To convert cups of dry breadcrumbs into pounds, multiply by 0.23809924: one cup comes to 0.23809924 pounds. Every ingredient has its own figure here, because the units are measuring different things and only the density links them.
The density behind that figure is 0.45649 g per mL, against 1.00 for water. A cup of water weighs 236.6 g and a cup of dry breadcrumbs weighs 108 g, so this ingredient is 45.65% as heavy as the same volume of water — the single fact the whole page rests on.
A cup of dry breadcrumbs is 108 g when it is measured the standard way, but how it gets into the cup changes the answer: between about 97.2 g and 129.6 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.
Pounds are how dry breadcrumbs is bought rather than cooked, so this is the bag-size arithmetic: one pound is 4.2 cups, a 2 lb pack is 8.4 cups and a 5 lb sack is 21. That last figure is the one worth knowing before a large bake — it tells you whether one bag covers the recipe.
What the number depends on: Fine, dry and unseasoned. Fresh breadcrumbs weigh about half as much per cup because the crumb has not collapsed.
The formula
cups- The amount of dry breadcrumbs you are converting, in cups
0.23809924316- Pounds per cup for dry breadcrumbs, from its density of 0.45649 g/mL
pounds- The equivalent quantity in pounds
How it works, step by step
- Enter the quantity in cups.
- It is multiplied by 0.23809924316, the pounds-per-cup figure for dry breadcrumbs.
- The result appears in pounds, with a second reading in g 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 dry breadcrumbs in pounds
Take 1/3 cup of dry breadcrumbs: 0.333333 × 0.23809924 gives 0.0793664 pounds. Doubling the batch takes it to 0.158733 pounds, because the relationship is a straight proportion once the density is known.
3/4 cup of dry breadcrumbs in pounds
Take 3/4 cup of dry breadcrumbs: 0.75 × 0.23809924 gives 0.178574 pounds. Doubling the batch takes it to 0.357149 pounds, because the relationship is a straight proportion once the density is known.
3 cup of dry breadcrumbs in pounds
3 cup of dry breadcrumbs weighs out at 0.714298 pounds. Divide 0.714298 by 0.23809924 and you get back to 3 cup, which is the quickest check that the factor is the right way up.
How to read your score
Frequently asked questions
How many pounds are in 1 cup of dry breadcrumbs?
One cup of dry breadcrumbs is 0.23809924 pounds. Half that quantity is 0.11905 pounds and double it is 0.476198 pounds, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of dry breadcrumbs not 236 g like water?
Because weight per cup depends on what is in the cup. Dry breadcrumbs has a density of 0.45649 g per mL where water has 1.00, so a cup of it weighs 108 g rather than 236.6 g. That is a difference of 128.6 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 dry breadcrumbs by roughly 20% — about 10.8 g either side of 108 g — because fine, dry and unseasoned. Weighing removes the question entirely.
Is a fluid ounce of dry 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 dry breadcrumbs weighs 0.4762 oz, so the two readings differ by 52.4%. 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 dry breadcrumbs would weigh 114.12 g instead of 108 g — 6.12 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 dry breadcrumbs — roughly 21.6 g on a 108 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 dry breadcrumbs is 1 lb?
1 lb of dry breadcrumbs is 4.1999 cups — 4.19993 cups to one pound, so 1 × 4.19993 = 4.1999. Going that way is a division by 0.238099, or a multiplication by 4.19993 if you prefer.
Dry breadcrumbs in cups and pounds
| Cups | Pounds | Unrounded |
|---|---|---|
| 1/8 cup | 0.0297624 lb | 0.02976240539 |
| 1/4 cup | 0.0595248 lb | 0.05952481079 |
| 1/3 cup | 0.0793664 lb | 0.07936641439 |
| 1/2 cup | 0.11905 lb | 0.1190496216 |
| 2/3 cup | 0.158733 lb | 0.1587328288 |
| 3/4 cup | 0.178574 lb | 0.1785744324 |
| 1 cup | 0.238099 lb | 0.2380992432 |
| 1 1/2 cup | 0.357149 lb | 0.3571488647 |
| 2 cup | 0.476198 lb | 0.4761984863 |
| 3 cup | 0.714298 lb | 0.7142977295 |
| 4 cup | 0.952397 lb | 0.9523969726 |
Based on 108 g per cup of dry breadcrumbs. One cup of dry breadcrumbs is 0.23809924 pounds.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 108 g | 3.81 oz | 236.6 mL |
| 3/4 cup | 81 g | 2.86 oz | 177.4 mL |
| 2/3 cup | 72 g | 2.54 oz | 157.7 mL |
| 1/2 cup | 54 g | 1.9 oz | 118.3 mL |
| 1/3 cup | 36 g | 1.27 oz | 78.86 mL |
| 1/4 cup | 27 g | 0.952 oz | 59.15 mL |
| 1 tbsp | 6.75 g | 0.238 oz | 14.79 mL |
| 1 tsp | 2.25 g | 0.0794 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) |
|---|---|---|---|
| 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 (this page) | 108 g | 3.81 oz | 0.4565 |
| Coconut flour | 112 g | 3.951 oz | 0.4734 |
| Cake flour | 114 g | 4.021 oz | 0.4818 |
| Whole wheat flour | 120 g | 4.233 oz | 0.5072 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.