Mold volume: cylinder, taper, block and ball
The wax a mold takes is its inside volume times the specific gravity of the wax. The volume comes from its measurements.
A straight pillar is a cylinder: pi times the radius squared times the height. A tapered pillar is a conical frustum: pi times the height over three times the sum of the base radius squared, the base radius times the top radius, and the top radius squared. Set the top diameter to zero and it becomes a cone, which is a third of the cylinder on the same base. A block is length times width times height. A ball is pi over six times the diameter cubed.
Use inside measurements at the level you pour to. For a mold that is not one of these shapes, fill it with water, weigh the water and use the water weight mode of the candle wax calculator. Wax shrinks as it cools, so you may need a little extra to top up a pillar.
Chart: soy wax for a tapered pillar by height and base diameter
Each cell is the wax for one candle whose top diameter is the figure given above, with no fragrance. A base equal to the top is a straight pillar.
| Bottom diameter | ||||
|---|---|---|---|---|
| Height | 6 cm | 7.5 cm | 9 cm | 10 cm |
| 8 cm | 203.58 g | 258.71 g | 322.33 g | 369.45 g |
| 10 cm | 254.47 g | 323.39 g | 402.91 g | 461.81 g |
| 12 cm | 305.36 g | 388.07 g | 483.49 g | 554.18 g |
| 15 cm | 381.70 g | 485.08 g | 604.36 g | 692.72 g |
| 20 cm | 508.94 g | 646.78 g | 805.82 g | 923.63 g |
Used by
- Candle mold wax calculatorWax weight for pillar, tapered, block and ball candle molds.