Area units calculator & converter tool
Pouce2 Conversions Table
Equivalent of 9 Square inch: |
0.0058064342775268 m2 (Square meter) |
58.064342775268 cm2 (Square centimeter) |
0.58064342775268 dm2 (Square decimeter) |
5806.4342775268 mm2 (Square milimeter) |
5.8064342775268E-9 km2 (Square Kilometer) |
5.8064342775268E-7 Hectare |
5.8064342775268E-5 Are |
5.8064342775268E-6 Decare |
0.0058064342775268 Centiare |
1.698411058348E-6 Arpent |
5.8064342775268 Barn |
0.06249987791987 Square feet |
1.4347989421483E-6 Acre |
0.00022956841138715 Square perche |
2.2418642745531E-9 Square mil |
0.0069444373315792 Square yard |
6.2303039797862E-11 Canton |
8.9651345245013E-9 Homestead |
5.7390796399075E-6 Rood |
Pouce2 / Barn Units Definition
Square inch
A square inch (plural: square inches) is a unit of area, equal to the area of a square with sides of one inch.historic engineering drawings (number with a square & a double apostrophe, both as an exponent).The square inch is a common unit of measurement in the United States and the United Kingdom. A common unit of pressure, pound per square inch (psi) is derived from this unit of area.
Barn
A barn (symbol: b) is a metric unit of area equal to 10-28 m2 (100 fm2). Originally used in nuclear physics to express the cross section of nuclei and nuclear reactions, it is also used today in all areas of high energy physics to express the cross sections of any diffusion process, and is best understood as a measure of the probability of interaction between small particles. A barn corresponds approximately to the cross section of a uranium nucleus. The barn is also the unit of area used in nuclear quadrupole resonance and nuclear magnetic resonance to quantify the interaction of a nucleus with an electric field gradient. Although the barn was never an SI unit, the SI standards body recognized it in the 8th SI brochure (replaced 2019) due to its use in particle physics.