Calculate wax weight, fragrance oil, batch cost, and cost per jar for soy, coconut, beeswax, or blended container candles.
This tool is part of these guided projects. Each project provides step-by-step instructions with checklists and all the tools you need in one place.
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Jar fluid ounces are converted to wax weight using a practical container wax density estimate, then adjusted by fill level and jar count.
total fill weight = jar fl oz x 0.86 x fill % x jar countFragrance load is treated as a percentage of wax weight, which is how many candle makers and suppliers describe safe fragrance percentages.
The Candle Wax Calculator calculates raw material needs from project dimensions and repeat pattern spacing. Shrinkage, kerf, and trim allowances are included where applicable.
Material = Project Area × (1 + Waste Factor)Updated: July 2026
Enter jar size, count, and fragrance load to know how many pounds of wax and ounces of fragrance oil to prepare.
Add wax and fragrance costs to estimate material cost per jar before jars, wicks, labels, labor, and overhead.
A hobbyist enters measurements into the Candle Wax Calculator before buying yarn, filament, or resin to avoid mid-project shortages.
Jar volume is fluid ounces, while wax is weighed. Wax is less dense than water, so the weight is lower than the jar volume number.
Check the maximum fragrance load for your wax. Too much oil can cause sweating, weak burn performance, or safety issues.
Scale a candle batch by jar size, jar count, fill level, and fragrance load. Get wax pounds, fragrance ounces, total fill weight, and material cost per jar.