product.uom tree uom_tree product.uom form uom_form Units of Measure product.uom product.uom.category tree uom_category_tree product.uom.category form uom_category_form Categories product.uom.category Units Unit u Weight Kilogram kg Gram g Carat c Pound lb Ounce oz Time Second s Minute min Hour h Work Day wd Day d Length Meter m Kilometer km centimeter cm Millimeter mm Foot ft Yard yd Inch in Mile mi Volume Cubic meter m³ Liter l Cubic centimeter cm³ Cubic inch in³ Cubic foot ft³ Gallon gal Surface Square meter m² Square centimeter cm² Are a Hectare ha Square inch in² Square foot ft² Square yard yd²