The Boyle’s Law Calculator helps you determine the relationship between pressure and volume of a gas when temperature and the amount of gas remain constant. Using the formula P₁ × V₁ = P₂ × V₂, this calculator allows you to find any unknown variable easily — whether it’s the initial or final pressure or volume. It clearly demonstrates how pressure increases when volume decreases, and vice versa, according to Boyle’s Law. This tool is ideal for chemistry students, teachers, and professionals who want to quickly solve gas law problems with accurate and reliable results. By using consistent units for pressure and volume, you can better understand the inverse relationship between these two important gas properties.