Butter to Oil Conversion Calculator - Chart, Ratio and Grams
Convert any amount of butter to oil for baking - 100g, 125g, 1/4 cup, 1/2 cup or 1 cup. Uses the standard 3:4 substitute ratio.
The butter to oil substitute ratio is 3:4 - for every 1 cup of butter, use 3/4 cup of oil. Common conversions: 100g butter = 75g oil, 125g butter = 94g oil, 1/2 cup butter = 6 tablespoons oil, 1/4 cup butter = 3 tablespoons oil. The ratio works because butter is about 80% fat and 20% water and milk solids, while oil is 100% fat. This applies to vegetable oil, canola oil and margarine to oil conversions alike. For recipes that cream butter and sugar together, oil may not be a suitable substitute as it changes the texture. Coconut oil can be used 1:1 with butter when solid.
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Frequently asked questions
Use 3/4 cup (12 tablespoons) of oil to replace 1 cup of butter. This is the standard 3:4 ratio used in baking.
Yes, but use a light or mild olive oil. Extra virgin olive oil has a strong flavor that works in savory baking but may overpower sweet recipes.
Yes, oil makes baked goods more moist and dense. Butter contributes flakiness and a lighter crumb due to its water content creating steam.
100g of butter equals 75g of oil. 125g of butter equals about 94g of oil. Both use the standard 3:4 ratio - multiply the butter weight by 0.75.
Use 3/4 the amount - so 1 cup butter becomes 3/4 cup vegetable oil, 1/2 cup butter becomes 6 tablespoons oil. The same ratio works for canola oil and any other neutral cooking oil.