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Fluid Ounces to Grams by Ingredient

Fluid ounces are where American measurement gets confusing. The word "ounces" appears on both liquid containers (fluid ounces, a volume) and food packaging (weight ounces, a mass), and they are not the same thing. When you need the actual gram weight of a fluid ounce measurement, the result depends entirely on what is in the container. A fluid ounce of water weighs about 29.6g, but a fluid ounce of honey weighs about 42.5g. For example, 1 fluid ounce of water is 29.57 g, while 1 fluid ounce of honey is 42.5 g. Choose your ingredient below.

Liquids

Fluid ounce measurements are most common for liquids in American recipes. Water is close to 29.6g per fluid ounce, oils are lighter at about 27g, and syrups can reach over 40g per fluid ounce. The spread is wide enough that using water as a universal approximation would introduce real errors.

water_drop Buttermilk water_drop Coconut Milk water_drop Coconut Oil water_drop Condensed Milk water_drop Cooking Wine water_drop Corn Syrup water_drop Evaporated Milk water_drop Heavy Cream water_drop Honey water_drop Light Cream water_drop Maple Syrup water_drop Milk water_drop Molasses water_drop Olive Oil water_drop Soy Sauce water_drop Tomato Sauce water_drop Vanilla Extract water_drop Vegetable Oil water_drop Water

Related Conversions

swap_horiz Grams to Fluid Ounces monitor_weight Fluid Ounces to Ounces

Frequently Asked Questions

What is the difference between fluid ounces and weight ounces? expand_more

Fluid ounces measure volume (how much space a liquid takes up), while weight ounces measure mass (how heavy something is). They are different units entirely. A fluid ounce of water happens to weigh about 1.04 weight ounces, but for other liquids the values diverge.

Why does "ounces" mean two different things? expand_more

Historical convention. Fluid ounces were originally defined so that 1 fluid ounce of water would weigh approximately 1 ounce. The convenient near-equivalence stuck in the name, but it only holds for water. For every other liquid, the two types of ounce give different numbers.

Is a UK fluid ounce the same as a US fluid ounce? expand_more

No. A US fluid ounce is 29.57 ml, while a UK (imperial) fluid ounce is 28.41 ml. The difference is small per ounce but adds up in cups and pints.

How do fluid ounces relate to cups? expand_more

There are 8 US fluid ounces in 1 US cup. This is a fixed volume relationship and does not depend on the ingredient. 1 fluid ounce is also about 29.6 ml or 2 tablespoons.