Weight meets volume

Ounces (weight) to millilitres converter

4 ounces (weight) of all-purpose flour is about 223.57 millilitres. Pick the ingredient and cup system your recipe uses; the reference behind every estimate stays in view.

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4 ounces (weight) of all-purpose flour is about

223.57

millilitres

Approximate recipe equivalent for All-purpose flour. Ingredient preparation and measuring technique affect the result.

Reference: 120 g per 236.5882 ml US reference cup. More precision: 223.5721 millilitres.

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Volume depends on the ingredient and the measuring method. Results crossing weight and volume are recipe estimates.

Ounces (weight) to millilitres table

Fixed reference: All-purpose flour · Spoon into the cup and level; do not pack. The calculator above is editable.

Ounces (weight) to millilitres for all-purpose flour at 120 g per US reference cup (approximate)
Ounces (weight)	Millilitres (approx.)
0.5 oz	27.9465
1 oz	55.893
2 oz	111.7861
4 oz	223.5721
8 oz	447.1442
12 oz	670.7164
16 oz	894.2885

Formula. millilitres = ounces (weight) ÷ grams per millilitre of the ingredient. Example: 4 oz of all-purpose flour → 223.5721 millilitres.

How to convert ounces (weight) to millilitres

This calculation crosses from mass to volume, so it needs an ingredient reference. The calculator starts with all-purpose flour at 120 grams per US reference cup (spoon into the cup and level; do not pack). Choose the exact ingredient and form your recipe means before using the answer.

For a weight input, convert to grams, divide by the ingredient's grams per reference cup, then adjust for the selected cup or spoon volume. For a volume input, reverse the process. The answer is a recipe equivalent, not a laboratory density measurement, so brand, moisture, packing and measuring technique can all change the practical result.

Choose the measurement your recipe means

The default cup is US customary at 236.5882365 ml. Metric and Australian cups use 250 ml. A metric tablespoon is 15 ml; an Australian tablespoon is 20 ml. Fluid ounces, pints, quarts and gallons in this interface stay US liquid units whichever cup system you select.

An ounce by weight measures mass; a fluid ounce measures volume. They are different units. If your recipe gives a dry ingredient in ounces, select "Ounces, weight (oz)" and then the ingredient for any conversion to cups. Eight US fluid ounces make a US cup, but that is not a rule for dry ounces.

A few useful answers

Kitchen questions, answered.

Do I need to choose an ingredient?

Yes. Weight and volume connect through the ingredient's reference weight. A cup of flour and a cup of sugar have different masses, so the converter never assumes one universal value.

Can I enter a fraction?

Yes. Enter a decimal such as 0.5, a fraction such as 1/2, a mixed fraction such as 1 1/2, or a Unicode fraction such as ½. Blank, negative and zero-denominator inputs are rejected with a message.

Why does switching the cup system change the result?

US customary cups hold 236.5882365 ml. Metric and Australian cups hold 250 ml. The same amount therefore occupies a different number of cups, and Australian tablespoons (20 ml) differ from metric ones (15 ml).

Sources behind the numbers

Sources checked September 25, 2026. Ingredient values are recipe equivalents, not laboratory densities.