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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 the parameter values — every field above is adjustable with a slider.
  2. The result and related metrics are calculated automatically as you type.
  3. Use the additional metrics shown (if any) where needed.
  4. Copy the result or bookmark the page.

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