How to use this calculator
Enter the final wax-and-fragrance mass in each candle, excluding the container. Choose the percentage basis stated in your tested recipe. Use measured fill mass, not the container’s advertised fluid-ounce volume. Choose Check stock for this candle batch to carry the fill, percentage, basis and candle count into the stock planner without retyping them. Enter your actual stock and pack amounts there; they start blank. Extra preparation starts at zero, with containers, wicks and prices off. The stock planner supports percentages from 0 to 50%; a higher source percentage is not transferred or silently changed.
The formula
A worked example
Ten candles with 220 g of final blend each require 2,200 g total. At a 10% fragrance load based on wax, use 2,000 g wax and 200 g fragrance.
Assumptions & limitations
Wax-mass and finished-blend percentages use different denominators. This is batch arithmetic only; the input range does not certify a usable or safe load. Follow the specific wax and fragrance supplier’s maximum load and test the finished candle.
Common questions
Why isn’t the fragrance always 10% of the total?
With wax-mass basis, ten parts fragrance plus 100 parts wax make 110 parts blend. With finished-blend basis, 10% means ten parts fragrance in 100 parts total. Select the convention used by your recipe.
Can I enter container volume as grams?
No. Volume and mass differ, and wax density varies. Determine an appropriate fill mass first.
Supporting reference
The method above states this calculator’s assumptions. This reference provides related definitions and technical context.
CandleScience: candle-making terms and fragrance load ↗Formula and worked example checked against automated test cases. About our methodology.