Grams to fl oz Converter

Easily convert grams to fluid ounces of any liquid with our precise and user-friendly grams to fl ounces converter. Achieve accurate conversions now!

Density decides the answer — a cup of flour weighs far less than a cup of honey.
g/ml
Used when “Custom density” is selected.
Clear
Result0.033814 fl oz1 g of water
Density used1 g/ml1,000 kg/m³
1 g of water0.033814 fl oz

1 g of…

SubstanceDensity1 g weighs / measures
Water1 g/ml0.033814 fl oz
Milk (whole)1.03 g/ml0.032829 fl oz
Flour (all-purpose)0.529 g/ml0.063921 fl oz
Sugar (granulated)0.845 g/ml0.040017 fl oz
Butter0.911 g/ml0.037117 fl oz
Vegetable oil0.92 g/ml0.036754 fl oz
Honey1.42 g/ml0.023813 fl oz
Table salt1.217 g/ml0.027785 fl oz
Rice (uncooked)0.85 g/ml0.039781 fl oz

Why gram to fluid ounce (US) needs a substance

Grams measure weight and fluid ounce (US)s measure volume, so there is no single conversion factor between them. What bridges the two is density — how much a given volume of that particular substance weighs:

volume = mass ÷ density

Water is the easy case: it is almost exactly 1 g/ml, so 1 ml of water weighs 1 g and the numbers look identical. Nothing else behaves that way — flour is about half as dense, and honey is nearly half again as dense.

Using this for recipes

Pick the ingredient from the list and the conversion uses a typical density for it. Dry ingredients are the least predictable: scooping flour straight from the bag can pack in 20% more than spooning it in gently, which is exactly why baking recipes prefer weights. If you have a density from a supplier or a label, choose Custom density and enter it.

Densities here are typical values for guidance. For anything where precision matters, weigh it.