Chemistry Calculators

Solve for pressure, volume, moles, or temperature using PV = nRT.

Calculate pressure or volume changes using Boyle's Law: P₁V₁ = P₂V₂.

Calculate temperature or volume changes using Charles's Law: V₁/T₁ = V₂/T₂.

Calculate pH from hydrogen ion concentration [H⁺] or from pOH.

Calculate molarity (concentration), moles, or volume of a solution.

Calculate dilution using C₁V₁ = C₂V₂ — solve for any one unknown.

Calculate moles, mass, or molar mass of a substance using n = m/M.

Calculate density, mass, or volume using ρ = m/V.

Calculate the percent yield of a chemical reaction from actual and theoretical yield.

Calculate concentration in parts per million (ppm) for solutions.

Calculate ΔG, ΔH, or ΔS using ΔG = ΔH − TΔS.