Area units calculator & converter tool
Barn Conversions Table
Equivalent of 8 Barn: |
0.008 m2 (Square meter) |
80 cm2 (Square centimeter) |
0.8 dm2 (Square decimeter) |
8000 mm2 (Square milimeter) |
8.0E-9 km2 (Square Kilometer) |
8.0E-7 Hectare |
8.0E-5 Are |
8.0E-6 Decare |
0.008 Centiare |
2.34004E-6 Arpent |
0.0861112 Square feet |
1.97684E-6 Acre |
0.0003162952 Square perche |
3.0888E-9 Square mil |
0.00956792 Square yard |
12.40003702077 Square inch |
8.584E-11 Canton |
1.2352E-8 Homestead |
7.9072E-6 Rood |
Barn / Km2 Units Definition
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.
km2 (Square Kilometer)
The square kilometer (km2) is a unit of measurement of area. One square kilometer is equal to the area of a square whose sides measure one kilometer.