Perfume making calculator
This tool runs entirely in your browser: no account, no signup, and nothing you type leaves this page. It is one of the free calculators.
How much concentrate and how much ethanol for one bottle?
The concentrate is the finished weight times the strength you want over the strength the concentrate already has, and everything left over is ethanol.
This works in grams, not millilitres, and so does the app. A bench weighs; it does not measure by volume, and PerfuMate carries no density model at all, treating a millilitre as a gram throughout. So read the first field as the weight of the finished perfume, and a 50 ml bottle as roughly 50 g. Roughly is the honest word: it is a rule of thumb, not an equality.
The third field is the concentrate's own aromatic strength. Leave it at 100 for a concentrate built entirely from neat materials; lower it if the concentrate already carries the solvent that came in with your dilutions, which is the number the first tool on this list computes.
The split is arithmetic and it is exact. Whether the perfume still smells like the trial at that strength is not arithmetic at all, and no calculator can tell you: raising the concentration does not raise every note by the same amount. The bench models the drydown at the concentration you pick, from the behaviour of the materials in the formula. Open the bench, free, no account needed to start.