Ounces of panko breadcrumbs to cups runs on one number, 0.47249205 cups per ounce. It is a measured property of this ingredient rather than a defined conversion, which is why a generic volume-to-weight tool cannot give you it.
The density behind that figure is 0.25361 g per mL, against 1.00 for water. A cup of water weighs 236.6 g and a cup of panko breadcrumbs weighs 60 g, so this ingredient is 25.36% as heavy as the same volume of water — the single fact the whole page rests on.
A cup of panko breadcrumbs is 60 g when it is measured the standard way, but how it gets into the cup changes the answer: between about 54 g and 72 g covers the range from lightly spooned to firmly packed. That 20% spread is larger than most of the adjustments recipes fuss over, and it disappears entirely the moment the ingredient is weighed instead.
One cup of panko breadcrumbs is 2.116 oz. US kitchen scales usually step in eighths of an ounce, which is 3.54 g — around 5.91% of a cup of this ingredient, so the scale is precise enough for a full cup and coarse for a spoonful. That is why recipes mix the two systems: ounces for the bulk, spoons for the small amounts.
The condition this weight assumes: The lightest crumb there is. The flakes are large and mostly air, which is exactly what keeps a coating crisp.
The formula
ounces- The amount of panko breadcrumbs you are converting, in ounces
0.472492052083- Cups per ounce for panko breadcrumbs, from its density of 0.25361 g/mL
cups- The equivalent quantity in cups
How it works, step by step
- Enter the quantity in ounces.
- It is multiplied by 0.472492052083, the cups-per-ounce figure for panko breadcrumbs.
- The result appears in cups, with a second reading in tbsp beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
2 oz of panko breadcrumbs in cups
A recipe calling for 2 oz of panko breadcrumbs needs 0.944984 cups on the scale. The arithmetic is 2 × 0.47249205 = 0.9449841, and halving the recipe halves the weight to 0.472492 cups.
4 oz of panko breadcrumbs in cups
4 oz of panko breadcrumbs weighs out at 1.88997 cups. Divide 1.88997 by 0.47249205 and you get back to 4 oz, which is the quickest check that the factor is the right way up.
12 oz of panko breadcrumbs in cups
Take 12 oz of panko breadcrumbs: 12 × 0.47249205 gives 5.6699 cups. Doubling the batch takes it to 11.3398 cups, because the relationship is a straight proportion once the density is known.
How to read your score
Frequently asked questions
How many cups are in 1 oz of panko breadcrumbs?
One ounce of panko breadcrumbs is 0.47249205 cups. Half that quantity is 0.236246 cups and double it is 0.944984 cups, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of panko breadcrumbs not 236 g like water?
Because weight per cup depends on what is in the cup. Panko breadcrumbs has a density of 0.25361 g per mL where water has 1.00, so a cup of it weighs 60 g rather than 236.6 g. That is a difference of 176.6 g per cup, and it is the reason a single volume-to-weight factor cannot be applied to every ingredient.
Does how I measure it change the weight?
Yes, and by more than most people expect. Handling changes the weight of a cup of panko breadcrumbs by roughly 20% — about 6 g either side of 60 g — because the lightest crumb there is. Weighing removes the question entirely.
Is a fluid ounce of panko breadcrumbs the same as an ounce?
No. A fluid ounce is a volume — one eighth of a US cup, 29.57 mL — and an ounce is a weight. One fluid ounce of panko breadcrumbs weighs 0.2646 oz, so the two readings differ by 73.5%. They coincide only for something with the density of water, and then only roughly.
Is this a US cup or a metric cup?
US customary: 236.59 mL, which is the cup every US recipe means. A metric cup is 250 mL, so the same cup of panko breadcrumbs would weigh 63.401 g instead of 60 g — 3.4 g more, or 5.67%. Australian and some European recipes use the metric cup, and the difference is large enough to matter in baking.
Do I need a scale for this, or will measuring cups do?
A scale, if the result matters. Volume measuring carries a spread of about 20% for panko breadcrumbs — roughly 12 g on a 60 g cup — while a domestic scale is accurate to a gram or two. For anything where the ratio of ingredients drives the outcome, bread and pastry above all, weigh it.
How much does 2 cup of panko breadcrumbs weigh?
2 cup of panko breadcrumbs comes to 120 g, or 4.2329 ounces. This page runs that calculation in reverse — enter a weight and it returns the volume — and the cups-to-ounces page does it in the direction the question is usually asked.
Panko breadcrumbs in ounces and cups
| Ounces | Cups | Unrounded |
|---|---|---|
| 1/2 oz | 0.236246 cup | 0.236246026 |
| 1 oz | 0.472492 cup | 0.4724920521 |
| 2 oz | 0.944984 cup | 0.9449841042 |
| 3 oz | 1.41748 cup | 1.417476156 |
| 4 oz | 1.88997 cup | 1.889968208 |
| 6 oz | 2.83495 cup | 2.834952313 |
| 8 oz | 3.77994 cup | 3.779936417 |
| 12 oz | 5.6699 cup | 5.669904625 |
| 16 oz | 7.55987 cup | 7.559872833 |
Based on 60 g per cup of panko breadcrumbs. One ounce of panko breadcrumbs is 0.47249205 cups.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 60 g | 2.12 oz | 236.6 mL |
| 3/4 cup | 45 g | 1.59 oz | 177.4 mL |
| 2/3 cup | 40 g | 1.41 oz | 157.7 mL |
| 1/2 cup | 30 g | 1.06 oz | 118.3 mL |
| 1/3 cup | 20 g | 0.705 oz | 78.86 mL |
| 1/4 cup | 15 g | 0.529 oz | 59.15 mL |
| 1 tbsp | 3.75 g | 0.132 oz | 14.79 mL |
| 1 tsp | 1.25 g | 0.0441 oz | 4.929 mL |
US customary measures: 1 cup = 236.59 mL, 1 tbsp = 14.79 mL, 1 tsp = 4.93 mL.
| Ingredient | Grams per cup | Ounces per cup | Density (g/mL) |
|---|---|---|---|
| Panko breadcrumbs (this page) | 60 g | 2.116 oz | 0.2536 |
| Cocoa powder | 85 g | 2.998 oz | 0.3593 |
| Rolled oats | 90 g | 3.175 oz | 0.3804 |
| Oat flour | 92 g | 3.245 oz | 0.3889 |
| Almond flour | 96 g | 3.386 oz | 0.4058 |
| Rye flour | 102 g | 3.598 oz | 0.4311 |
| Dry breadcrumbs | 108 g | 3.81 oz | 0.4565 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.