Units of measurement
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Pounds per square inch (psi)
Atmosphere (atm)
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Pounds per square inch (psi)
Pound per square inch (psi) — a unit of pressure based on pounds of force applied per square inch. Primarily used in the USA and UK.
Atmosphere (atm)
Atmosphere (atm) — a unit of pressure based on the average atmospheric pressure at sea level, equal to 101,325 pascals.