One cup of graham cracker crumbs is 5.0089026 ounces, so converting cups of graham cracker crumbs to ounces means multiplying by 5.0089026. 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 — graham cracker crumbs measures 0.6002 g per mL. That ratio, 60.02%, is what separates this page from every other ingredient in the same units, and it is measured rather than defined.
A cup of graham cracker crumbs is 142 g when it is measured the standard way, but how it gets into the cup changes the answer: between about 127.8 g and 170.4 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 graham cracker crumbs is 5.009 oz. US kitchen scales usually step in eighths of an ounce, which is 3.54 g — around 2.5% 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: Finely crushed. A 9-inch crumb crust takes about a cup and a half of them.
The formula
cups- The amount of graham cracker crumbs you are converting, in cups
5.00890259684- Ounces per cup for graham cracker crumbs, from its density of 0.6002 g/mL
ounces- The equivalent quantity in ounces
How it works, step by step
- Enter the quantity in cups.
- It is multiplied by 5.00890259684, the ounces-per-cup figure for graham cracker crumbs.
- 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 graham cracker crumbs in ounces
Take 1/3 cup of graham cracker crumbs: 0.333333 × 5.0089026 gives 1.66963 ounces. Doubling the batch takes it to 3.33927 ounces, because the relationship is a straight proportion once the density is known.
3/4 cup of graham cracker crumbs in ounces
Take 3/4 cup of graham cracker crumbs: 0.75 × 5.0089026 gives 3.75668 ounces. Doubling the batch takes it to 7.51335 ounces, because the relationship is a straight proportion once the density is known.
3 cup of graham cracker crumbs in ounces
Take 3 cup of graham cracker crumbs: 3 × 5.0089026 gives 15.0267 ounces. Doubling the batch takes it to 30.0534 ounces, because the relationship is a straight proportion once the density is known.
How to read your score
Frequently asked questions
How many ounces are in 1 cup of graham cracker crumbs?
One cup of graham cracker crumbs is 5.0089026 ounces. Half that quantity is 2.50445 ounces and double it is 10.0178 ounces, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of graham cracker crumbs not 236 g like water?
Because weight per cup depends on what is in the cup. Graham cracker crumbs has a density of 0.6002 g per mL where water has 1.00, so a cup of it weighs 142 g rather than 236.6 g. That is a difference of 94.6 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 graham cracker crumbs by roughly 20% — about 14.2 g either side of 142 g — because finely crushed. Weighing removes the question entirely.
Is a fluid ounce of graham cracker crumbs 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 graham cracker crumbs weighs 0.6261 oz, so the two readings differ by 37.4%. 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 graham cracker crumbs would weigh 150.05 g instead of 142 g — 8.05 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 graham cracker crumbs — roughly 28.4 g on a 142 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 graham cracker crumbs is 16 oz?
16 oz of graham cracker crumbs is 3.1943 cups — 0.199645 cups to one ounce, so 16 × 0.199645 = 3.1943. Going that way is a division by 5.0089, or a multiplication by 0.199645 if you prefer.
Graham cracker crumbs in cups and ounces
| Cups | Ounces | Unrounded |
|---|---|---|
| 1/8 cup | 0.626113 oz | 0.6261128246 |
| 1/4 cup | 1.25223 oz | 1.252225649 |
| 1/3 cup | 1.66963 oz | 1.669634199 |
| 1/2 cup | 2.50445 oz | 2.504451298 |
| 2/3 cup | 3.33927 oz | 3.339268398 |
| 3/4 cup | 3.75668 oz | 3.756676948 |
| 1 cup | 5.0089 oz | 5.008902597 |
| 1 1/2 cup | 7.51335 oz | 7.513353895 |
| 2 cup | 10.0178 oz | 10.01780519 |
| 3 cup | 15.0267 oz | 15.02670779 |
| 4 cup | 20.0356 oz | 20.03561039 |
Based on 142 g per cup of graham cracker crumbs. One cup of graham cracker crumbs is 5.0089026 ounces.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 142 g | 5.01 oz | 236.6 mL |
| 3/4 cup | 106.5 g | 3.76 oz | 177.4 mL |
| 2/3 cup | 94.67 g | 3.34 oz | 157.7 mL |
| 1/2 cup | 71 g | 2.5 oz | 118.3 mL |
| 1/3 cup | 47.33 g | 1.67 oz | 78.86 mL |
| 1/4 cup | 35.5 g | 1.25 oz | 59.15 mL |
| 1 tbsp | 8.875 g | 0.313 oz | 14.79 mL |
| 1 tsp | 2.958 g | 0.104 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) |
|---|---|---|---|
| Bread flour | 127 g | 4.48 oz | 0.5368 |
| Cornstarch | 128 g | 4.515 oz | 0.541 |
| Cornmeal | 138 g | 4.868 oz | 0.5833 |
| Graham cracker crumbs (this page) | 142 g | 5.009 oz | 0.6002 |
| Rice flour | 158 g | 5.573 oz | 0.6678 |
| Potato starch | 160 g | 5.644 oz | 0.6763 |
| Steel-cut oats | 160 g | 5.644 oz | 0.6763 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.