Gas volume can be calculated using the ideal gas law, which is known as Boyle-Mariotte's law or the ideal gas law. This law describes the behavior of gases under certain conditions and is expressed as the following mathematical equation: PV = nRT Where:

- P stands for pressure (Pressure) in pascals (Pa) or other pressure units.
- V stands for volume in cubic meters (m³) or liters (L), and it must be consistent with the unit of pressure.
- n represents the number of moles (Number of moles) of gas.
- R is the gas constant (Gas Constant) in joules per mole-kelvin (J/(mol·K)).
- T is temperature (Temperature) in kelvin (K), and it must be consistent with the unit of the gas constant.

V = (nRT) / P

When you have the following values:

- n: Number of moles of gas.
- R: Gas constant (depends on the measurement units used).
- T: Required temperature in kelvin (Kelvin).
- P: Pressure in pascals (Pa).
- Enter these values into the equation, and you will get the gas volume in the appropriate unit (cubic meters or liters). Make sure to unify the units correctly.