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square inch
Symbol:  in2, sq. in 
Category:  Area 
SI Equivalent:  6.4516×10-4 m2
Dimension L2 
System:  UK, US, FPS 
Convert     in2, sq. in  
1 in2, sq. in =
  Symbol Unit Name
1.59423×10-7  ac, acre  acre 
6.4516×10-6  a  are 
6.4516×1024  b  barn 
1.64914×10-3  bbl (US, liq.)/ft  barrel (US, liq.) per foot 
1.37429×10-4  bbl (US, liq.)/in  barrel (US, liq.) per inch 
1.23686×10-3  bbl (US, petrol)/ft  barrel (US, petrol) per foot 
1.03072×10-4  bbl (US, petrol)/in  barrel (US, petrol) per inch 
6.4516×10-4    centare 
1.27324  cin  circular inch 
1.27324×106  cmil  circular mil 
6.4516×10-8  ha  hectare 
7.82548×10-8    morgen (Dutch) 
2.54778×10-7    morgen (Prussian) 
7.53225×10-8    morgen (South Africa) 
9.96391×10-10    quarter section 
6.3769×10-7    rood (UK) 
2.49098×10-10  sq.mi, mi2 (stat.)  section (square statute mile) 
6.4516×1048    shed 
6.4516  cm2  square centimeter 
6.94444×10-7  sq. ch. (engineer's)  square chain (engineer's) 
1.59423×10-6  sq. ch. (Gunter's)  square chain (Gunter's) 
6.4516×10-6  dam2  square decameter 
6.4516×10-2  dm2  square decimeter 
6.4516×10-40  Em2  square exameter 
6.4516×1026  fm2  square femtometer 
6.4516×1026  f2  square fermi 
6.94444×10-3  ft2  square foot 
6.4516×10-22  Gm2  square gigameter 
6.4516×10-8  hm2  square hectometer 
6.4516×10-10  km2  square kilometer 
6.4516×10-16  Mm2  square megameter 
6.4516×10-4  m2  square meter 
6.4516×108  ┬Ám2  square micrometer 
10×105  mil2  square mil (thou) 
1.17131×10-11  sq. mi. (geogr.)  square mile (geographical) 
1.88099×10-10  sq. mi. (int. naut.)  square mile (int. naut.) 
2.49097×10-10  sq. mi. (int.)  square mile (int.) 
645.16  mm2  square millimeter 
6.4516×1014  nm2  square nanometer 
2.55075×10-5  rd2  square perch 
6.4516×10-34  Pm2  square petameter 
6.4516×1020  pm2  square picometer 
2.55075×10-5  rd2  square pole 
2.55075×10-5  rd2  square rod 
6.4516×10-28  Tm2  square terameter 
7.71605×10-4  yd2, sq. yd  square yard 
6.4516×1044  ym2  square yoctometer 
1.89595×10-42  Ym2  square yottameter 
6.4482×1038  zm2  square zeptometer 
1.89595×10-42  Zm2  square zettameter 
6.91938×10-12    township (US) 
3.58701×10-7    vergee (Jersey) 
4.18484×10-7    vergees (Guernsey) 
Fuel Consumption
  Symbol Unit Name
274.286  gal/mile  gallon per mile 
6.4516×104  l/100 km  liter per 100 kilometers 
645.16  l/km  liter per kilometer 
Hydrodynamic permeability
  Symbol Unit Name
6.53708×108    darcy