Ideal Gas Law Calculator
Calculate gas pressure from amount, temperature and volume.
Enter Values
Calculation Result
How It Works
PV = nRT
Use consistent units or select the units you need.
How to use this calculator
What to enter
Enter or select the following as requested: Amount of gas; Amount unit; Temperature; Temperature unit; Volume; Volume unit; Pressure result. Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The scientific or engineering result follows the formula and units used by the calculator with the values entered. Check unit consistency, significant figures, assumptions, and whether the model applies to the material or conditions being studied.
When to use it
Use this for calculation checks, study, or preliminary engineering estimates. Validate critical laboratory, process, or safety decisions with the appropriate method, standards, and qualified review.