Compressibility Factor Calculator

Calculate real gas compressibility factor Z.

How to Use This Calculator

1

Enter P, V, n, T

Use SI units: Pa, m³, mol, K for consistency with R.

2

Calculate Z

Z ≈ 1 indicates near-ideal gas behavior; deviation shows real effects.

Formula

Z = (P × V) / (n × R × T)

Example: P=101325 Pa, V=0.024 m³, n=1 mol, T=298 K → Z≈0.981

About Compressibility Factor

Compressibility factor quantifies how much a real gas deviates from ideal behavior.

  • High-pressure and low-temperature gas analysis
  • Pipeline and reservoir engineering estimates

Frequently Asked Questions

What does Z = 1 mean?

Behavior matches the ideal gas law exactly.

Can I use other units?

Yes, but R and all variables must be in consistent units.