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barn
Symbol:  b 
Category:  Area 
SI Equivalent:  1×10-28 m2
Dimension L2 
 
Notes
In 1942, H. G. Holloway and C. P. Baker introduced this unit to describe certain phenomena in nuclear physics such as fission, capture, diffusion, and absorption of nuclides.
Convert     b  
57 conversions, showing those commonly used | Show all
1 b =
Area
  Symbol Unit Name
2.47105×10-32  ac, acre  acre 
1×10-32  ha  hectare 
1×10-24  cm2  square centimeter 
1.07639×10-27  ft2  square foot 
1×10-32  hm2  square hectometer 
1.55×10-25  in2, sq. in  square inch 
1×10-34  km2  square kilometer 
1×10-28  m2  square meter 
1×10-16  ┬Ám2  square micrometer 
1.55×10-19  mil2  square mil (thou) 
3.86101×10-35  sq. mi. (int.)  square mile (int.) 
1×10-22  mm2  square millimeter 
1.19599×10-28  yd2, sq. yd  square yard 
more...
Glossary