How many biswa are in 1 square millimetre?

It depends on the state, because the biswa is not a fixed size. In Uttar Pradesh & Rajasthan (pucca), 1 square millimetre = 7.9074e-9 biswa. Across the states listed, the answer ranges from 7.9074e-9 to 2.4711e-8 biswa — choose your state in the converter above for an accurate result.

Why does the biswa vary by state?

The biswa 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 millimetre to biswa?

Pick your state above so the tool uses that state's biswa value, then type the amount. For example, in Uttar Pradesh & Rajasthan (pucca), multiply square millimetre by 7.9074e-9 to get biswa.

Which states is the biswa used in?

This converter covers: Uttar Pradesh & Rajasthan (pucca); Rajasthan (kachha); Himachal Pradesh; Haryana & Punjab (kachha basis). For legal or property transactions, always confirm the local value against your revenue records (patwari / tehsil).

Convert Square Millimetre to Biswa

The biswa is not a fixed size — it varies by state. Across the states below, 1 square millimetre = 7.9074e-9–2.4711e-8 biswa. Pick your state for an accurate result; it runs entirely in your browser.

1 Square Millimetre = 7.9074e-9 Biswa (Uttar Pradesh & Rajasthan (pucca))

Biswa value — choose your state / region

Square Millimetre (mm²)

Biswa (biswa)

⇅ Reverse (Biswa → Square Millimetre)

Square Millimetre to Biswa by state

Because the biswa 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 Biswa (sq ft)	1 Biswa (m²)	1 Square Millimetre → Biswa	1 Biswa → Square Millimetre
Uttar Pradesh & Rajasthan (pucca)	1,361.25	126.4643	7.9074e-9 biswa	126,464,300 mm²
Rajasthan (kachha)	871.2	80.93713	1.2355e-8 biswa	80,937,130 mm²
Himachal Pradesh	435.6	40.46856	2.4711e-8 biswa	40,468,560 mm²
Haryana & Punjab (kachha basis) *	453.75	42.15475	2.3722e-8 biswa	42,154,750 mm²

* Haryana & Punjab (kachha basis): Tracks the local bigha basis, which is not standardised in Haryana/Punjab. Confirm against local records.

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 millimetre and biswa

Square Millimetre: A square millimetre is a 1 mm × 1 mm square — the smallest common metric area unit.

Biswa: A biswa is 1/20 of a bigha, so like the bigha its real size depends on the state. 1 biswa = 20 biswansi.

Frequently asked questions

How many biswa are in 1 square millimetre?: It depends on the state, because the biswa is not a fixed size. In Uttar Pradesh & Rajasthan (pucca), 1 square millimetre = 7.9074e-9 biswa. Across the states listed, the answer ranges from 7.9074e-9 to 2.4711e-8 biswa — choose your state in the converter above for an accurate result.
Why does the biswa vary by state?: The biswa 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 millimetre to biswa?: Pick your state above so the tool uses that state's biswa value, then type the amount. For example, in Uttar Pradesh & Rajasthan (pucca), multiply square millimetre by 7.9074e-9 to get biswa.
Which states is the biswa used in?: This converter covers: Uttar Pradesh & Rajasthan (pucca); Rajasthan (kachha); Himachal Pradesh; Haryana & Punjab (kachha basis). 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.