Butter to Oil Conversion

Recipes often list amounts of butter which you might want to replace with oil for convenience or due to dietary choices or restrictions. This butter to oil converter allows you to easily convert amounts of butter to vegetable oil or coconut oil. The converter supports conversion in butter sticks, grams (g), milliliters (ml), ounces (oz), pounds (lb), teaspoons (tsp), tablespoons (tbsp), and cups.

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    Quick navigation:
  1. Substituting butter with vegetable oil
  2. Butter to oil conversion
  3. Butter conversion examples
  4. Butter to oil conversion table
  5. Does the type of vegetable oil matter?

    Substituting butter with vegetable oil

Butter is a dairy product typically produced from the fats and proteins in cow's milk. Vegetable oils can be produced from a variety of seeds and other parts of plants, with some notable examples including sunflower oil, olive oil, palm oil, soybean oil, grape seed oil, and coconut oil. Both are encountered in cooking recipes including baking, sauce-making, pan frying.

If a recipe lists butter as an ingredient, it can be substituted with any kind of vegetable oil that one prefers with little if any effect on the end result. Reasons to replace butter with oil may include:

  • dietary choice - adhering to a certain dietary choice like those of vegans or vegetarians necessitates the substitution of butter with vegetable oils. This also applies to religious practices such as fasting.
  • dietary restrictions - some medical conditions might benefit from a change of diet which might include the removal of animal fats, including butter. One reason might be saturated fats in which butter is rich (above 60%), whereas oils are not (e.g. olive oil has only 14% of saturated fats).
  • convenience - out of butter? Not having enough butter for a recipe could easily be rectified by substituting it with oil.

While some swear that nothing tastes exactly like butter, many find that substitution with oil makes no difference or is even preferable due to the unique flavor and moisture that oils provide. Popular oils to replace butter include sunflower oil, olive oil, and soybean oil.

    Butter to oil conversion

Since butter consists of about 80% butterfat, an easy rule of thumb is to replace the butter with vegetable oil equal to about 3/4 of the amount of butter specified in the recipe. For example, if a recipe calls for one cup of butter just use 3/4 of a cup of vegetable oil instead.

To substitute an amount of butter specified in a volume unit such as tablespoons, cups, or milliliters, one should take into account the different densities of butter and oil for a precise butter to oil conversion. However, since the differences are small, for small quantities of butter the 3/4 rule works just fine.

    Butter conversion examples

Here are some example butter to oil conversion calculations to get you started. Note that most of these are conversions between ingredients using the same measurement unit. Butter to oil conversion which includes switching the measurement unit is more difficult and using our butter to oil converter above is recommended so you do not need to remember the ratios between cups and grams, grams and cups, ounces and cups, tablespoons and cups, tablespoons and grams, and so on.

Sticks of butter to cups of oil

Sample task: convert 1 stick of butter to ounces of vegetable oil, knowing that a standard stick of butter is 1/4 lb or 4 oz. Solution:

stick of butter * 3 = oz of oil
1 stick of butter * 3 = 3 oz of oil
End result:
1 stick of butter is equal to 3 oz of oil

Ounces of butter to ounces of oil

Sample task: convert 4 oz of butter to ounces of vegetable oil, given that the butter to oil conversion ratio is 1:3/4 (3/4 = 0.75). Solution:

oz of butter * 0.75 = oz of oil
4 oz of butter * 0.75 = 3 oz of oil
End result:
4 oz of butter is equal to 3 oz of oil

Cups of butter to cups of oil

Sample task: convert 2 cups of butter to cups of vegetable oil, knowing that the conversion ratio of butter to oil is 1:3/4. Solution:

cups of butter * 0.75 = cups of oil
2 cups of butter * 0.75 = 1.50 cups of oil
End result:
2 cups of butter is equal to 1.50 cups of oil

Grams of butter to grams of oil

Sample task: convert 50 grams of butter to grams of oil. Solution:

g of butter * 0.75 = g of oil
50 g of butter * 0.75 = 37.50 g of oil
End result:
50 g of butter is equal to 37.50 g of oil

    Butter to oil conversion table

Butter to oil conversion chart
Butter Vegetable oil
Sticks Weight Cups Weight
1/4 stick 1 oz (28 g) 1/10 of a cup 0.185 oz (21 g)
1/2 stick 2 oz (57 g) 1/5 of a cup 0.37 oz (43 g)
3/4 stick 3 oz (85 g) 1/3 of a cup 1/2 oz (64 g)
1 stick 4 oz (113 g) 2/5 of a cup 3 oz (85 g)
1½ stick 6 oz (170 g) 3/5 of a cup 1.11 oz (128 g)
2 sticks 8 oz (227 g) 3/4 of a cup 1½ oz (170 g)
3 sticks 12 oz (340 g) 1.15 cups 1½ oz (255 g)

How much is a stick of butter?

In the United States, butter is often sold in sticks, each weighing 1/4 pounds or 4 ounces, which is about 113 grams. Due to historical differences in butter cutting and packaging machinery, 4-ounce sticks are mainly produced in two different shapes, with most recipes referring to Elgin-style, a.k.a. Eastern-pack shaped sticks. See "How much is a stick of butter?" for more.

butter and vegetable oil

    Does the type of vegetable oil matter?

Most vegetable oils, including olive oil, sunflower oil, soybean oil, palm oil, corn oil, rapeseed oil, linen oil, safflower oil, and others have approximately the same density and since their content is pure oil, they can be used interchangeably. You can substitute butter with any vegetable oil of your choice and the conversion calculation will be the same.

Some make the argument that coconut oil needs a separate treatment, with suggestions for the butter to oil ratio ranging from 1 to 0.8 to 1:1. With 1:0.8 the difference from other butter to oil conversions is minute. E.g. converting 250 g of butter to vegetable oil results in 187.5 grams of oil, whereas converting to coconut oil will result in roughly 200 grams. Obviously, a 1:1 substitution ratio is much different, but we were unable to find a source justifying this butter to coconut oil ratio.

Cite this converter & page

If you'd like to cite this online converter resource and information as provided on the page, you can use the following citation:
Georgiev G.Z., "Butter to Oil Converter", [online] Available at: https://www.gigacalculator.com/converters/butter-to-oil-converter.php URL [Accessed Date: 29 May, 2023].