Convert weight mass units online. Use the calculator for making conversions from one weight unit measure into another scale between; carat Metric, centigram, cg cgm, dekagram deka dkg, dram dr, grain gr, gram gramme g, hundredweight short US, hundredweight UK, kilogram kilo kg, microgram µg, milligram mg, newton Earth, ounce oz, pennyweight dwt, pound lb, quarter, stone, ton UK long, ton US short, ton Metric t, troy ounce, USA – Imperial UK and Metric system units of mass and weight. Buy the JavaScript JS and HTML code for this web weight converter application tool for your website.