Candle Wax CalculatorCandle Wax Cost Calculator: Price Your Batch
Knowing what each candle actually costs to make is the difference between a hobby and a business. Most makers guess — and guess wrong, usually on the fragrance.
This wax cost calculator breaks your batch into wax cost, fragrance cost, total, and per-candle cost, in your choice of USD, GBP, EUR, CAD or AUD, with prices per lb, kg, 100 g or oz — matching how suppliers actually quote.
Wax cost calculator
Enter what your wax and fragrance cost — in your currency, priced per lb, kg, 100 g or oz — and how many candles the batch makes, and see the full breakdown plus the cost per candle.
How the batch cost formula works
Batch costing is two unit conversions plus two multiplications and a division. First, the wax price is normalized to a per-pound figure (prices per kg or per 100 g are converted), then wax grams are converted to pounds (divide by 453.592) and multiplied by that price — that is your wax cost. Second, the fragrance price is normalized to a per-ounce figure (prices per 100 g are converted), then fragrance grams are converted to ounces (divide by 28.3495) and multiplied by that price — that is your fragrance cost. Add the two for the total batch cost, then divide by the number of candles for the per-candle cost.
Suppliers commonly price wax by the pound and fragrance oil by the ounce, which is why those are the defaults — but you can enter prices per kg or per 100 g as well, and pick your currency (USD, GBP, EUR, CAD, AUD). The math is identical either way.
Limits: this covers wax and fragrance only. Wick, container, label, packaging, and labor are not included, so the per-candle figure is your materials floor, not your retail price.
The batch-cost formula, step by step
Candle costing reduces to four lines of arithmetic. Wax cost = (wax grams ÷ 453.592) × price per pound. Fragrance cost = (fragrance grams ÷ 28.3495) × price per ounce. Total = wax cost + fragrance cost. Per candle = total ÷ number of candles. Prices entered per kg, per 100 g or per oz are converted to the same basis first, so the units you pick do not change the answer.
The conversions matter because suppliers price wax and fragrance in different units. Mixing the units up is the single most common costing mistake — pricing fragrance by the pound understates its cost by a factor of sixteen.
Fragrance usually punches above its weight. A 10% fragrance load is one-tenth of the batch by weight, but at typical prices it is about a third of the batch cost. That is why the calculator shows it as its own line instead of burying it in the total.
Limitations of this costing
This calculator prices wax and fragrance only. Wicks, containers, labels, shrink wrap, shipping materials, and your time are real costs that belong in the per-candle number before you set a price.
Prices are snapshots. Wax and fragrance prices move with suppliers and order size — bulk wax bought 50 lb at a time can cost half the per-pound price of a 10-lb bag. Re-run the numbers whenever your supplier or order size changes.
Finally, the calculator assumes every gram you weigh ends up in a candle. Spills, test pours, and wick-sample candles consume materials too; serious costers add a small waste factor, often 5%, on top.
Worked example: 500 g batch, 4 candles
Take a batch of 500 g wax at $8.00/lb, 40 g fragrance at $3.00/oz, poured into 4 candles. First the wax: 500 ÷ 453.592 = 1.1 lb, and 1.1 × $8.00 = $8.82. Then the fragrance: 40 ÷ 28.3495 = 1.41 oz, and 1.41 × $3.00 = $4.23.
Add them: $8.82 + $4.23 = $13.05 total batch cost. Divide by 4 candles: $13.05 ÷ 4 = $3.26 per candle in wax and fragrance.
Notice the fragrance — one-tenth of the weight — is about a third of the batch cost ($4.23 of $13.05, roughly 32%). That is why the calculator shows it as its own line instead of burying it in the total.
Amounts above are in US dollars; the calculator itself supports USD, GBP, EUR, CAD and AUD, and prices per kg or per 100 g as well as per lb and per oz.
Related calculators
- Wax Melt CalculatorFree wax melt calculator: enter your clamshell cavities and segment size to get wax and fragrance oil amounts in grams, with a worked example.
- Soy Wax CalculatorFree soy wax calculator: enter container diameter, height, and candle count to get wax and fragrance oil amounts in grams, with a worked example.
- Wax Weight CalculatorFree wax weight calculator: convert ml or fl oz to grams and ounces for soy, paraffin, coconut, beeswax, and gel wax, with density table and examples.
Go back to the candle wax calculator for all ten calculators.
Frequently asked questions
How do I calculate the cost of one candle?
Add up the wax cost (weight in the pricing unit × price per unit) and the fragrance cost (weight in the pricing unit × price per unit), then divide by the number of candles in the batch. This calculator does all of it — just enter your amounts, prices, units, and currency.
Why is fragrance priced per ounce but wax per pound?
That is how many candle suppliers sell them: wax comes in bulk bags often priced by the pound, while fragrance oils come in smaller bottles often priced by the ounce. Fragrance is far more expensive per unit of weight, so an ounce-based price keeps the numbers readable. If your supplier quotes per kg or per 100 g, choose that unit above — the calculator converts it.
How many grams are in a pound and an ounce?
One pound is 453.592 g and one ounce is 28.3495 g. The worked example above shows both conversions in action.
Does this include the wick and container cost?
No — this calculator covers wax and fragrance oil, which are usually the two biggest variable costs. Add your wick, container, label, and packaging costs on top to get the true per-candle materials cost.
How do I turn the per-candle cost into a retail price?
There is no universal markup rule — treat any formula as an adjustable assumption and do the math for your own costs, market, and positioning. One example assumption you can change is 3–4× your total materials cost as the wholesale price, then roughly double that for retail. Written plainly: wholesale target = per-candle materials × 3 (to 4); retail target = wholesale × 2. Start from an honest per-candle cost — which this calculator gives you — before applying any markup formula.
Why did my fragrance cost come out so high?
Fragrance oil is the priciest ingredient per gram in most candles. At typical prices, a 10% fragrance load is one-tenth of the batch by weight but about a third of the batch cost. If it dominates your cost, try a lower fragrance load within the safe range for your wax, or compare fragrance suppliers.
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