Candle Making Math: Container Volumes, Wax Weights, Fragrance & Dye Loads by Percentage, Batch Sizes, Cost per Candle and Pricing

What you'll build

What you will be able to do

Each lab ends with a concrete result that you build yourself and the checker confirms, cell by cell.

• Calculate how many millilitres of wax round and square containers hold up to their fill line, total the volume for a market order and find the pooled average fill per container.
• Look up each wax's fictional density, turn fill volumes into grams of wax per candle and per row, and total the wax for the order in kilograms.
• Turn a chosen fragrance load into grams, add it to the wax for the pour weight, compare the load with the fictional label's maximum and split a target pour weight back into wax and fragrance.
• Look up drops of liquid dye per kg from a fictional label, scale them to each batch, weigh a fictional additive as a share of the wax and total the dye chips for a whole production day.
• Total the pour weight of a production plan, find how many pots it takes with ROUNDUP, split the work into even pours and work out the wax left over after buying whole bags.
• Read a wick code and the wicks per candle from a fictional supplier chart by container diameter, count the wicks for a row and cost the small parts that go into each candle.
• Cost each candle from wax and fragrance prices per kg plus the container, parts and packaging, add your minutes at an hourly rate, find the labour share and test a rise in the wax price.
• Set retail prices with a multiplier and CEILING, derive wholesale prices for shops, measure the wholesale margin per size and chart last season's product mix.