The Charles’s Law Calculator helps you understand how the volume of a gas changes with temperature when pressure and the amount of gas remain constant. Using the formula V₁ / T₁ = V₂ / T₂, this tool allows you to easily calculate any missing value, whether it’s the initial or final volume or temperature. It’s an excellent resource for chemistry students and teachers to visualize the direct relationship between temperature (in Kelvin) and volume. As temperature increases, the gas expands, and when temperature decreases, the gas contracts — perfectly following Charles’s Law. This calculator ensures quick, accurate, and reliable results, making it ideal for solving gas law problems in both classroom and laboratory settings.