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How Much Is 1 Ounce of Vegetable Oil in Milliliters?

1 ounce of vegetable oil equals 30.77 ml. Vegetable oil has a density of 218g per cup. A lighter ingredient like flour (125g/cup) would fill more volume at the same weight, which is why ingredient-specific conversions matter.

1 ounce of vegetable oil
=
30.77ml
Try: 2 ounces = 61.53 ml 3 ounces = 92.30 ml 4 ounces = 123.07 ml 5 ounces = 153.83 ml
Compare: 1 ounce buttermilk = 27.38 ml 1 ounce coconut milk = 29.68 ml 1 ounce coconut oil = 30.77 ml
Convert a different ingredient
1 ounce of vegetable oil is also
0.13 cup (cups) 2.08 tbsp (tablespoons) 1.04 fl oz (fluid ounces)
30.77

Formula and Step-by-Step

(ounces × 28.35g/oz) ÷ 218g/cup × 236.588 = milliliters
  1. Start with 1 ounce of vegetable oil
  2. Convert ounces to grams: 1 × 28.35 = 28.35g
  3. 1 cup of vegetable oil = 218g
  4. 28.35g ÷ 218g/cup = 0.13 cups × 236.588 = 30.77 milliliters

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

Oils are lighter than water, so the same volume weighs less. Pour slowly into the measuring cup for accuracy, and wipe any drips from the outside before reading.

Vegetable Oil at Different Amounts

How vegetable oil scales across common ounces measurements. Your amount (1 ounce) is highlighted.

1 oz30.77 ml2 oz61.53 ml3 oz92.30 ml4 oz123.07 ml5 oz153.83 ml6 oz184.60 ml8 oz246.13 ml10 oz307.67 ml

Other Amounts of Vegetable Oil

Ounces Milliliters
1 ounce 30.77 ml
2 ounces 61.53 ml
3 ounces 92.30 ml
4 ounces 123.07 ml
5 ounces 153.83 ml
6 ounces 184.60 ml
8 ounces 246.13 ml
10 ounces 307.67 ml
12 ounces 369.20 ml
16 ounces 492.27 ml

Understanding the Units

What is an Ounce?

Weight ounces and fluid ounces are different measurements. A fluid ounce measures volume (29.574 ml), while an ounce measures weight (28.35g). They only align for water, where 1 fl oz weighs approximately 1 oz.

What is a Milliliter?

Milliliters measure volume and are used worldwide for cooking and baking. For water at room temperature, 1 ml weighs approximately 1 gram, but this relationship does not hold for other ingredients.

Frequently Asked Questions

About 30.77 ml, based on vegetable oil having a density of 218g per cup. The exact amount depends on how the ingredient is measured and the specific product.
First convert ounces to grams (1 ounce = 28.3495g), then divide by 218 (grams per cup), then multiply by 236.588 to get milliliters. For 1 ounce: 1 × 28.3495 = 28.35g, then 28.35 ÷ 218 = 0.13 cups × 236.588 = 30.77 ml.
For the most accurate results, weigh vegetable oil on a kitchen scale. If measuring by volume, use a liquid measuring cup on a flat surface and read the level at eye height.
Temperature has a minimal effect on most cooking liquids. The density of vegetable oil changes slightly with temperature, but the difference is usually less than 1-2% between refrigerator and room temperature. This conversion assumes room temperature.
Reverse the conversion: 30.77 ml ÷ 236.588 = 0.130044 cups, then 0.130044 × 218g/cup = 28.35g, then 28.35g ÷ 28.3495 = 1 ounce. Or use the Milliliters to Ounces converter.
person Written by Sean Day verified Reviewed by CookingConvert update Last updated Apr 3, 2026