Convert barn to square millimeter
Please provide values below to convert barn [b] to square millimeter [mm^2], or Convert square millimeter to barn.
1 b = 1.0000e-22 mm^2. To convert barn to square millimeter, multiply the value by 1.0000e-22; to go the other way, divide by it (1 mm^2 = 1.0000e+22 b). Both units measure area and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 b = 1.0000e-22 mm^2
- 1 mm^2 = 1.0000e+22 b
- 10 b = 1.0000e-21 mm^2
- 100 b = 1.0000e-20 mm^2
How to Convert Barn to Square Millimeter
1 b = 1e-22 mm^2
Example: convert 15 b to mm^2:
15 b = 15 × 1e-22 mm^2 = 1.5e-21 mm^2
Barn to Square Millimeter Conversion Table
| barn | square millimeter |
|---|---|
| 1 b | 1.0000e-22 mm^2 |
| 2 b | 2.0000e-22 mm^2 |
| 3 b | 3.0000e-22 mm^2 |
| 5 b | 5.0000e-22 mm^2 |
| 10 b | 1.0000e-21 mm^2 |
| 20 b | 2.0000e-21 mm^2 |
| 50 b | 5.0000e-21 mm^2 |
| 100 b | 1.0000e-20 mm^2 |
| 500 b | 5.0000e-20 mm^2 |
| 1000 b | 1.0000e-19 mm^2 |
Barn
A barn is a unit of area used primarily in agriculture to measure land, especially for farming purposes.
History/Origin
The barn originated as a unit of measure in the 19th century, based on the amount of land that could be covered by a barn, roughly equivalent to 40 square rods or about 40 acres, and was used in land surveying and farming contexts.
Current Use
Today, the barn is largely obsolete as a formal measurement unit but is still used colloquially in agriculture to refer to land area, especially in the United States, often informally approximating 40 acres.
Square Millimeter
A square millimeter (mm²) is a unit of area equal to the area of a square with sides measuring one millimeter.
History/Origin
The square millimeter has been used in scientific and engineering contexts for precise measurement of small areas, especially in fields like electronics and material science, as a subdivision of the metric system established in the 19th century.
Current Use
It is commonly used today in fields such as electronics, manufacturing, and scientific research to measure small surface areas, including the cross-sectional areas of wires and components.
Frequently Asked Questions
What is 1 barn in square millimeter?
1 barn (b) = 1.0000e-22 square millimeter (mm^2).
How do you convert barn to square millimeter?
Multiply the barn value by 1.0000e-22. For example, 25 b × 1.0000e-22 = 2.5000e-21 mm^2.
What is 10 barn in square millimeter?
10 b = 1.0000e-21 mm^2.
Which unit is larger, the barn or the square millimeter?
The square millimeter is the larger unit: 1 b equals only 1.0000e-22 mm^2.