Specific Weight

Specific weight, abbreviated as \( \gamma \) (Greek symbol gamma), also called unit weight, is the weight per unit volume of a substance.  It is defined as the force exerted by gravity on a unit volume of a material.

 

Specific weight formula
\( \gamma \;=\; \rho \; g \)     (Specific Weight) \( \rho \;=\;   \gamma \;/\; g \) \( g \;=\;   \gamma \;/\; \rho \)
Symbol	English	Metric
\( \gamma \)  (Greek symbol gamma) = Specific Weight	\(lbf\;/\;ft^3\)	\(N\;/\;m^3\)
\( \rho\)  (Greek symbol rho) = Density	\(lbf\;/\;ft^3\)	\(kg\;/\;m^3\)
\( g \) = Gravitational Acceleration	\(ft\;/\;sec^2\)	\(m\;/\;s^2\)