Ideal Gas Law Calculator (PV = nRT)

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Solve for pressure, volume, moles or temperature

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Pressure (atm)
Volume (L)
Amount (mol)
Temperature (K)
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Ideal Gas Law Calculator (PV = nRT) — at a glance

Leave one box empty and solve PV = nRT.

Your values
P = 1 atm
n = 1 mol
T = 273.15 K
Calculate
Result
V = 22.4 L

How to use it — step by step

Just your input — nothing to install or sign up for.

1

Enter your values

Fill in the boxes. Sample values are already there so you can see how it works.

2

Calculate

Press the button to get your answer instantly.

3

Read the result

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4

Copy it

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Pro tips

Small things that make the result better.

✦Fill three boxes and leave one empty.
✦Temperature must be in kelvin: K = °C + 273.15.

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