HowMany.wiki
Contact Us!
Please get in touch with us if you:
- Have any suggestions
- Have any questions
- Have found an error/bug
- Anything else ...
To contact us, please click HERE.
Butter to Oil Conversion
Rule of thumb for baking: replace butter with 3/4 as much oil (1 cup butter → 3/4 cup oil).
= 3/4 cup of oil (12 tbsp)
1 cup butter × 3/4 = 3/4 cup oil
Butter to oil substitution chart
| Butter | Butter in grams | Oil (3/4) | Oil in tbsp |
|---|---|---|---|
| 1/16 cup | 14.1 g | < 1/8 cup | 3/4 tbsp |
| 1/8 cup | 28.3 g | ~ 1/8 cup | 1 1/2 tbsp |
| 1/4 cup | 56.5 g | ~ 1/4 cup | 3 tbsp |
| 1/3 cup | 75.3 g | 1/4 cup | 4 tbsp |
| 1/2 cup | 113 g | 3/8 cup | 6 tbsp |
| 2/3 cup | 151 g | 1/2 cup | 8 tbsp |
| 3/4 cup | 170 g | ~ 1/2 cup | 9 tbsp |
| 1 cup | 226 g | 3/4 cup | 12 tbsp |
| 1 1/4 cups | 283 g | ~ 1 cup | 15 tbsp |
| 1 1/3 cups | 301 g | 1 cup | 16 tbsp |
| 1 1/2 cups | 339 g | 1 1/8 cups | 18 tbsp |
| 1 2/3 cups | 377 g | 1 1/4 cups | 20 tbsp |
| 2 cups | 452 g | 1 1/2 cups | 24 tbsp |
| 2 1/4 cups | 509 g | ~ 1 2/3 cups | 27 tbsp |
| 2 1/3 cups | 527 g | 1 3/4 cups | 28 tbsp |
| 2 1/2 cups | 565 g | 1 7/8 cups | 30 tbsp |
| 2 3/4 cups | 622 g | 2 1/16 cups | 33 tbsp |
| 3 cups | 678 g | 2 1/4 cups | 36 tbsp |
For a gram-precise, fat-equivalent butter–oil conversion, use the CoolConversion calculator →
Does butter-to-oil substitution work?
Swapping oil for butter works best in muffins, quick breads, and many cakes, where moisture matters more than structure. Because oil is 100% fat (butter is about 80% fat and 15% water) and stays liquid, use 3/4 the volume so you don't add too much fat.
Note: the substitution affects texture and flavor — baked goods come out more tender and moist but lose butter's flavor and the flakiness butter gives to pastry and cookies. It is a guideline, not an exact chemical equivalence.
Butter to oil — FAQs
Why 3/4 cup of oil per cup of butter?
It's the standard baking rule. Butter is about 80% fat and oil is 100% fat, so using 3/4 of the volume keeps the total fat about the same. A stricter fat-equivalent calculation gives roughly 0.84 cup of oil per cup of butter — both are valid; this calculator uses the simpler 3/4 baking rule that most recipes assume.
Does it work for all recipes?
No — it works best where moisture matters more than structure, like muffins, quick breads, and many cakes. Avoid it where butter's solid fat and flavor are the point: flaky pastry, laminated dough, and cookies you want to spread and crisp. Treat it as a guideline, not an exact swap.
Need butter in sticks, cups or grams? Use the Butter Sticks Converter →