Ratio: Use about 1⅓ times the volume of melted butter for oil (butter contains ~18% water).
| Vegetable oil (cups) | Vegetable oil (g) | Butter (cups) | Butter (g) |
|---|---|---|---|
| 1/8 | 25 | 0.17 | 38 |
| 1/4 | 50 | 0.33 | 75 |
| 1/3 | 66 | 0.44 | 101 |
| 1/2 | 99 | 0.67 | 151 |
| 2/3 | 132 | 0.89 | 201 |
| 3/4 | 148 | 1 | 226 |
| 1 | 198 | 1.33 | 302 |
| 1 1/2 | 297 | 2 | 453 |
| 2 | 396 | 2.66 | 604 |
Gram weights use 198 g per cup of vegetable oil and 227 g per cup of butter. Convert other amounts on the vegetable oil and butter pages.