The calculation
Candle wax weighs about 0.86 times as much as the same volume of water (fill-weight rule). The fragrance oil is part of that fill, so the wax is the fill weight divided by (1 + fragrance load). Your jar may hold slightly more or less than its label — fill it with water and weigh it for an exact figure.
By fragrance load
| Fragrance load | Wax | Fragrance oil |
|---|---|---|
| 6% of wax | 346 g (12.19 oz) | 20.7 g (0.73 oz) |
| 8% of wax | 339 g (11.96 oz) | 27.1 g (0.96 oz) |
| 10% of wax | 333 g (11.74 oz) | 33.3 g (1.17 oz) |
For a batch (8% fragrance)
| Candles | Wax | Fragrance oil |
|---|---|---|
| 6 | 2,035 g (4.49 lb) | 163 g (5.7 oz) |
| 12 | 4,069 g (8.97 lb) | 326 g (11.5 oz) |
| 24 | 8,139 g (17.94 lb) | 651 g (23.0 oz) |
Check the maximum fragrance load for your wax — commonly 10% for container soy waxes and up to 12–15% for some blends (see the candle calculator table).
Other jar sizes
4 oz · 6 oz · 8 oz · 9 oz · 10 oz · 12 oz · 14 oz
Last reviewed: 2026-10-04 · Disclaimer