Area units calculator & converter tool
Mille2 Conversions Table
Equivalent of 20 Square mil: |
51800051.800052 m2 (Square meter) |
518000518000.52 cm2 (Square centimeter) |
5180005180.0052 dm2 (Square decimeter) |
51800051800052 mm2 (Square milimeter) |
51.800051800052 km2 (Square Kilometer) |
5180.0051800052 Hectare |
518000.51800052 Are |
51800.051800052 Decare |
51800051.800052 Centiare |
15151.774151774 Arpent |
51800051800.052 Barn |
557570577.57058 Square feet |
12800.051800052 Acre |
2048013.4680135 Square perche |
61952343.952344 Square yard |
80290319999.806 Square inch |
0.55581455581456 Canton |
79.97927997928 Homestead |
51199.171199171 Rood |
Mille2 / Barn Units Definition
Square mil
A square mil is a unit of area, equal to the area of a square with sides of length one mil. A mil is one thousandth of an international inch. This unit of area is usually used in specifying the area of the cross section of a wire or cable.
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.