One cup of panko breadcrumbs is 60 grams, so converting cups of panko breadcrumbs to grams means multiplying by 60. That factor is specific to this ingredient — it comes from its density, not from any relationship between the two units.
Put next to water — 1 g per mL exactly — panko breadcrumbs measures 0.25361 g per mL. That ratio, 25.36%, is what separates this page from every other ingredient in the same units, and it is measured rather than defined.
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.
Grams are the unit this conversion is really for. A domestic scale resolves to a gram, which is 1.67% of a cup of panko breadcrumbs, so weighing gets an accuracy no measuring cup can reach. A 500 g pack of it is 8.333 cups, and a 1 kg pack 16.67.
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
cups- The amount of panko breadcrumbs you are converting, in cups
60- Grams per cup for panko breadcrumbs, from its density of 0.25361 g/mL
grams- The equivalent quantity in grams
How it works, step by step
- Enter the quantity in cups.
- It is multiplied by 60, the grams-per-cup figure for panko breadcrumbs.
- The result appears in grams, with a second reading in oz beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
1/3 cup of panko breadcrumbs in grams
A recipe calling for 1/3 cup of panko breadcrumbs needs 20 grams on the scale. The arithmetic is 0.333333 × 60 = 20, and halving the recipe halves the weight to 10 grams.
3/4 cup of panko breadcrumbs in grams
Take 3/4 cup of panko breadcrumbs: 0.75 × 60 gives 45 grams. Doubling the batch takes it to 90 grams, because the relationship is a straight proportion once the density is known.
3 cup of panko breadcrumbs in grams
Take 3 cup of panko breadcrumbs: 3 × 60 gives 180 grams. Doubling the batch takes it to 360 grams, because the relationship is a straight proportion once the density is known.
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Frequently asked questions
How many grams are in 1 cup of panko breadcrumbs?
One cup of panko breadcrumbs is 60 grams. Half that quantity is 30 grams and double it is 120 grams, 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 many cups of panko breadcrumbs is 500 g?
500 g of panko breadcrumbs is 8.3333 cups — 0.0166667 cups to one gram, so 500 × 0.0166667 = 8.3333. Going that way is a division by 60, or a multiplication by 0.0166667 if you prefer.
Panko breadcrumbs in cups and grams
| Cups | Grams | Unrounded |
|---|---|---|
| 1/8 cup | 7.5 g | 7.5 |
| 1/4 cup | 15 g | 15 |
| 1/3 cup | 20 g | 20 |
| 1/2 cup | 30 g | 30 |
| 2/3 cup | 40 g | 40 |
| 3/4 cup | 45 g | 45 |
| 1 cup | 60 g | 60 |
| 1 1/2 cup | 90 g | 90 |
| 2 cup | 120 g | 120 |
| 3 cup | 180 g | 180 |
| 4 cup | 240 g | 240 |
Based on 60 g per cup of panko breadcrumbs. One cup of panko breadcrumbs is 60 grams.
| 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.