Square metric area unit.
Square Centimeters to Barns Converter — cm2 to b
Convert Square Centimeter (cm2) to Barn (b) using the exact conversion factor (1 square centimeter = 1e+24 barn). See the formula, worked examples, and conversion table.
Square Centimeters to Barns converter
Converter
Area Converter
Convert land, construction, mapping, survey, and scientific area units.
Context values
Some unit families need one extra value for a physically accurate result.
A barn is a nuclear cross-section unit equal to 1e-28 square meters.
Result = input x 0.0001 / 1e-28.
Area uses the square meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Square Centimeters to Barns
Comparing Square Centimeter and Barn is common in agriculture and real estate, where US land is typically measured in acres and most of the rest of the world uses hectares. Specifically: Square metric area unit, and a barn is a nuclear cross-section unit equal to 1e-28 square meters.
Formula
barns = square centimeters × 1e+24
This factor comes from each unit's defined relationship to the category's base unit: 1 square centimeter equals 0.0001 base units, and 1 barn equals 1e-28 base units, so dividing one by the other gives the direct square centimeter-to-barn factor of 1e+24.
Simple example
1 cm2 × 1e+24 = 1e+24 b
1 square centimeter = 1e+24 barns.
Real-world example
10 cm2 × 1e+24 = 1e+25 b
10 square centimeters = 1e+25 barns.
Conversion table
| Square Centimeter (cm2) | Barn (b) |
|---|---|
| 1 cm2 | 1e+24 b |
| 5 cm2 | 5e+24 b |
| 10 cm2 | 1e+25 b |
| 25 cm2 | 2.5e+25 b |
| 50 cm2 | 5e+25 b |
| 100 cm2 | 1e+26 b |
Reverse conversion: Barn to Square Centimeter
1e+24 b × 1e-24 = 1 cm2
1e+24 barns = 1 square centimeters.
square centimeters = barns × 1e-24
For a page dedicated to this direction, see Barn to Square Centimeter.
Understanding the Square Centimeter (cm2)
Square metric area unit.
Understanding the Barn (b)
A barn is a nuclear cross-section unit equal to 1e-28 square meters.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many barns are in 1 square centimeter?
1 square centimeter equals 1e+24 barns, using the exact defined conversion factor rather than an estimate.
How do I convert square centimeter to barn?
Multiply the square centimeter value by 1e+24. The converter above does this instantly to whatever precision you set.
How do I convert barn back to square centimeter?
Use the reverse factor: 1 barn equals 1e-24 square centimeters. You can also use the swap control in the converter above to flip the direction instantly.
What is a square centimeter?
Square Centimeter (cm2) is a unit of area.
What is a barn?
Barn (b) is a unit of area.
Is the square centimeter to barn conversion exact?
Yes. Both square centimeter and barn are defined by fixed standards rather than physical artifacts, so the factor of 1e+24 used above is exact to as many digits as you choose to display.