The reference · every weight with its document

What a Cup Weighs

A cup of flour is 120 grams. Or 125, or 142, or 161, depending on whose chart you read and how they filled the cup. Name an ingredient and an amount and this shows you every published figure for it, in the source's own words, with what each one did and did not say about its cup and its hand. Where they agree you get a number. Where they do not, you get the range, and the reasons.

Your ingredient

A named ingredient from the curated table, or any food in USDA's own list.

Fractions are fine: 1½, 3/4, 2 1/3.

Grams runs the other way: how many cups is that?

Why the numbers differ, and by how much

Three things move a cup weight, and most charts state at most one of them. The product: two mills' all-purpose flour, spooned the same way, weigh differently. The cup: a metric cup holds more than a US customary cup, and that is the largest difference between any two cups a source in this table states (236.6, 240 or 250 mL; the 200 mL Japanese cup is further off, and no source here uses it). The hand: the same cup, filled by dipping it into the bag or by spooning flour into it, comes out heavier or lighter by more than the cups differ. The sources that measured this themselves:

who measuredwhat they foundread on

A whole recipe at once

Paste the ingredient lines. Each line with an amount and a cup, tablespoon or teaspoon gets its range; a line without one is left alone and says so.

Every food USDA lists with a cup

Which cup is a cup

The word means three different volumes in ordinary kitchens across four systems (Australia's cup is the metric 250 mL with a bigger spoon), and a fourth on a US nutrition label Each definition below is quoted from the document that sets it. None of them is applied to a source's figure: a number stays in the cup its source used.

The URL grammar: every answer here is a link
parametervaluesmeaning
iflour-apthe ingredient, by its id in the table (or usda:<fdc id> for a USDA long-tail food)
a1.5the amount
ucup | tbsp | tsp | gthe unit the amount is in
sus-customary | us-legal | metric | australian | japanesewhose spoons, which only sets the spoon-to-cup ratio
pking-arthurthe source you picked as your recipe's chart, optional

A state this grammar cannot carry clears the query rather than leaving a stale one, so a link you copy always points at the answer you were shown. cups.artwaste.land serves this same page and the same grammar, and is the shorter thing to hand somebody.