# Ideal Gas Law Calculator

> Solve pressure, volume, amount, or absolute temperature for an ideal gas in SI units.

Page: https://askcalculators.com/calculator/ideal-gas-law-calculator/
Definition: https://askcalculators.com/calculator/ideal-gas-law-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/ideal-gas-law-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/ideal-gas-law-calculator/?solveFor=pressure&pressure=101325&volume=0.024465&moles=1&temperature=298.15

## Inputs
- solveFor: Solve for; type=select; required; default=pressure; values=pressure|volume|moles|temperature
- pressure: Pressure P (Pa); type=number; required; default=101325; min=0.000001
- volume: Volume V (m³); type=number; required; default=0.024465; min=0.000001
- moles: Amount n (mol); type=number; required; default=1; min=0.000001
- temperature: Temperature T (K); type=number; required; default=298.15; min=0.000001

## Outputs
- result: Solved value; format=number; primary
- unit: Unit; format=text
- gasConstant: Gas constant used; format=text

## Formula
PV = nRT, with R = 8.31446261815324 J·mol⁻¹·K⁻¹

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.