About & sources
What this is
Cups & Quarts is a small, fast tool for everyday cooking and baking math: switching between cups, spoons, grams and ounces, turning a cup of an ingredient into grams, converting oven temperatures and resizing recipes for a different pan. It is free, it has no ads, and it does not need an account.
The only analytics is Cloudflare Web Analytics, which counts page views without cookies and without tracking you across sites.
Where the ingredient weights come from
Ingredient weights are derived from household portion data in USDA FoodData Central (SR Legacy release), published by the U.S. Department of Agriculture, Agricultural Research Service. FoodData Central data is in the public domain under CC0 1.0. Each ingredient below links to the USDA record it came from.
Weights are approximate. The same cup of flour can vary by 20% or more depending on how it is filled, the brand, humidity and how finely something is ground. USDA lists one typical value; your kitchen may differ. For baking where precision matters, weigh your ingredients, and follow the recipe author’s own weights when they give them.
Unit math uses US customary measures: 1 cup = 236.588 mL = 16 tablespoons = 48 teaspoons, 1 fl oz = 29.574 mL, 1 oz = 28.3495 g and 1 lb = 453.592 g.
Ingredient data
| Ingredient | g per cup | FDC ID | USDA portion used |
|---|---|---|---|
| All-purpose flour | 125 | 168936 | 1 cup = 125 g |
| Bread flour | 137 | 168896 | 1 cup = 137 g |
| Cake flour | 137 | 169723 | 1 cup unsifted, dipped = 137 g |
| Whole wheat flour | 120 | 168893 | 1 cup = 120 g |
| Self-rising flour | 125 | 168895 | 1 cup = 125 g |
| Rye flour (medium) | 102 | 168886 | 1 cup = 102 g |
| White rice flour | 158 | 169714 | 1 cup = 158 g |
| Cornstarch | 128 | 169698 | 1 cup = 128 g |
| Cornmeal (yellow, degermed) | 157 | 168867 | 1 cup = 157 g |
| Masa harina | 114 | 169694 | 1 cup = 114 g |
| Granulated sugar | 200 | 169655 | 1 cup = 200 g |
| Brown sugar (packed) | 220 | 168833 | 1 cup packed = 220 g |
| Powdered sugar (unsifted) | 120 | 169656 | 1 cup unsifted = 120 g |
| Turbinado (raw) sugar | 202 | 170674 | 1 cup = 202 g |
| Honey | 339 | 169640 | 1 cup = 339 g |
| Maple syrup | 315 | 169661 | 1 cup = 315 g |
| Molasses | 337 | 168820 | 1 cup = 337 g |
| Light corn syrup | 341 | 168837 | 1 cup = 341 g |
| Butter | 227 | 173430 | 1 cup = 227 g |
| Vegetable shortening | 205 | 171011 | 1 cup = 205 g |
| Coconut oil | 218 | 171412 | 1 cup = 218 g |
| Olive oil | 216 | 171413 | 1 cup = 216 g |
| Vegetable (canola) oil | 218 | 172336 | 1 cup = 218 g |
| Peanut butter (smooth) | 258 | 174266 | 1 cup = 258 g |
| Water | 237 | 173647 | 1 serving 8 fl oz = 237 g |
| Whole milk | 244 | 171265 | 1 cup = 244 g |
| Buttermilk | 245 | 170874 | 1 cup = 245 g |
| Heavy cream | 238 | 170859 | 1 cup, fluid (yields 2 cups whipped) = 238 g |
| Sour cream | 230 | 171257 | 1 cup = 230 g |
| Plain yogurt | 245 | 171284 | 1 cup (8 fl oz) = 245 g |
| Cream cheese | 232 | 173418 | 1 cup = 232 g |
| Sweetened condensed milk | 306 | 171275 | 1 cup = 306 g |
| Eggs (whole, beaten) | 243 | 171287 | 1 cup (4.86 large eggs) = 243 g |
| Vanilla extract | 208 | 173471 | 1 cup = 208 g |
| Parmesan (grated) | 100 | 171247 | 1 cup = 100 g |
| Mozzarella (shredded) | 112 | 170845 | 1 cup, shredded = 112 g |
| Nonfat dry milk powder | 120 | 170877 | 0.25 cup = 30 g |
| White rice (long-grain, uncooked) | 185 | 169756 | 1 cup = 185 g |
| Brown rice (uncooked) | 185 | 169703 | 1 cup = 185 g |
| Rolled oats | 81 | 173904 | 1 cup = 81 g |
| Quinoa (uncooked) | 170 | 168874 | 1 cup = 170 g |
| Couscous (dry) | 173 | 169699 | 1 cup = 173 g |
| Lentils (dry) | 192 | 172420 | 1 cup = 192 g |
| Cocoa powder (unsweetened) | 86 | 169593 | 1 cup = 86 g |
| Table salt | 292 | 173468 | 1 cup = 292 g |
| Baking soda | 220.8 | 175040 | 1 tsp = 4.6 g |
| Baking powder | 220.8 | 172803 | 1 tsp = 4.6 g |
| Ground cinnamon | 124.8 | 171320 | 1 tbsp = 7.8 g |
| Chocolate chips (semisweet) | 168 | 167976 | 1 cup chips (6 oz package) = 168 g |
| Shredded coconut (sweetened) | 93 | 168586 | 1 cup, shredded = 93 g |
| Raisins | 145 | 168165 | 1 cup (not packed) = 145 g |
| Almonds (whole) | 143 | 170567 | 1 cup, whole = 143 g |
| Almonds (sliced) | 92 | 170567 | 1 cup, sliced = 92 g |
| Walnuts (chopped) | 117 | 170187 | 1 cup, chopped = 117 g |
| Pecans (chopped) | 109 | 170182 | 1 cup, chopped = 109 g |
| Peanuts | 146 | 172430 | 1 cup = 146 g |
| Sesame seeds | 144 | 170150 | 1 cup = 144 g |
| Ground flaxseed | 112 | 169414 | 1 tbsp, ground = 7 g |
Where USDA only lists a spoon measure, the per-cup figure is scaled up from it (1 cup = 16 tbsp = 48 tsp).
Feedback
Spotted a number that looks off, or want an ingredient added? Open an issue on GitHub. The site’s code is there too.