ASTM D88 Saybolt Universal Viscosity Calculator

Enter one or more Saybolt Universal efflux times in seconds. The calculator returns the average SUS/SSU value and an approximate kinematic viscosity in cSt.

Note: ASTM D88 defines Saybolt viscosity test procedures. For formal reporting or certification work, use the current ASTM standard and applicable ASTM D2161 conversion tables rather than relying solely on approximate equations.