, and J&K — 1 kanal = 20 marlas. Katha varies by state too: 720 sqft in West Bengal, 1,361.25 sqft in Bihar, 2,880 sqft in Assam.
Carpet vs built-up vs super-built-up
Property brochures often quote a sqft number — but which sqft? Carpet area is the net usable area inside your walls. Built-up area adds wall thickness (≈ carpet × 1.10-1.15). Super built-up adds your share of common areas like the lobby and staircase (≈ carpet × 1.25-1.35). Under RERA, every regulated project must declare carpet area, not super built-up.
Frequently Asked Questions
There is no single answer — bigha sizes vary by state. The most common values are:
- UP small (Pucca) bigha = 27,000 sqft
- UP big (Kachcha) / Rajasthan / MP bigha = 27,225 sqft
- Bihar bigha = 27,220 sqft
- West Bengal / Assam bigha = 14,400 sqft
- Gujarat bigha = 17,427 sqft
- Punjab / Haryana bigha = 9,070 sqft
- Himachal Pradesh bigha = 8,712 sqft
Always confirm the variant against the property record before converting — the Punjab and UP bighas differ by almost 3x.
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