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Culinary Tinker

Fluid ounces to grams converter

Fluid ounces describe liquid volume. To know grams you must pick the ingredient—water-like liquids differ from oil or syrup. This page uses ingredient-aware density like the rest of Culinary Tinker, not a one-size assumption.

How to convert US fl oz to grams

Convert fl oz to milliliters (US fl oz ≈ 29.57 ml), then apply ingredient density g/ml to reach grams. Syrups and creams deviate from water most.

Fluid ounces to grams conversion table

fl ozWaterAll-purpose flourGranulated sugarButterMilk
1 fl oz30 g16 g25 g28 g30 g
4 fl oz118 g63 g101 g114 g122 g
8 fl oz (1 cup)237 g125 g201 g227 g244 g
16 fl oz (1 pint)473 g251 g402 g454 g487 g

Rounded grams. Click ingredient names to open exact Tier 3 pages.

Popular fl oz to grams conversions

Liquids

Spices & Sweeteners

Frequently asked questions

How many grams is 8 fl oz of water?

About 237 g at typical kitchen temperatures—nearly the mass of 237 ml because water is ~1 g/ml.

Is a UK fl oz the same as US?

No. The UK imperial fluid ounce is about 28.41 ml; the US fluid ounce is ~29.57 ml. Recipes must state which system they assume.

Why does honey weigh more per fl oz than oil?

Higher sugar density increases mass for the same fluid volume.

Can I convert fl oz to grams for alcohol in cooking?

Yes—pick the liquid; ethanol-water mixes have their own density curve.