Ideal Gas Law Calculator
Calculate pressure, volume, temperature, or moles using the ideal gas law PV = nRT.
Solve For
PV = nRT
R = 0.08206 L*atm/(mol*K)
Pressure
1.0007 atm
Unit Conversions
atm1.0007
kPa101.3914
bar1.0139
mmHg760.4984
psi14.7056
Input Values (in SI units)
V22.4000 L
n1.0000 mol
T273.15 K
Standard Conditions Reference
STP (Standard Temperature and Pressure)
T = 273.15 K (0 C), P = 1 atm
1 mol gas = 22.4 L
Room Conditions
T = 298.15 K (25 C), P = 1 atm
1 mol gas = 24.5 L
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Chemistry: The Central Science
by Brown, LeMay, Bursten
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.