Ideal Gas Law
Solve ideal gas law problems for pressure using PV = nRT with clear substitutions, SI units, and step-by-step output.
Key formula
PV = nRT
About this tool
The ideal gas law is a compact way to connect pressure, volume, temperature, and amount of gas. This calculator is valuable because it shows how each quantity fits inside the same overall model rather than appearing as separate disconnected facts.
How to use this calculator
- Choose the variable you want to solve for and confirm which values are already known.
- Enter inputs in consistent units before calculating so the formula is applied correctly.
- Check whether the result is physically reasonable by comparing it with the size of the inputs.
- Use the step-by-step breakdown to see how the equation was rearranged and evaluated.