The vessel is usually the most expensive thing in your candle after your time. Compare two vessels side by side and see exactly what each one does to your cost, your margin, and your price.
Capacity is the vessel's water weight; the calculator converts to wax at 0.86 density and your fill level, then adds fragrance at your load.
Wax and fragrance costs are roughly fixed for a given size of candle. The vessel is where identical candles diverge: a $1.40 jar and a $2.60 tumbler holding the same wax are different businesses. The catch is that vessels also change what you can charge. A heavier, better-finished vessel often supports a retail price that more than covers its own upcharge, which is exactly what this comparison shows you in numbers instead of instinct.
Once a vessel wins, size its wick with the wick size calculator and pressure-test the full unit economics in the candle pricing calculator, which handles labor and overhead too.
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