A weights and measures table, also called a conversion chart, compares different types of measurements, such as distance, weight and volume. The chart displays a list of measurements and their equivalents when converted to other units.
Conversion charts are used in a variety of fields that require conversion calculations, such as cooking, engineering and architecture. Several measurement systems are commonly found in conversion charts, including the metric system, imperial system and the avoirdupois system. The avoirdupois system, based on pounds that equal 16 ounces, is the standard weight-measurement system used in the United States. The imperial system consists of measuring units that were defined in the British Weights and Measures Act of 1824.