Formula
This calculator uses the equation below. Use it as a quick reference when checking setup before solving.
V_molar = (R*T)/PGas Laws
Molar Volume Calculator
Calculate the molar volume of an ideal gas at a given temperature and pressure.
V_molar = (R*T)/P
Run this calculator
Leave a nullable field blank to solve for it.
Variable glossary
T (T)
Temperature in Kelvin (K).
P (P)
Pressure in atmospheres (atm).
R (R)
Gas constant, default is 0.0821 L·atm/(K·mol).
Frequently Asked Questions
What does the Molar Volume calculator solve?
It solves Molar Volume problems in gas laws using your provided inputs and computes unknown values when nullable fields are left blank.
Do I need to convert units before using this tool?
Use the unit toggles where available (for example K/C and L/mL). ChemGenius converts values to the calculator's base units automatically before solving.
Can I save this result in my workflow?
Yes. After computing a result, you can continue into ChemGenius workflows like protocol drafting or notes to keep your calculation context attached to downstream work.