How to use this calculator
Enter your container size either as a volume in fluid ounces (usually printed on the container or found in the product listing) or by entering the diameter and height in inches. The calculator uses the cylinder formula to compute volume from dimensions.
Select your wax type, which determines the density multiplier used to calculate wax weight. Set your fragrance load percentage or use the default for your wax type. Optionally enter material costs to see the price per candle.
Wax type comparison
| Wax | Density | Max fragrance | Best for |
|---|---|---|---|
| Soy | 0.86 | 10% | Container candles, clean burn |
| Paraffin | 0.90 | 12% | Strong scent throw, pillars |
| Coconut | 0.87 | 10% | Smooth finish, luxury candles |
| Beeswax | 0.96 | 6% | Natural scent, long burn time |
Frequently asked questions
How much wax do I need per candle?
Multiply your container volume in fluid ounces by the wax density factor. For soy wax, an 8 oz container needs about 6.9 oz of wax by weight. For paraffin, the same container needs about 7.2 oz. Always weigh wax rather than measuring by volume.
What is fragrance load?
Fragrance load is the percentage of fragrance oil relative to wax weight. Soy wax typically uses 6% to 10% (6% for subtle, 8 to 10% for strong). Paraffin can handle 10% to 12%. Exceeding the maximum can cause sweating or poor burn quality.
Why does wax type matter?
Different waxes have different densities, fragrance capacities, and burn characteristics. Soy burns clean but can frost. Paraffin throws scent well but is petroleum based. Coconut burns smoothly. Beeswax has a natural honey scent but holds less added fragrance.
How do I choose wick size?
Wick size depends on container diameter. Under 2 inches needs a small wick, 2 to 3 inches needs medium, 3 to 4 inches needs large, and over 4 inches needs multiple wicks. Always test burn your candles since wax type and fragrance load also affect performance.