var unitID = "density";
var defaultUnitIndex = 6;

var units = [
  ["grains/gallon (UK)",       0.000014253948343691203],
  ["grains/gallon (US)",       0.000017118011571775823],
  ["grams/cubic centimeters",  1],
  ["grams/liter",              1e-3],
  ["grams/milliliters",        1],
  ["kilograms/cubic meters",   1e-3],
  ["kilograms/liter",          1],
  ["megagrams/cubic meter",    1],
  ["milligrams/milliliter",    1e-3],
  ["milligrams/liter",         1e-6],
  ["ounces/cubic inch",        1.729994044],
  ["ounces/gallon (UK)",       0.006236023],
  ["ounces/gallon (US)",       0.007489152],
  ["pounds/cubic inch",        27.679904],
  ["pounds/cubic foot",        0.016018463],
  ["pounds/gallon (UK)",       0.099776373],
  ["pounds/gallon (US)",       0.119826427],
  ["slugs/cubic foot",         0.51531788206],
  ["tonnes/cubic meter",       1],
  ["tons (UK)/cubic yard",     1.328939184],
  ["tons (US)/cubic yard",     1.186552843]
];