Processing...

`P = (n*R*T)"/"V`

Enter a value for all fields

The **ideal gas law (Pressure)** calculator compute pressure based on the Ideal Gas Law and the number of moles (n), the volume (V), the temperature (T) and the Ideal Gas Constant (R).

**INSTRUCTIONS:** Choose your preferred units and enter the following:

- (
**n**) This is the number of moles. - (
**V**) This is the volume - (
**T**) This is the temperature

**Pressure:** The pressure (**P**) is returned in atmospheres. However, this can be automatically converted to other pressure units (e.g. Pascals) via the pull-down menu.

Related Chemistry Calculators including theIdeal Gas Law, Charles Law, Boyles Law, Gay-Lussac Law and the Combined Gas Law, see vCalc's Chemistry calculator, formula and constants Library.

The Math / Science

The Ideal Gas Law is a thermodynamics equation that solves for specific variables of a gas at ideal conditions. For more information visit the ideal gas calculator. The Ideal Gas Law formula is:

where:

**P**is the pressure using the Ideal Gas Law.**V**is the volume using the Ideal Gas Law.**n**is the number of moles (n) using the Ideal Gas Law.**R**is the Universal Gas Constant**T**is the temperature using the Ideal Gas Law.

- Charles Law
- Ideal gas (solved for moles)
- Ideal gas law (solved for temperature)
- Ideal gas law (solved for volume)
- Boyle's Law

[1]https://en.wikipedia.org/wiki/Ideal_gas_law

[2]Whitten, et al. 10th Edition. Pp.435