{
  "name": "CupUnit",
  "url": "https://cupunit.com/",
  "summary": "https://cupunit.com/llms.txt",
  "dataset_version": "2.2.0",
  "last_reviewed": "2026-08-15",
  "notes": [
    "Weights are grams per one cup of the given standard, rounded to whole grams; density_g_per_ml is the exact value they derive from.",
    "Cup-to-gram conversions are estimates: ingredient weight varies with measuring method, packing and brand."
  ],
  "cup_standards_ml": {
    "us": 240,
    "us-customary": 236.5882365,
    "metric": 250,
    "imperial": 284.130625
  },
  "sources": [
    {
      "id": "king-arthur",
      "title": "Ingredient Weight Chart",
      "publisher": "King Arthur Baking Company",
      "url": "https://www.kingarthurbaking.com/learn/ingredient-weight-chart",
      "accessed": "2026-08-15"
    },
    {
      "id": "usda-fdc",
      "title": "FoodData Central",
      "publisher": "U.S. Department of Agriculture (USDA)",
      "url": "https://fdc.nal.usda.gov/",
      "accessed": "2026-08-15"
    },
    {
      "id": "nist",
      "title": "Measurement & unit-conversion references",
      "publisher": "National Institute of Standards and Technology (NIST)",
      "url": "https://www.nist.gov/",
      "accessed": "2026-07-19"
    }
  ],
  "ingredients": [
    {
      "id": "flour",
      "name": "Flour",
      "subtype": "all-purpose flour",
      "measuring_method": "spoon and level",
      "liquid": false,
      "density_g_per_ml": 0.5,
      "grams_per_cup": {
        "us": 120,
        "us-customary": 118,
        "metric": 125,
        "imperial": 142
      },
      "source_ids": [
        "king-arthur",
        "usda-fdc"
      ]
    },
    {
      "id": "milk",
      "name": "Milk",
      "subtype": "whole milk",
      "measuring_method": "liquid measure",
      "liquid": true,
      "density_g_per_ml": 1.0166666666666666,
      "grams_per_cup": {
        "us": 244,
        "us-customary": 241,
        "metric": 254,
        "imperial": 289
      },
      "source_ids": [
        "usda-fdc",
        "nist"
      ]
    },
    {
      "id": "butter",
      "name": "Butter",
      "subtype": "unsalted butter",
      "measuring_method": "solid block",
      "liquid": false,
      "density_g_per_ml": 0.9458333333333333,
      "grams_per_cup": {
        "us": 227,
        "us-customary": 224,
        "metric": 236,
        "imperial": 269
      },
      "source_ids": [
        "king-arthur",
        "usda-fdc"
      ]
    },
    {
      "id": "sugar",
      "name": "Sugar",
      "subtype": "granulated sugar",
      "measuring_method": "spoon and level",
      "liquid": false,
      "density_g_per_ml": 0.8333333333333334,
      "grams_per_cup": {
        "us": 200,
        "us-customary": 197,
        "metric": 208,
        "imperial": 237
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "brown-sugar",
      "name": "Brown sugar",
      "subtype": "brown sugar, packed",
      "measuring_method": "packed",
      "liquid": false,
      "density_g_per_ml": 0.9166666666666666,
      "grams_per_cup": {
        "us": 220,
        "us-customary": 217,
        "metric": 229,
        "imperial": 260
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "icing-sugar",
      "name": "Icing sugar",
      "subtype": "icing sugar (unsifted)",
      "measuring_method": "spoon and level",
      "liquid": false,
      "density_g_per_ml": 0.5,
      "grams_per_cup": {
        "us": 120,
        "us-customary": 118,
        "metric": 125,
        "imperial": 142
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "honey",
      "name": "Honey",
      "subtype": "honey",
      "measuring_method": "liquid measure",
      "liquid": true,
      "density_g_per_ml": 1.4125,
      "grams_per_cup": {
        "us": 339,
        "us-customary": 334,
        "metric": 353,
        "imperial": 401
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "oats",
      "name": "Oats",
      "subtype": "rolled oats",
      "measuring_method": "scooped",
      "liquid": false,
      "density_g_per_ml": 0.37083333333333335,
      "grams_per_cup": {
        "us": 89,
        "us-customary": 88,
        "metric": 93,
        "imperial": 105
      },
      "source_ids": [
        "king-arthur",
        "usda-fdc"
      ]
    },
    {
      "id": "cocoa",
      "name": "Cocoa",
      "subtype": "cocoa powder",
      "measuring_method": "spoon and level",
      "liquid": false,
      "density_g_per_ml": 0.35833333333333334,
      "grams_per_cup": {
        "us": 86,
        "us-customary": 85,
        "metric": 90,
        "imperial": 102
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "rice",
      "name": "Rice",
      "subtype": "white rice, uncooked",
      "measuring_method": "scooped",
      "liquid": false,
      "density_g_per_ml": 0.7708333333333334,
      "grams_per_cup": {
        "us": 185,
        "us-customary": 182,
        "metric": 193,
        "imperial": 219
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "water",
      "name": "Water",
      "subtype": "water",
      "measuring_method": "liquid measure",
      "liquid": true,
      "density_g_per_ml": 1,
      "grams_per_cup": {
        "us": 240,
        "us-customary": 237,
        "metric": 250,
        "imperial": 284
      },
      "source_ids": [
        "nist",
        "usda-fdc"
      ]
    },
    {
      "id": "whole-wheat-flour",
      "name": "Whole-wheat flour",
      "subtype": "whole-wheat flour",
      "measuring_method": "spoon and level",
      "liquid": false,
      "density_g_per_ml": 0.4708333333333333,
