How many katha are in 1 square metre?

It depends on the state, because the katha is not a fixed size. In Bihar, 1 square metre = 0.007907372 katha. Across the states listed, the answer ranges from 0.003737469 to 0.02989975 katha — choose your state in the converter above for an accurate result.

Why does the katha vary by state?

The katha is a traditional unit recorded differently in each state's revenue system, and many states use a larger "pucca" and a smaller "kachha" version. There is no single national value, so the only correct conversion is the one for your specific state or district.

How do I convert square metre to katha?

Pick your state above so the tool uses that state's katha value, then type the amount. For example, in Bihar, multiply square metre by 0.007907372 to get katha.

Which states is the katha used in?

This converter covers: Bihar; West Bengal (rural); West Bengal (Kolkata); Assam (1 bigha = 5 katha); Jharkhand (Ranchi); Madhya Pradesh. For legal or property transactions, always confirm the local value against your revenue records (patwari / tehsil).

Convert Square Metre to Katha

The katha is not a fixed size — it varies by state. Across the states below, 1 square metre = 0.003737469–0.02989975 katha. Pick your state for an accurate result; it runs entirely in your browser.

1 Square Metre = 0.007907372 Katha (Bihar)

Katha value — choose your state / region

Square Metre (m²)

Katha (katha)

⇅ Reverse (Katha → Square Metre)

Square Metre to Katha by state

Because the katha differs from state to state, the table below gives the value in each state we cover. The square-foot column is the standard defining value; the metre and conversion columns are computed from it.

State / region	1 Katha (sq ft)	1 Katha (m²)	1 Square Metre → Katha	1 Katha → Square Metre
Bihar	1,361.25	126.4643	0.007907372 katha	126.4643 m²
West Bengal (rural)	720	66.89019	0.01494988 katha	66.89019 m²
West Bengal (Kolkata)	360	33.44509	0.02989975 katha	33.44509 m²
Assam (1 bigha = 5 katha)	2,880	267.5608	0.003737469 katha	267.5608 m²
Jharkhand (Ranchi)	720	66.89019	0.01494988 katha	66.89019 m²
Madhya Pradesh	600	55.74182	0.01793985 katha	55.74182 m²

Indian land units vary by state and even by district, and local custom can differ from the standard value. For any legal, property or financial purpose, confirm the value against your local revenue records (patwari / tehsil) before relying on it.

About square metre and katha

Square Metre: The square metre is the SI unit of area — a 1 m × 1 m square.

Katha: A katha (also spelt kattha) is the common land unit across eastern India. In most states 1 bigha = 20 katha, but in Assam 1 bigha = 5 katha, so the katha’s size varies widely by state.

Frequently asked questions

How many katha are in 1 square metre?: It depends on the state, because the katha is not a fixed size. In Bihar, 1 square metre = 0.007907372 katha. Across the states listed, the answer ranges from 0.003737469 to 0.02989975 katha — choose your state in the converter above for an accurate result.
Why does the katha vary by state?: The katha is a traditional unit recorded differently in each state's revenue system, and many states use a larger "pucca" and a smaller "kachha" version. There is no single national value, so the only correct conversion is the one for your specific state or district.
How do I convert square metre to katha?: Pick your state above so the tool uses that state's katha value, then type the amount. For example, in Bihar, multiply square metre by 0.007907372 to get katha.
Which states is the katha used in?: This converter covers: Bihar; West Bengal (rural); West Bengal (Kolkata); Assam (1 bigha = 5 katha); Jharkhand (Ranchi); Madhya Pradesh. For legal or property transactions, always confirm the local value against your revenue records (patwari / tehsil).

Related area conversions

See all area unit conversions →

Full state-by-state size reference (bigha, biswa, katha, dhur) →

Sources

Per-state values are cross-checked against multiple references, including Wikipedia: Bigha, Wikipedia: Katha, Wikipedia: Measurement of land in Punjab and state land-record references. Where sources genuinely disagree we show the documented variants rather than a single figure.