Candle Making Calculator
Calculate wax, fragrance and wick quantities for a batch of candles.
Formula and sources updated · Data sources · 1View algorithm, constants and default inputs (JSON)
About this calculator
Plan a candle batch by wax weight, fragrance percentage and per-candle costs. Enter the measured wax weight for each candle; jar fluid ounces are volume and cannot be treated as ounces by weight. Fragrance percentage is calculated against wax weight. Check the wax and fragrance supplier’s maximum load for your exact materials; this tool does not validate compatibility or burn safety.
Worked example
calculated with the default values below
Number of candles 6 · Measured wax weight per candle 8 oz · Fragrance load 6 % · Wax price per pound 4 $ · Fragrance price per ounce 2 $ · Cost per wick 0.35 $ · Cost per jar 1.5 $ Wax needed 48.0 oz · Wax needed 3.00 lb · Fragrance oil 2.88 oz · Wax 12.00 $ · Fragrance 5.76 $ · Total batch cost 28.86 $ · Cost per candle 4.81 $
Method and assumptions
Wax = N·w; F = Wax·p ÷ 100; Cost = (Wax ÷ 16)c_w + F·c_f + N(c_k + c_j) Fragrance percentage is based on wax weight; check supplier limits for the exact products. Plan a candle batch by wax weight, fragrance percentage and per-candle costs. Enter the measured wax weight for each candle; jar fluid ounces are volume and cannot be treated as ounces by weight. Fragrance percentage is calculated against wax weight. Check the wax and fragrance supplier’s maximum load for your exact materials; this tool does not validate compatibility or burn safety. Use the cited guidance and your own measurements, bills or product specifications to choose inputs. Sample defaults are not current local data.
Data sources
Use the cited guidance and your own measurements, bills or product specifications to choose inputs. Sample defaults are not current local data.
Disclaimer
These calculators provide planning estimates only. Building codes, wiring regulations and safety requirements differ by country and change over time, and nothing here replaces a licensed professional or a permit. For structural, electrical or gas work, follow local code and have the installation inspected.
Implementation source
This record describes the implementation used by this page. It is not independent validation. External references, when available, support only the stated formula or definition; estimates and custom rules retain their own assumptions.
Formula and variables
Wax = N·w; F = Wax·p ÷ 100; Cost = (Wax ÷ 16)c_w + F·c_f + N(c_k + c_j)
- N
- Number of candles
- w
- Wax per candle, oz
- p
- Fragrance load, %
- F
- Fragrance oil, oz
- c_w
- Wax price per lb
- c_f
- Fragrance price per oz
- Wax
- Total wax, oz
- Cost
- Total cost
- c_k
- Wick cost per candle
- c_j
- Jar cost per candle
Fragrance percentage is based on wax weight; check supplier limits for the exact products.
Frequently asked questions
How is fragrance load calculated?
The calculator multiplies total wax weight by the entered percentage. Six candles with 8 oz of wax each at 6% use 2.88 oz of fragrance oil. This is only arithmetic: check the maximum load for the exact wax and fragrance products you use. Supplier limits vary, and the calculator does not verify compatibility or burn performance.
Which inputs and limits apply to Candle Making Calculator?
Use the units shown beside each field. These are form limits, not recommended settings. Number of candles: 1–500; Measured wax weight per candle: 1–200 oz; Fragrance load: 0–25 %; Wax price per pound: 0–100 $; Fragrance price per ounce: 0–100 $; Cost per wick: 0–50 $; Cost per jar: 0–100 $ Wax = N·w; F = Wax·p ÷ 100; Cost = (Wax ÷ 16)c_w + F·c_f + N(c_k + c_j) Fragrance percentage is based on wax weight; check supplier limits for the exact products. Plan a candle batch by wax weight, fragrance percentage and per-candle costs. Enter the measured wax weight for each candle; jar fluid ounces are volume and cannot be treated as ounces by weight. Fragrance percentage is calculated against wax weight. Check the wax and fragrance supplier’s maximum load for your exact materials; this tool does not validate compatibility or burn safety. Use the cited guidance and your own measurements, bills or product specifications to choose inputs. Sample defaults are not current local data.
What is a complete worked example for Number of candles = 6; Measured wax weight per candle = 8 oz?
Inputs: Number of candles = 6; Measured wax weight per candle = 8 oz; Fragrance load = 6 %; Wax price per pound = 4 $; Fragrance price per ounce = 2 $; Cost per wick = 0.35 $; Cost per jar = 1.5 $. Calculation: Wax = N·w; F = Wax·p ÷ 100; Cost = (Wax ÷ 16)c_w + F·c_f + N(c_k + c_j). Results: Wax needed = 48.0 oz; Wax needed = 3.00 lb; Fragrance oil = 2.88 oz; Wax = 12.00 $; Fragrance = 5.76 $; Total batch cost = 28.86 $; Cost per candle = 4.81 $.