Lubricant oils

Viscosity Index Calculator

Use this calculator to find the viscosity index of a lubricating oil. The viscosity in centiStokes at 40°C and the viscosity in centiStokes at 100°C are used as input data.

Viscosity cSt (mm²/s) a 40°C.

Viscosity cSt (mm²/s) a 100°C.

Viscosity index of the oil

0 cSt