The calculation
9 fl oz × 29.57 = 266 g of water × 0.86 = 229 g full · × 90% = 206 g
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 | 194 g (6.86 oz) | 11.7 g (0.41 oz) |
| 8% of wax | 191 g (6.73 oz) | 15.3 g (0.54 oz) |
| 10% of wax | 187 g (6.61 oz) | 18.7 g (0.66 oz) |
For a batch (8% fragrance)
| Candles | Wax | Fragrance oil |
|---|---|---|
| 6 | 1,144 g (2.52 lb) | 92 g (3.2 oz) |
| 12 | 2,289 g (5.05 lb) | 183 g (6.5 oz) |
| 24 | 4,578 g (10.09 lb) | 366 g (12.9 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 · 10 oz · 12 oz · 14 oz · 16 oz
Last reviewed: 2026-10-04 · Disclaimer