Combined Gas Law Calculator

Solves the combined gas law for the new gas volume using pressure, volume, and absolute temperature.

Inputs

Color mode links each input to the matching equation term and solving arithmetic.

Equation and Work

Equation:
Solving steps:
New volume, V2
—
mL
Law used
—
combined
P×V/T check
—
constant

Clinical Significance

Solves the combined gas law for the new gas volume using pressure, volume, and absolute temperature.

This calculator expands that idea by identifying the relevant measured values, substituting the selected inputs, and carrying the arithmetic through in the solving steps.

Used for gas-volume correction and respiratory gas behavior calculations.

Temperatures must be absolute temperatures in kelvins.

References (APA 7th Edition)

  1. Chang, D. W. (2020). Respiratory Care Calculations (Revised 4th ed.). Jones & Bartlett Learning. Formula content adapted from the uploaded text/reference packet.