kip-force [kipf] Unit Converter

Definition of kip-force [kipf] unit

A kip-force (kip or kipf) is a unit of force equal to 1,000 pound-force (lbf), or approximately 4,448.22 newtons. It is commonly used in North American engineering and construction practice.

History of kip-force [kipf] unit

The kip emerged in the United States as engineers and builders needed a convenient large-force unit for structural calculations. Its name combines “kilo-,” suggesting one thousand, with “pound,” referring to pound-force, although it is not an SI unit. During the twentieth century, American structural-engineering practice adopted kips and kips per square inch (ksi) for loads and stresses in buildings, bridges, and foundations. The unit remains especially common in U.S. engineering documents, while most international standards express equivalent quantities in kilonewtons, megapascals, or other SI units today.

Applications of kip-force [kipf] unit

Today, kip-force is used chiefly in U.S. structural and civil engineering to state concentrated loads, reactions, and member capacities. Engineers may specify a beam reaction as 12 kips, a column load as eighty kips, or a connection resistance in kips. It also appears in geotechnical reports, crane ratings, testing equipment, and design software, often alongside SI conversions.

Complete list of kip-force [kipf] unit conversion