Ideal Gas Law Calculator
Calculate pressure, volume, moles, or temperature using PV = nRT
Enter any three values to calculate the fourth
R = 8.314 J/(mol·K)
1 atm = 101,325 Pa, K = °C + 273.15
Formula Used
PV = nRT
Where: P = pressure, V = volume, n = moles, R = gas constant, T = temperature
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: University Physics
by Young & Freedman
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.