var unitID = "energy";
var defaultUnitIndex = 16;

var units = [
  ["Btu (th)",                  1054.350],
  ["Btu (mean)",                1055.87],
  ["calories (IT)",             4.1868],
  ["calories (th)",             4.184],
  ["calories (mean)",           4.19002],
  ["calories (15C)",            4.18580],
  ["calories (20C)",            4.18190],
  ["calories (food)",           4186],
  ["centigrade heat units",     1900.4],
  ["electron volts [eV]",       1.60219e-19],
  ["ergs",                      1e-7],
  ["foot-pound force [ft lbf]", 1.3558179483314004],
  ["foot poundals",             0.042140],
  ["gigajoules [GJ]",           1e9],
  ["horsepower hours",          2684520],
  ["inch-pound force [in lbf]", 0.11298482902761668],
  ["joules [J]",                1],
  ["kilocalories (IT)",         4186.8],
  ["kilocalories (th)",         4184],
  ["kilogram-force meters",     9.80665],
  ["kilojoules [kJ]",           1e3],
  ["kilowatt hours [kWh]",      3600000],
  ["megajoules [MJ]",           1e6],
  ["newton meters [Nm]",        1],
  ["therms",                    105505585.257348],
  ["watt seconds [Ws]",         1],
  ["watt hours [Wh]",           3600]
];