To convert cups of graham cracker crumbs into grams, multiply by 142: one cup comes to 142 grams. 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. Graham cracker crumbs comes in at 0.6002 g per mL, or 60.02% of water, which is why a cup of it is 142 g rather than 236.6 g. Volume and weight only line up for water, and only in metric.
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.
Grams are the unit this conversion is really for. A domestic scale resolves to a gram, which is 0.704% of a cup of graham cracker crumbs, so weighing gets an accuracy no measuring cup can reach. A 500 g pack of it is 3.521 cups, and a 1 kg pack 7.042.
How the figure is arrived at: 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
142- Grams per cup for graham cracker crumbs, from its density of 0.6002 g/mL
grams- The equivalent quantity in grams
How it works, step by step
- Enter the quantity in cups.
- It is multiplied by 142, the grams-per-cup figure for graham cracker crumbs.
- 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 graham cracker crumbs in grams
1/3 cup of graham cracker crumbs weighs out at 47.3333 grams. Divide 47.3333 by 142 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 graham cracker crumbs in grams
A recipe calling for 3/4 cup of graham cracker crumbs needs 106.5 grams on the scale. The arithmetic is 0.75 × 142 = 106.5, and halving the recipe halves the weight to 53.25 grams.
3 cup of graham cracker crumbs in grams
A recipe calling for 3 cup of graham cracker crumbs needs 426 grams on the scale. The arithmetic is 3 × 142 = 426, and halving the recipe halves the weight to 213 grams.
How to read your score
Frequently asked questions
How many grams are in 1 cup of graham cracker crumbs?
One cup of graham cracker crumbs is 142 grams. Half that quantity is 71 grams and double it is 284 grams, 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 500 g?
500 g of graham cracker crumbs is 3.5211 cups — 0.00704225 cups to one gram, so 500 × 0.00704225 = 3.5211. Going that way is a division by 142, or a multiplication by 0.00704225 if you prefer.
Graham cracker crumbs in cups and grams
| Cups | Grams | Unrounded |
|---|---|---|
| 1/8 cup | 17.75 g | 17.75 |
| 1/4 cup | 35.5 g | 35.5 |
| 1/3 cup | 47.3333 g | 47.33333333 |
| 1/2 cup | 71 g | 71 |
| 2/3 cup | 94.6667 g | 94.66666667 |
| 3/4 cup | 106.5 g | 106.5 |
| 1 cup | 142 g | 142 |
| 1 1/2 cup | 213 g | 213 |
| 2 cup | 284 g | 284 |
| 3 cup | 426 g | 426 |
| 4 cup | 568 g | 568 |
Based on 142 g per cup of graham cracker crumbs. One cup of graham cracker crumbs is 142 grams.
| 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.