Ideal Gas Law (PV = nRT)

Calculate Ideal Gas Law (PV = nRT) instantly. Free online calculator with the exact formula, a worked example, and metric units. No signup required.

Ideal Gas Law (PV = nRT)

PressurePa
Volumem³
TemperatureK
Amount of substance n
0.999981mol
n = P·V / (R·T)Calculate Ideal Gas Law (PV = nRT) instantly. Free online calculator with the exact formula, a worked example, and metric units. No signup required.

More about: Ideal Gas Law (PV = nRT)

What it calculates

The “Ideal Gas Law (PV = nRT)” calculator computes Amount of substance n in mol from 3 parameters: pressure (Pa), volume (m³), temperature (K).

A standard physics formula used in educational and engineering tasks.

Example calculation

With parameters Pressure = 101,325 Pa, Volume = 0.0224 m³, Temperature = 273 K the result is 1 mol (n = P·V / (R·T)).

How to use

  1. Enter pressure, volume and temperature — each field above is adjustable with a slider.
  2. Amount of substance n (mol) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Ideal Gas Law (PV = nRT) calculated?
The Ideal Gas Law (PV = nRT) calculator computes Amount of substance n (in mol) from pressure, volume, temperature. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Ideal Gas Law (PV = nRT) calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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