Combine up to five fragrance oils into a custom blend. Set each note's share of the total: the calculator computes exact amounts and flags if your percentages don't add up to 100.
When you blend two or more fragrance oils into one scent, the math gets fiddly fast: you are holding a total fragrance load steady while splitting it into ratio parts, in a batch measured by wax weight. This calculator takes the batch size, the overall load percentage, and your blend ratio, and gives you the exact weight of each oil so the blend comes out identical every time you make it.
If a blend is 3 parts cedar to 1 part vanilla, cedar takes three quarters of the total oil weight and vanilla one quarter. Simple with two oils, error-prone at three or four, which is exactly when consistency matters most.
You are pouring 1,000 grams of wax at an 8 percent load with a blend of 2 parts bergamot, 2 parts fir, 1 part amber. Total oil is 80 grams, and the ratio has five parts, so each part is 16 grams:
Six months from now, the same inputs give the same candle, which is the entire point. Scent consistency between batches is one of the quiet things that separates a brand from a hobby.
Blend them first in a separate container. It lets you smell and adjust the blend before committing a whole batch of wax, and premixed oil disperses more evenly at pour temperature.
Yes. Flashpoints and viscosities vary, and some oils throw harder than others at the same percentage, so a ratio that smells right in the bottle may need adjusting after a burn test.
The tools on this site run in your browser and keep nothing, so write your final ratios into your batch log. Your formulas are yours; we never see them.
Both, in order. Treat the calculator as the way to hit your recipe exactly, and the burn test as the way to decide what the recipe should be.
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