Candle Fragrance Load Calculator
Enter your wax weight and the fragrance load you want. The calculator returns how much fragrance oil to add and the total batch weight. Everything runs in your browser.
The formula
Worked example. 500 g of wax at 8% needs 40 g of fragrance oil, for a 540 g batch.
How to use it
- Weigh your wax (not the container) and enter it in grams or ounces.
- Enter the fragrance load as a percentage. Most soy and coconut waxes perform best at 6–10%; many paraffin blends accept up to 12%.
- Read the fragrance oil amount and add it to the melted wax at the temperature your supplier recommends, usually 80–85 °C (175–185 °F).
- Stir gently for about two minutes so the oil binds with the wax before pouring.
Questions
Is fragrance load a percentage of the wax or of the total batch?
Of the wax. The industry convention, and the one this calculator uses, is grams of oil per 100 g of wax. A few suppliers quote it as a share of the finished batch; if yours does, their 8% is roughly our 8.7%.
What happens if I add too much fragrance?
Oil the wax cannot bind will sweat out of the candle, weaken the structure, and can clog the wick or make it flare. Stay at or below the maximum load printed on the wax's data sheet.
Does fragrance load change how much wax I need for a container?
Slightly. Because the oil adds weight, an 8% load means about 7% less wax fills the same jar. Weigh a jar filled with water to estimate its capacity, then subtract the fragrance share.