The Raoult’s Law Calculator determines the vapor pressure of a solution by summing the contributions of each component using Raoult’s Law, Psolution=∑Xi⋅Pi0P_\text{solution} = \sum X_i \cdot P_i^0Psolution​=∑Xi​⋅Pi0​. Users input the mole fraction and pure vapor pressure for each component as pairs, and the calculator computes the vapor pressure of the solution along with the substitution steps. This tool is useful for chemistry students and professionals analyzing solution behavior, colligative properties, and ideal mixtures of volatile liquids.