Calculate the mass percentage of a component in a mixture or compound.
Mass percent is the most common way to express concentration in industry because it needs no density or molar mass data. For dilute aqueous solutions, one mass per cent is about 10 g/L. Trace concentrations are quoted in ppm precisely because mass percent becomes unwieldy below about 0.01 per cent.
Mass Percent
Mass % = component mass ÷ total mass × 100
Mass % = component mass ÷ total mass × 100 Mass percent is the most common way to express concentration in industry because it needs no density or molar mass data. For dilute aqueous solutions, one mass per cent is about 10 g/L.
Trace concentrations are quoted in ppm precisely because mass percent becomes unwieldy below about 0.01 per cent.
This calculator takes 2 inputs: Mass of the component, Total mass of the mixture. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.