Mass Percent Calculator
Calculate the mass percent of any component in a mixture by entering component mass and total mixture mass.
Enter values and click Calculate to see the result.
Mass Percent Result
% (w/w)
Component
Remainder
Property
Value
Component mass
Total mass
Mass fraction
Remainder mass
Composition Breakdown
Component
Mass (g)
Mass %
Total
100.00%
Required Component Mass
grams needed
Property
Value
Target mass %
Total mass
Component mass needed
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Summary
Calculate the mass percent of any component in a mixture by entering component mass and total mixture mass.
How it works
- Enter the mass of the component whose percent you want to find.
- Enter the total mass of the mixture (or add multiple components to compute the total automatically).
- Click Calculate to see the mass percent instantly.
- Switch to multi-component mode to break down a mixture into all its parts and see each component's weight percent.
- Use the Reverse Solver to find the component mass needed for a target mass percent.
Use cases
- Determine the concentration of a solute in a solution (e.g., saline, sugar water).
- Calculate the weight percent of an alloy component (e.g., carbon in steel).
- Verify pharmaceutical formulation concentrations in compounding.
- Compute nutrient or additive percentages in food manufacturing.
- Find the percent composition of chemical reagents before a reaction.
- Cross-check labeled concentrations on lab reagent bottles.
- Solve stoichiometry and gravimetric analysis problems in coursework.
- Calculate ingredient ratios in polymer blends or composite materials.
Frequently Asked Questions
Last updated: 2026-06-18 ·
Reviewed by Nham Vu