1. Calculate the required amount of wax and additives for the candle.
a) If you’re using this container for the first time, measure how much wax it will take.
Place the container on the scale and tare it, fill the container with water up to the desired fill level of the future candle (allowing for the wick and a lid, if applicable).
Multiply the resulting water weight by 0.9 (average wax density).
Add a few extra grams of wax (3–10%) because some wax will remain on the walls of the pouring pot.
b) To calculate the fragrance, use any candle calculator online or do the math yourself:
multiply the wax mass by the fragrance load (%) and divide by 100.
This gives you the fragrance mass.
c) Then subtract the fragrance mass from the wax mass.
This gives you the wax mass accounting for the fragrance.
Example calculation:
Water mass in the container: 70 g
Fragrance load: 8%
Wax mass = 70 × 0.9 = 63 g
Fragrance mass = 63 × 8 / 100 = 5 g
Wax mass (net of fragrance) = 63 – 5 = 58 g
If you are making more than one candle at a time, multiply both the fragrance mass and the wax mass (net of fragrance) by the number of candles.
2. Place your pouring pots on the scale and tare them, then add the required amount of wax.