About Us

IdealGasLawCalculator.com started as a compact tool to help students and instructors solve PV = nRT quickly—with sensible defaults, clear unit labels, and results that match classroom expectations.

What the calculator does

Enter any three of P, V, n, or T; we solve the fourth in real time.
Automatic conversions to and from SI (Pa, m³, K, mol) with a correct ideal-gas constant (R = 8.314462618 J·mol⁻¹·K⁻¹).
Flexible units (kPa, atm, bar, psi; L, mL; °C → K handled under the hood) so you can work in the system you prefer.

What I care about

Accuracy & transparency. We show you what’s being solved and keep units consistent.
Privacy by default. No account is required; inputs aren’t stored on our servers.
Speed & clarity. A clean interface that works well on phones and laptops.
Accessibility. Keyboard navigation and readable typography are non-negotiable.

Where this is going

Inline explanations and error hints for non-ideal conditions
R quick-pick values aligned to chosen units (e.g., L·atm·mol⁻¹·K⁻¹)
Saved scenarios and export to CSV/PDF
Dark mode and improved mobile ergonomics

Say hello

Got feedback, a bug, or a feature idea? I’d love to hear it. The best way to reach me is the contact page.

Last updated: November 4, 2025