To convert cups of dry breadcrumbs into ounces, multiply by 3.8095879: one cup comes to 3.8095879 ounces. Every ingredient has its own figure here, because the units are measuring different things and only the density links them.
Water is the yardstick: 1 mL of it weighs 1 g. Dry breadcrumbs comes in at 0.45649 g per mL, or 45.65% of water, which is why a cup of it is 108 g rather than 236.6 g. Volume and weight only line up for water, and only in metric.
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.
One cup of dry breadcrumbs is 3.81 oz. US kitchen scales usually step in eighths of an ounce, which is 3.54 g — around 3.28% 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.
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
3.80958789055- Ounces per cup for dry breadcrumbs, from its density of 0.45649 g/mL
ounces- The equivalent quantity in ounces
How it works, step by step
- Enter the quantity in cups.
- It is multiplied by 3.80958789055, the ounces-per-cup figure for dry breadcrumbs.
- The result appears in ounces, 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 ounces
1/3 cup of dry breadcrumbs weighs out at 1.26986 ounces. Divide 1.26986 by 3.8095879 and you get back to 1/3 cup, which is the quickest check that the factor is the right way up.
3/4 cup of dry breadcrumbs in ounces
A recipe calling for 3/4 cup of dry breadcrumbs needs 2.85719 ounces on the scale. The arithmetic is 0.75 × 3.8095879 = 2.8571909, and halving the recipe halves the weight to 1.4286 ounces.
3 cup of dry breadcrumbs in ounces
3 cup of dry breadcrumbs weighs out at 11.4288 ounces. Divide 11.4288 by 3.8095879 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 ounces are in 1 cup of dry breadcrumbs?
One cup of dry breadcrumbs is 3.8095879 ounces. Half that quantity is 1.90479 ounces and double it is 7.61918 ounces, 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 16 oz?
16 oz of dry breadcrumbs is 4.1999 cups — 0.262496 cups to one ounce, so 16 × 0.262496 = 4.1999. Going that way is a division by 3.80959, or a multiplication by 0.262496 if you prefer.
Dry breadcrumbs in cups and ounces
| Cups | Ounces | Unrounded |
|---|---|---|
| 1/8 cup | 0.476198 oz | 0.4761984863 |
| 1/4 cup | 0.952397 oz | 0.9523969726 |
| 1/3 cup | 1.26986 oz | 1.26986263 |
| 1/2 cup | 1.90479 oz | 1.904793945 |
| 2/3 cup | 2.53973 oz | 2.53972526 |
| 3/4 cup | 2.85719 oz | 2.857190918 |
| 1 cup | 3.80959 oz | 3.809587891 |
| 1 1/2 cup | 5.71438 oz | 5.714381836 |
| 2 cup | 7.61918 oz | 7.619175781 |
| 3 cup | 11.4288 oz | 11.42876367 |
| 4 cup | 15.2384 oz | 15.23835156 |
Based on 108 g per cup of dry breadcrumbs. One cup of dry breadcrumbs is 3.8095879 ounces.
| 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.