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CHEMISTRY / GASES

Ideal Gas Moles Calculator

Calculate ideal gas amount from pressure, volume, and absolute temperature. Review the equation, substituted values, assumptions, and result in one guided chemistry workspace.

  • 01 Calculated in this tab
  • 02 Values stay in this browser tab
  • 03 Use boundary

Conversion input

Known value

Filter by unit name, symbol, or code. Your current selections remain available.

Preparing the calculator...

Use boundary

Calculation path

Calculate ideal gas amount from pressure, volume, and absolute temperature. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.

Calculation path

n=PV/(RT)

What you provide

What you provide

  • Gas pressure expressed in atm, using the same scenario as the other inputs
  • Gas volume expressed in L, using the same scenario as the other inputs
  • Absolute temperature expressed in K, using the same scenario as the other inputs

What you receive

What you receive

  • Gas amount in mol from the stated equation
  • A symbolic formula plus substituted working with your values
  • Visible assumptions, field guidance, and an authoritative learning reference

Use boundary

Choose the maximum decimal places shown. This does not increase source accuracy.

Gas behaves ideally and the gas constant matches pressure, volume, and temperature units.

Use internally consistent units and retain extra precision when carrying the result into another calculation.

Reviewed reference factors

Reviewed reference factors