How many katha are in 1 decare?

It depends on the state, because the katha is not a fixed size. In Bihar, 1 decare = 7.907372 katha. Across the states listed, the answer ranges from 3.737469 to 29.89975 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 decare to katha?

Pick your state above so the tool uses that state's katha value, then type the amount. For example, in Bihar, multiply decare by 7.907372 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 Decare to Katha

The katha is not a fixed size — it varies by state. Across the states below, 1 decare = 3.737469–29.89975 katha. Pick your state for an accurate result; it runs entirely in your browser.

1 Decare = 7.907372 Katha (Bihar)

Katha value — choose your state / region

Decare (daa)

Katha (katha)

⇅ Reverse (Katha → Decare)

Decare 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 Decare → Katha	1 Katha → Decare
Bihar	1,361.25	126.4643	7.907372 katha	0.1264643 daa
West Bengal (rural)	720	66.89019	14.94988 katha	0.06689019 daa
West Bengal (Kolkata)	360	33.44509	29.89975 katha	0.03344509 daa
Assam (1 bigha = 5 katha)	2,880	267.5608	3.737469 katha	0.2675608 daa
Jharkhand (Ranchi)	720	66.89019	14.94988 katha	0.06689019 daa
Madhya Pradesh	600	55.74182	17.93985 katha	0.05574182 daa

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 decare and katha

Decare: A decare is 1,000 square metres (10 ares, one-tenth of a hectare) — a metric land unit used in Norway, Turkey and the Balkans, and close to the Middle-Eastern dunam.

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 decare?: It depends on the state, because the katha is not a fixed size. In Bihar, 1 decare = 7.907372 katha. Across the states listed, the answer ranges from 3.737469 to 29.89975 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 decare to katha?: Pick your state above so the tool uses that state's katha value, then type the amount. For example, in Bihar, multiply decare by 7.907372 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.