ASTM D88 Saybolt Furol Viscosity Calculator

Enter one to three Saybolt Furol efflux timings in seconds. The calculator reports the average SFS and an approximate kinematic viscosity conversion.

Note: ASTM D88 is an empirical efflux-time method. The kinematic viscosity conversion shown is approximate and should not replace the current official ASTM standard, calibration, or validated laboratory software.