Barn
Enter a value and select units to convert.
Switch cawnie to b
Barn Unit Table
A list of units symbol and data.
From bTo cawnieAll conversion
1 b2.471053814671653e-32 cawnie
2 b4.942107629343306e-32 cawnie
3 b7.41316144401496e-32 cawnie
4 b9.884215258686612e-32 cawnie
5 b1.2355269073358268e-31 cawnie
6 b1.482632288802992e-31 cawnie
7 b1.7297376702701573e-31 cawnie
8 b1.9768430517373224e-31 cawnie
9 b2.223948433204488e-31 cawnie
10 b2.4710538146716536e-31 cawnie
Description

Understanding the Barn (b)

A barn (b) is a unit of area used in nuclear physics to quantify cross-sectional areas of atomic nuclei, equal to 1e-28 square meters. It's not used in everyday measurements but is crucial in particle physics research.

For example, the probability of a neutron interacting with a uranium nucleus might be expressed in barns. This unit aids in understanding nuclear reactions and particle interactions.

Cawnie

The cawnie is a historical unit of land area measurement formerly used in parts of India, particularly in the southern regions like Tamil Nadu. One cawnie is approximately equal to 1.3225 acres or about 5,400 square meters.

Although the cawnie is largely obsolete today, replaced by standard metric units, it may still be encountered in historical land records and older property documents. Professionals dealing with land assessment, restoration, or historical research in these regions should be familiar with this unit for accurate interpretation of such records.

Recognizing the cawnie aids in preserving the historical context of land measurements and ensures precise conversions in contemporary applications.

Complete list of conversion for Barn
Barn (b)

1 Barn = 1e-28 Square Meter

Convert 2 b → m²

1 Barn = 1e-34 Square Kilometer

Convert 2 b → km²

1 Barn = 9.999999999999999e-33 Square Hectometer

Convert 2 b → hm²

1 Barn = 9.999999999999999e-31 Square Dekameter

Convert 2 b → dam²

1 Barn = 9.999999999999999e-27 Square Decimeter

Convert 2 b → dm²

1 Barn = 1e-24 Square Centimeter

Convert 2 b → cm²

1 Barn = 1e-22 Square Millimeter

Convert 2 b → mm²

1 Barn = 1e-16 Square Micrometer

Convert 2 b → µm²

1 Barn = 9.999999999999999e-11 Square Nanometer

Convert 2 b → nm²

1 Barn = 9.999999999999999e-33 Hectare

Convert 2 b → ha

1 Barn = 9.999999999999999e-31 Are

Convert 2 b → a

1 Barn = 9.999999999999999e-32 Decare

Convert 2 b → daa

1 Barn = 2.471053814671653e-32 Acre

Convert 2 b → ac

1 Barn = 3.8610215854244585e-35 Square Mile

Convert 2 b → mi²

1 Barn = 1.1959900463010803e-28 Square Yard

Convert 2 b → yd²

1 Barn = 1.0763910416709721e-27 Square Foot

Convert 2 b → ft²

1 Barn = 1.5500031000062e-25 Square Inch

Convert 2 b → in²

1 Barn = 1.9735251599788835e-25 Circular Inch

Convert 2 b → circ in

1 Barn = 2.4710538146716536e-31 Square Chain

Convert 2 b → ch²

1 Barn = 3.953686103474646e-30 Square Rod

Convert 2 b → rd²

1 Barn = 3.953686103474646e-30 Square Perch

Convert 2 b → perch²

1 Barn = 3.953686103474646e-30 Square Pole

Convert 2 b → pole²

1 Barn = 7.474937789381752e-32 Bigha

Convert 2 b → bigha

1 Barn = 2.5442731353538997e-32 Cuerda

Convert 2 b → cda

1 Barn = 2.471053814671653e-32 Cawnie

Convert 2 b → cawnie

1 Barn = 9.884215313397333e-31 Guntha

Convert 2 b → guntha

1 Barn = 2.4710538146716535e-30 Cent

Convert 2 b → cent