Free Online PVT Calculator

Calculate the properties of petroleum reservoir fluids with a reliable, simple calculator.

Gas Formation Volume Factor

Dranchuk-Abou-Kassem (1975)

N.B. The gas formation volume factor equation is used along with the Dranchuk-Abou-Kassem (DAK) (1975) correlation for the gas z compressibility factor.

Calculate more PVT properties

Choose from the most popular fluid correlations.

Gas Z Compressibility Factor

Gas Formation Volume Factor

Oil Bubble Point Pressure

Solution Gas-Oil Ratio

Oil Formation Volume Factor

Oil Viscosity

Oil Density

Oil Compressibility

Total Formation Volume Factor

Gas-Oil Surface Tension

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