Turn a mixing ratio into real amounts
The mixing ratio calculator converts two relative parts into component percentages and amounts for a chosen total. Name the two materials, choose whether the ratio is based on mass or volume, enter each side of the ratio, and set the desired total. The result keeps the first and second component order visible.
A 1:4 ratio contains five total parts. The first component is one fifth, or 20%, and the second is four fifths, or 80%. For a 5 L final mixture, that becomes 1 L and 4 L. Scaling the ratio to 2:8 gives the same shares because only relative parts matter.
Choose mass ratio or volume ratio
A mass ratio uses mass units for both components and the final total. A volume ratio uses volume units for both. Do not enter a mass for one side and a volume for the other unless a justified density conversion has already put them on one basis. The page separates unit choices to keep that decision explicit.
Ratios written on coatings, fuels, concentrates, resins, foods, or laboratory methods can use different conventions. Confirm whether 1:4 means component A to component B, concentrate to water, or another named order. Reversing the names changes the material amounts even though the same two numbers remain visible.
How component percentages are calculated
Each percentage equals its parts divided by the sum of both parts times 100. Each required amount equals that share times the desired total. The two percentages should sum to 100%, and the two calculated amounts should sum to the entered total. These checks are displayed with the result.
The parts do not need to be whole numbers. A ratio such as 0.5:1.5 is valid and equivalent to 1:3. Very different part sizes may produce a tiny component amount; confirm that available measuring equipment can deliver it accurately before treating a mathematically valid quantity as practical.
Check physical and safety assumptions
Volume may not be perfectly additive when liquids mix, and mass-to-volume behavior depends on density. Reactions, dissolved solids, temperature, trapped air, and contraction can change the final volume. Use final-volume preparation instructions when a method requires them instead of assuming that two poured volumes add exactly.
This calculator does not test compatibility, reaction hazards, curing specifications, fuel safety, disinfectant instructions, or exposure limits. A ratio printed by a manufacturer or procedure remains authoritative. Never use a generic arithmetic result to override required personal protection, ventilation, mixing order, or prohibited combinations.
Private calculation and result handling
Use descriptive names so a copied result still shows which material belongs to each side. Keep the mass or volume basis and unit with the amounts. If the total changes, recalculate rather than scaling rounded displayed numbers, especially when one component is small.
The values are calculated in the current browser tab. NexaCurrent does not upload the quantities, formulas, chemical names, element choices, or other information entered here, and no account is needed. Copying is a deliberate action after the answer and working are visible. Refreshing or leaving the page clears the current calculation, so keep a copied result if it is needed for later study.