About this calculator
This calculator helps makers plan fragrance oil before a batch is mixed. It works for candles, wax melts, soaps, sprays, lotions, and simple test blends. You enter a batch weight, a unit, a fragrance load, and optional limits. The tool then converts the values, estimates oil weight, shows base weight, and prepares records for export.
Why fragrance load matters
Fragrance load is the percentage of fragrance oil used in a finished product or against the base material. A small change can affect scent strength, curing, texture, burn quality, and label accuracy. Candles may sweat when too much oil is used. Soap and body products also need careful limits. Always compare your result with the supplier sheet and the product category standard.
Advanced planning options
The calculator includes overage, retention, density, and component split fields. Overage covers oil left on tools or containers. Retention estimates how much scent remains after cure, heat, or evaporation. Density converts weight into milliliters for quick shop use. The note split helps divide one fragrance blend into top, middle, and base portions.
Best workflow
Start with a small test batch. Use grams when possible because grams are precise. Choose whether your entered weight is the finished batch or only the base material. Add the desired fragrance percentage. Enter the maximum allowed percentage from the fragrance document. Then review the warning area before mixing.
Record keeping
Each result can be downloaded as a CSV file or a simple PDF. This helps compare trials and repeat a successful blend later. Write the fragrance name, supplier, date, curing time, and observations in your own batch log. The calculator is a planning aid, not a safety certificate.
Testing tips
Fragrance oils behave differently across waxes, bases, temperatures, and cure times. Use the same pouring temperature for each trial. Label every sample with load percentage and date. Smell tests should be done after the normal cure period. For candles, also run a burn test in the final vessel. For body products, check the correct IFRA category before scaling. When the result seems high, reduce the load and test again. A balanced formula is usually safer, cleaner, and easier to reproduce. Keep notes simple, dated, and easy to review.