Ideal Gas Law Calculator
PV = nRT — solve for any missing variable.
Amortization schedule
| # | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
Growth over time
| Year | Invested | Value |
|---|---|---|
Introduction
Ideal Gas Law Calculator — PV = nRT — solve for any missing variable. Enter Pressure P (atm) — blank if unknown, Volume V (L) — blank if unknown, Moles n — blank if unknown, Temperature T (K) — blank if unknown to get an instant, accurate result.
Formula
Ideal gas law: PV = nRT, with R = 0.0821 L·atm/(mol·K). Enter any three of P, V, n, T to solve for the fourth.
Step-by-step
- Enter the Pressure P (atm) — blank if unknown.
- Enter the Volume V (L) — blank if unknown.
- Enter the Moles n — blank if unknown.
- Enter the Temperature T (K) — blank if unknown.
- Click Calculate to see your result instantly.
Real-world example
Example: With Pressure P (atm) — blank if unknown = 1, Volume V (L) — blank if unknown = 22.4, Moles n — blank if unknown = 1, the Ideal Gas Law Calculator gives Unknown: T, Value: 272.9798.
Frequently Asked Questions
What units does this expect?
What is R?
What inputs does the Ideal Gas Law Calculator need?
How accurate is the Ideal Gas Law Calculator?
Is the Ideal Gas Law Calculator free to use?
About the Ideal Gas Law Calculator
The Ideal Gas Law Calculator uses a real, verifiable formula — Ideal gas law: PV = nRT, with R = 0.0821 L·atm/(mol·K). Enter any three of P, V, n, T to solve for the fourth. — so results are accurate every time, not an approximation.