Breadcrumb Home Conversion Calculator WEIGHT/MASS ? COMMON UNITS Enter quantity: Convert from: ounce (avdp.)pound (avdp.)ton (short)gramkilogramstone Convert to: ounce (avdp.)pound (avdp.)ton (short)gramkilogramstone Check here to display additional information concerning rounding and significant digits. More weight/mass ? conversions: common units| metric units | all units | CONVERT OTHER UNITS • Length/Distance • Area • Volume • Weight/Mass • Temperature • Cooking • Time • All Unit Options Conversion engine, copyright 1996, 1997, 1998 Free Software Foundation, Inc avdp. = avoirdupois weight, the system of weights in British and U.S. used for goods other than gems, precious metals, and drugs Related LinksCommon Weights and MeasuresConversions and EquivalentsCommon FormulasWeightAtomic WeightVolumeMass ?