ounce/second [oz/s] Unit Converter

Definition of ounce/second [oz/s] unit

An ounce per second (oz/s) is a unit of mass flow rate equal to one ounce of material passing a specified point every second. In common engineering usage, “ounce” means the avoirdupois ounce, equal to approximately 28.35 grams.

History of ounce/second [oz/s] unit

The ounce has ancient roots in Roman measurement, descending from the uncia, or twelfth part of a Roman pound. English weighing systems later adopted several ounces, creating distinctions between avoirdupois, troy, and apothecaries’ versions. The modern avoirdupois ounce was standardized as 1/16 of an avoirdupois pound, while the international pound was fixed at exactly 0.45359237 kilograms in 1959, making an ounce exactly 28.349523125 grams. Expressing ounces per second arose as engineers applied this traditional mass unit to continuous transport, feeding, and discharge rates in industrial equipment.

Applications of ounce/second [oz/s] unit

Ounce per second is used to describe mass delivery in small-scale pumping, dispensing, and material-handling systems. Examples include fuel or lubricant injection, chemical dosing, powder feeders, and laboratory flow experiments. Because most scientific work uses SI units, values are often converted to kilograms per second: 1 oz/s equals approximately 0.02835 kg/s.

Complete list of ounce/second [oz/s] unit conversion