Digital Tools and Services

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Viscosity Index Calculator (ASTM D2270)

Viscosity Index Calculator

Calculate the Viscosity Index according to ASTM D2270 standard

Kinematic Viscosity @ 40°C (cSt):

Kinematic Viscosity @ 100°C (cSt):

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Note: This calculator uses the ASTM D2270 standard to determine the Viscosity Index of petroleum products.

Valid for KV100 values from 2 cSt to 70+ cSt.