For example, 1 pound can be written as 1 lb, 1 lb m, or 1 #, and 2 pounds can be written as 2 lbs.Ī pound is also frequently referred to as a unit of weight. Pounds can be abbreviated as lb (plural lbs), and are also sometimes abbreviated as lb m or #. A pound is sometimes also referred to as a common ounce. The pound is a US customary and imperial unit of mass. In the avoirdupois or apothecaries' systems, one pound is equal to 7,000 grains. One pound is equal to 16 ounces, or 0.45359237 kilograms.

The National Bureau of Standards approved the international definition of the pound for use in the United States in 1959 after an agreement between six nations referred to as the International Yard and Pound Agreement. Pounds are a widely used unit of weight in the United States. For example, 1 fluid ounce can be written as 1 fl oz or 1 oz fl. Fluid ounces can be abbreviated as fl oz, and are also sometimes abbreviated as oz fl. The fluid ounce is a US customary unit of volume. One fluid ounce is equal to approximately 29.5735 milliliters, but in nutrition labeling, one fluid ounce is rounded to exactly 30 milliliters. The fluid ounce is sometimes referred to as just an 'ounce' but should not be confused with the unit of weight. The US fluid ounce is a unit of volume equal to 1/16 of a pint or 1/8 of a cup. Keep reading to learn more about each unit of measure. Trucks, ships, and airplanes are limited in the amount of weight or volume they can transport, so if one of those quantities is known, but the limitation is on the other, then it becomes necessary to convert between the two so as not to overload the shipping vehicle. Ī third application of weight and volume conversions is when shipping freight when calculating the volumetric weight for cargo and packages. It is common to mix powdered chemicals with liquid, or aqueous, chemicals, and this is where it becomes very useful to convert between weights and volumes. When performing chemical reactions by combining separate chemicals to produce a new chemical, one must know the exact amount of each chemical to add in order to maximize the yield of the reaction. When a scale is not available, a calculator like the one above is a good way to estimate the volume to weight conversion.Īnother useful application of weight and volume conversions is chemistry. The best way to ensure an accurate conversion is to use a scale.

The density of dry ingredients can vary for a variety of reasons, such as compaction and clumping. Pounds = 5 fl oz × 0.7 g/mL / 15.3378 = 0.2282 lb When to Convert Fluid Ounces to Poundsįluid ounces and pounds are both commonly used to measure cooking ingredients.įor cooking applications, most chefs suggest measuring dry ingredients by weight rather than volume to improve accuracy in the measurements. If the density is given in grams per milliliter (g/mL), then first divide the density by 15.3378 to convert to lb/fl oz.įor a density given in g/mL, you can use this simple formula to convert: Note that in order for this to work, the density must be in pounds per fluid ounce (lb/fl oz). To convert a measurement in fluid ounces to pounds, multiply the volume by the density of the ingredient, substance, or material. Therefore, to convert between fluid ounces and pounds of an ingredient or substance, we must either multiply or divide by its density, depending on which direction we are performing the conversion. In this case, we need to account for the density of the substance whenever we do a conversion. Since fluid ounces are a unit of volume and pounds are a unit of mass, which are different physical quantities, we need to know one more physical quantity of the ingredient or substance to convert between them. He holds several degrees and certifications. Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction.

Convert 14.5 fluid ounces to cups