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Ounces to Milliliters by Ingredient

Weight ounces to milliliters converts US weight to metric volume, bridging two different measurement systems and two different measurement types (mass and volume) in one step. This comes up when translating American recipes for metric kitchens, or when your scale reads ounces but your measuring tools are marked in ml. For example, 1 ounce of olive oil is 31.05 ml, while 1 ounce of honey is 19.73 ml. Choose your ingredient below.

Liquids

Most cooking liquids are close to the weight of water, but syrups and honey are much heavier. Oil is lighter than water.

Related Conversions

Frequently Asked Questions

It depends on the ingredient. 1 weight ounce of water is about 29.6 ml. 1 weight ounce of oil is about 32.3 ml (oil is lighter, so the same weight fills more volume). 1 weight ounce of honey is only about 20.2 ml.

A fluid ounce is always 29.57 ml by definition. A weight ounce converts to different ml amounts depending on the ingredient. For water they are close, for other liquids they differ.