120 grams equals exactly 1.0 US cup of all-purpose flour, 0.60 cups of granulated sugar, and 1.0 cup of powdered sugar.
Adjust ingredients below to calculate the exact volume for 120g.
Technique note: Fluff flour with a fork, spoon gently into the cup until heaping, then sweep level with a straight edge. Never scoop directly.
Verified standard: 1 US cup of All-Purpose Flour = 120 grams (King Arthur Baking & USDA FoodData Central (FDC ID: 168936)).
Below is the exact conversion of 120g into US Customary cups and level tablespoons for common baking staples:
| Ingredient | US Cups | Tablespoons | Measuring Notes |
|---|---|---|---|
| All-Purpose Flour | 1.00 cup (Exact 1 cup) | 16.0 tbsp | The King Arthur gold standard |
| Granulated Sugar | 0.60 cup (~2/3 cup minus 1 tbsp) | 9.6 tbsp | Refined sucrose |
| Brown Sugar (Packed) | 0.55 cup (~1/2 cup + 1 tbsp) | 8.7 tbsp | Packed firmly |
| Powdered Sugar | 1.00 cup (Exact 1 cup) | 16.0 tbsp | Sifted confectioners sugar |
| Butter | 0.53 cup (1 stick + 0.5 tbsp) | 8.5 tbsp | Standard US stick + a sliver |
| Cocoa Powder | 1.20 cups (1 1/5 cups) | 19.2 tbsp | Light and airy |
| Rolled Oats | 1.33 cups (1 1/3 cups) | 21.3 tbsp | Old-fashioned oats |
| Chocolate Chips | 0.69 cup (~2/3 cup) | 11.0 tbsp | Semi-sweet chips |
| Honey | 0.35 cup (5.6 tbsp) | 5.6 tbsp | Pure clover honey |
| Whole Milk | 0.49 cup (just under 1/2 cup) | 7.8 tbsp | Liquid dairy |
Why is 120 grams so important? 120 grams is recognized across professional culinary schools (including King Arthur Baking and the French Culinary Institute) as the benchmark weight of 1 US cup of spooned-and-leveled all-purpose flour.
Culinary Tip: For light powders like flour and cocoa, always fluff the ingredient before spooning it into the cup, then scrape the top level with a flat straight edge. For packed ingredients like brown sugar, press firmly with a spoon.
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