Water Grams to Fluid Ounces
Convert any amount of water between grams and fluid ounces. 1 gram of water equals 0.03 fl oz. Use the calculator for custom amounts, or choose an amount below.
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Popular Recipe Amounts
Common water measurements found in recipes.
Other Units for Water
Convert water from grams to other units. Each link has its own calculator and conversion amounts.
Similar Ingredients
Measuring Tip
Liquid densities vary: oils weigh less per cup than water, while syrups and honey weigh more. This is why ingredient-specific conversions matter even for liquids.
Understanding the Units
What is a Gram?
A gram (g) is a metric unit of mass equal to 1/1000 of a kilogram. It is the standard weight measurement for precise baking worldwide. Professional bakers prefer grams because they are more accurate than volume measurements.
What is a Fluid Ounce?
There are 8 fluid ounces in a US cup and 128 fluid ounces in a US gallon. The UK fluid ounce is slightly smaller (28.413 ml vs 29.574 ml), so UK and US recipes using fluid ounces will differ slightly.
Frequently Asked Questions
For water, 1 gram equals 0.03 fl oz. For other amounts, select an amount below or use the calculator for a custom quantity.
If you have a kitchen scale, weighing water gives you an exact starting point for this conversion. If you need to measure by volume instead, use a liquid measuring cup on a flat surface and read the level at eye height.
Very close. Pure liquid densities are consistent across brands, so the grams to fluid ounces conversion for water typically varies by less than 2-3%.
The same weight of different ingredients fills different volumes because each ingredient has a different density. A gram of water fills a different number of fluid ounces than a gram of a lighter or heavier ingredient. That is why this converter needs to know which ingredient you are measuring.