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.
The strength is by weight, the way the app weighs. Enter the bottle in milliliters or in grams. In milliliters the tool takes the finished perfume at 0.79 g per ml, the density of ethanol, so a 50 ml bottle is 39.5 g. A concentrate is denser than ethanol, so the stronger the perfume, the more the bottle comes out a little short of full rather than over it. For an oil carrier, use the oil's own density and enter grams.
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. PerfuMate models the drydown at the concentration you pick, from the behavior of the materials in the formula. Start a formula, free. No account needed to start.