      "grams_per_cup": {
        "us": 113,
        "us-customary": 111,
        "metric": 118,
        "imperial": 134
      },
      "source_ids": [
        "king-arthur",
        "usda-fdc"
      ]
    },
    {
      "id": "bread-flour",
      "name": "Bread flour",
      "subtype": "bread flour",
      "measuring_method": "spoon and level",
      "liquid": false,
      "density_g_per_ml": 0.5,
      "grams_per_cup": {
        "us": 120,
        "us-customary": 118,
        "metric": 125,
        "imperial": 142
      },
      "source_ids": [
        "king-arthur",
        "usda-fdc"
      ]
    },
    {
      "id": "almond-flour",
      "name": "Almond flour",
      "subtype": "blanched almond flour",
      "measuring_method": "spoon and level",
      "liquid": false,
      "density_g_per_ml": 0.4,
      "grams_per_cup": {
        "us": 96,
        "us-customary": 95,
        "metric": 100,
        "imperial": 114
      },
      "source_ids": [
        "king-arthur",
        "usda-fdc"
      ]
    },
    {
      "id": "cornstarch",
      "name": "Cornstarch",
      "subtype": "cornstarch (cornflour)",
      "measuring_method": "spoon and level",
      "liquid": false,
      "density_g_per_ml": 0.4666666666666667,
      "grams_per_cup": {
        "us": 112,
        "us-customary": 110,
        "metric": 117,
        "imperial": 133
      },
      "source_ids": [
        "king-arthur",
        "usda-fdc"
      ]
    },
    {
      "id": "cornmeal",
      "name": "Cornmeal",
      "subtype": "whole-grain yellow cornmeal",
      "measuring_method": "spoon and level",
      "liquid": false,
      "density_g_per_ml": 0.575,
      "grams_per_cup": {
        "us": 138,
        "us-customary": 136,
        "metric": 144,
        "imperial": 163
      },
      "source_ids": [
        "king-arthur",
        "usda-fdc"
      ]
    },
    {
      "id": "maple-syrup",
      "name": "Maple syrup",
      "subtype": "pure maple syrup",
      "measuring_method": "liquid measure",
      "liquid": true,
      "density_g_per_ml": 1.3125,
      "grams_per_cup": {
        "us": 315,
        "us-customary": 311,
        "metric": 328,
        "imperial": 373
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "vegetable-oil",
      "name": "Vegetable oil",
      "subtype": "vegetable (canola) oil",
      "measuring_method": "liquid measure",
      "liquid": true,
      "density_g_per_ml": 0.9083333333333333,
      "grams_per_cup": {
        "us": 218,
        "us-customary": 215,
        "metric": 227,
        "imperial": 258
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "olive-oil",
      "name": "Olive oil",
      "subtype": "olive oil",
      "measuring_method": "liquid measure",
      "liquid": true,
      "density_g_per_ml": 0.9,
      "grams_per_cup": {
        "us": 216,
        "us-customary": 213,
        "metric": 225,
        "imperial": 256
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "peanut-butter",
      "name": "Peanut butter",
      "subtype": "smooth peanut butter",
      "measuring_method": "packed",
      "liquid": false,
      "density_g_per_ml": 1.075,
      "grams_per_cup": {
        "us": 258,
        "us-customary": 254,
        "metric": 269,
        "imperial": 305
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "yogurt",
      "name": "Yogurt",
      "subtype": "plain whole-milk yogurt",
      "measuring_method": "scooped",
      "liquid": false,
      "density_g_per_ml": 1.0208333333333333,
      "grams_per_cup": {
        "us": 245,
        "us-customary": 242,
        "metric": 255,
        "imperial": 290
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "heavy-cream",
      "name": "Heavy cream",
      "subtype": "heavy whipping cream",
      "measuring_method": "liquid measure",
      "liquid": true,
      "density_g_per_ml": 0.9916666666666667,
      "grams_per_cup": {
        "us": 238,
        "us-customary": 235,
        "metric": 248,
        "imperial": 282
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "sour-cream",
      "name": "Sour cream",
      "subtype": "sour cream, full fat",
      "measuring_method": "scooped",
      "liquid": false,
      "density_g_per_ml": 0.9583333333333334,
      "grams_per_cup": {
        "us": 230,
        "us-customary": 227,
        "metric": 240,
        "imperial": 272
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "cream-cheese",
      "name": "Cream cheese",
      "subtype": "cream cheese, brick",
      "measuring_method": "solid block",
      "liquid": false,
      "density_g_per_ml": 0.9666666666666667,
      "grams_per_cup": {
        "us": 232,
        "us-customary": 229,
        "metric": 242,
        "imperial": 275
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "chocolate-chips",
      "name": "Chocolate chips",
      "subtype": "semisweet chocolate chips",
      "measuring_method": "scooped",
      "liquid": false,
      "density_g_per_ml": 0.7,
      "grams_per_cup": {
        "us": 168,
        "us-customary": 166,
        "metric": 175,
        "imperial": 199
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    },
    {
      "id": "walnuts",
      "name": "Walnuts",
      "subtype": "walnuts, chopped",
      "measuring_method": "scooped",
      "liquid": false,
      "density_g_per_ml": 0.4875,
      "grams_per_cup": {
        "us": 117,
        "us-customary": 115,
        "metric": 122,
        "imperial": 139
      },
      "source_ids": [
        "usda-fdc",
        "king-arthur"
      ]
    }
  ]
}