Unit Converter
Standard area and length conversions on the left of every calculator below, and India's regional land units — guntha, kanal, marla, bigha, ground, and more — on the right. Regional units are not nationally fixed: the same name can mean a different size in a different state, and sometimes in a different district of the same state. We only publish a number where it traces to an official state land-record convention — where it doesn't, we say so instead of guessing.
Standard Units
Fixed international/mathematical conversions — the same everywhere, no state variation.
Area
Length
Quick reference
1 sq ft = 0.0929 sq m · 1 sq m = 10.7639 sq ft · 1 sq yard = 0.8361 sq m
1 acre = 4,046.86 sq m = 0.4047 hectare = 40.47 ares = 43,560 sq ft
1 hectare = 2.4711 acres = 10,000 sq m · 1 are = 100 sq m = 0.01 hectare
1 foot = 0.3048 m · 1 meter = 3.2808 ft
1 cent (Kerala/TN/AP/Karnataka) = 1 decimal (Bihar/WB/Odisha/Assam/Jharkhand) = 1/100 acre = 435.6 sq ft = 40.47 sq m
Regional / Local Land Units
Calculator
Verified, by state
Dual-system states — two named values, not one
Not available — no verifiable statewide figure
Checked and confirmed — not used in these states
Worth stating plainly, since a unit used in a neighbouring or former-sibling state doesn't automatically carry over.
Frequently asked
Is 1 bigha always the same size?
No. Bigha is not a nationally fixed unit — it's set by historical local land-settlement practice and can vary by state and, in several states, by district within the same state. West Bengal and Assam each have one consistent statewide figure (14,400 sq ft), but Uttar Pradesh and Rajasthan use two named systems (Pucca and Kachha Bigha), and Bihar, Madhya Pradesh, Gujarat, Delhi, Jharkhand, and Chhattisgarh have no single verifiable statewide figure at all.
What is a cent in real estate?
A cent is exactly 1/100 of an acre (435.6 sq ft), used mainly in Kerala, Tamil Nadu, Andhra Pradesh, and Karnataka. The same 1/100-acre unit is called a Decimal in Bihar, West Bengal, Odisha, Assam, and Jharkhand. Because it's a fixed mathematical fraction of the acre, it doesn't vary by state or region.
Why doesn't this page show a number for Bihar, Madhya Pradesh, Gujarat, Delhi, Jharkhand, or Chhattisgarh bigha?
Because no single official statewide figure could be verified for those states' bigha — it depends on the historical measuring convention used in that specific district. Publishing one number would misrepresent it as fixed when it isn't. Note this is separate from Gujarat's guntha, which is standardized and shown normally. Check with the local Tehsil/Revenue office or land-records portal for the bigha figure that applies to your specific location.
Is guntha the same in Maharashtra, Karnataka, Telangana, and Gujarat?
Yes. In all four states, 1 guntha equals 1,089 sq ft (1/40 acre), following the same British-era Bombay/Deccan-Survey convention that carried into each state's official land records. Andhra Pradesh and Odisha do not use guntha at all — they record land in Acre and Cent/Decimal instead, despite Andhra Pradesh and Telangana having been one state until 2014.