The calculation
4 fl oz × 29.57 = 118 g of water × 0.86 = 102 g full · × 90% = 92 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 | 86 g (3.05 oz) | 5.2 g (0.18 oz) |
| 8% of wax | 85 g (2.99 oz) | 6.8 g (0.24 oz) |
| 10% of wax | 83 g (2.94 oz) | 8.3 g (0.29 oz) |
For a batch (8% fragrance)
| Candles | Wax | Fragrance oil |
|---|---|---|
| 6 | 509 g (1.12 lb) | 41 g (1.4 oz) |
| 12 | 1,017 g (2.24 lb) | 81 g (2.9 oz) |
| 24 | 2,035 g (4.49 lb) | 163 g (5.7 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
6 oz · 8 oz · 9 oz · 10 oz · 12 oz · 14 oz · 16 oz
Last reviewed: 2026-10-04 · Disclaimer