Why raisin answers vary
Several current conversion references place raisins near 145–150 g per US cup, while other calculators show a result around 0.63–0.69 cup for 100 g. The spread is expected because raisins differ in moisture, size, type, and how tightly they settle.
PantryGauge uses 150 g per US cup for the headline practical result: 100 ÷ 150 = 0.67 cup. The number is an estimate, not a promise that every brand fills a cup identically.
Loose or packed matters
Pour raisins into a dry measuring cup and level them unless the recipe says to pack them. Do not press them down to force a larger mass into the written cup amount; that changes the measurement method.
For a fruitcake or dough where the ratio matters, weigh the raisins directly. A scale removes the air-space uncertainty that a volume cup cannot remove.
Dry raisins are not cooked fruit
This page answers dry raisins. Soaked or cooked raisins contain additional water and need a separate measurement. Golden raisins and regular dark raisins should also be treated as related but not automatically identical products.
Questions readers ask
How many cups is 100 g of raisins?
A practical answer is about ⅔ US cup, or about 0.67 cup using a 150 g-per-cup reference.
Why do some calculators say 0.63 or 0.69 cup?
They use different density, raisin-type, or packing references. Raisins leave variable air spaces, so the source convention matters.
Should raisins be packed into the cup?
Usually measure them loose and level unless the recipe specifically says packed. Keep the method beside the number.
Are golden raisins the same as regular raisins?
Not always. Size, moisture, and variety can change the volume, so use the product named by the recipe or weigh it.
Sources and method
Numerical answers are tied to the stated ingredient, state, cup convention, and source. Derived values are calculated from the cited reference and rounded for kitchen use.