⅓ Cup to Grams
What a third of a cup weighs, for every common baking ingredient
⅓ cup is 41.7 g of all-purpose flour, 66.7 g of granulated sugar, or 75.7 g of butter, using a US cup.
⅓ cup of flour and ⅓ cup of honey are the same amount of space and nowhere near the same weight. That is why "⅓ cup in grams" has no single answer — it needs the ingredient.
It also depends on whose cup the recipe means. A US cup is 236.6 ml; the metric cup used in the UK, Australia, New Zealand and Canada is 250 ml, so it holds about 5.7% more. Both columns are given below.
⅓ cup in grams by ingredient
| Ingredient | Grams per US cup | US cup | Metric cup | Ounces |
|---|---|---|---|---|
| All-Purpose Flour | 125 g | 41.7 g | 44 g | 1.47 oz |
| Bread Flour | 130 g | 43.3 g | 45.8 g | 1.53 oz |
| Cake Flour | 100 g | 33.3 g | 35.2 g | 1.18 oz |
| Whole Wheat Flour | 120 g | 40 g | 42.3 g | 1.41 oz |
| Almond Flour | 96 g | 32 g | 33.8 g | 1.13 oz |
| White Granulated Sugar | 200 g | 66.7 g | 70.4 g | 2.35 oz |
| Brown Sugar (packed) | 220 g | 73.3 g | 77.5 g | 2.59 oz |
| Powdered Sugar (icing sugar) | 120 g | 40 g | 42.3 g | 1.41 oz |
| Caster Sugar (superfine) | 225 g | 75 g | 79.3 g | 2.65 oz |
| Butter (unsalted) | 227 g | 75.7 g | 80 g | 2.67 oz |
| Vegetable Oil | 224 g | 74.7 g | 78.9 g | 2.63 oz |
| Olive Oil | 216 g | 72 g | 76.1 g | 2.54 oz |
| Water | 237 g | 79 g | 83.5 g | 2.79 oz |
| Milk (whole) | 244 g | 81.3 g | 85.9 g | 2.87 oz |
| Heavy Cream | 238 g | 79.3 g | 83.8 g | 2.80 oz |
| Honey | 340 g | 113 g | 120 g | 4.00 oz |
| Maple Syrup | 322 g | 107 g | 113 g | 3.79 oz |
| Cocoa Powder (unsweetened) | 85 g | 28.3 g | 29.9 g | 1.00 oz |
| Chocolate Chips | 170 g | 56.7 g | 59.9 g | 2.00 oz |
| Rolled Oats (old fashioned) | 90 g | 30 g | 31.7 g | 1.06 oz |
| White Rice (uncooked) | 185 g | 61.7 g | 65.2 g | 2.18 oz |
| Breadcrumbs (dry) | 108 g | 36 g | 38 g | 1.27 oz |
| Peanut Butter (smooth) | 258 g | 86 g | 90.9 g | 3.03 oz |
| Cream Cheese | 232 g | 77.3 g | 81.7 g | 2.73 oz |
- ⅓ cup of all-purpose flour weighs 41.7 g in a US cup (44 g in a metric cup).
- ⅓ cup of bread flour weighs 43.3 g in a US cup (45.8 g in a metric cup).
- ⅓ cup of cake flour weighs 33.3 g in a US cup (35.2 g in a metric cup).
- ⅓ cup of whole wheat flour weighs 40 g in a US cup (42.3 g in a metric cup).
- ⅓ cup of almond flour weighs 32 g in a US cup (33.8 g in a metric cup).
- ⅓ cup of white granulated sugar weighs 66.7 g in a US cup (70.4 g in a metric cup).
- ⅓ cup of brown sugar (packed) weighs 73.3 g in a US cup (77.5 g in a metric cup).
- ⅓ cup of powdered sugar (icing sugar) weighs 40 g in a US cup (42.3 g in a metric cup).
⅓ cup in other volume units
| Unit | Amount |
|---|---|
| Cups | ⅓ cup |
| Tablespoons | 5.33 tbsp |
| Teaspoons | 16 tsp |
| Fluid ounces | 2.67 fl oz |
| Millilitres (US cup) | 79 ml |
| Millilitres (metric cup) | 83 ml |
Why the same cup weighs different amounts
A cup is a fixed amount of space. What that space weighs depends on how densely the ingredient packs into it. Cake flour is 100 g per US cup, granulated sugar 200 g, honey 340 g — so ⅓ cup of cake flour weighs 33.3 g while the same ⅓ cup of honey weighs 113 g.
Frequently asked questions
How many grams is ⅓ cup of flour?
⅓ cup of all-purpose flour weighs about 41.7 grams, based on 125 g per US cup spooned and levelled. In a 250 ml metric cup it is about 44 g.
How many grams is ⅓ cup of sugar?
⅓ cup of granulated white sugar weighs about 66.7 grams, based on 200 g per US cup.
How many grams is ⅓ cup of butter?
⅓ cup of butter weighs about 75.7 grams, which is 0.667 US sticks.
How many tablespoons is ⅓ cup?
⅓ cup is 5.33 tablespoons, or 16 teaspoons. That holds for any ingredient, because it is a volume-to-volume conversion.
How many millilitres is ⅓ cup?
⅓ cup is 79 ml using a US cup, or 83 ml using a metric cup. For water, and only water, that is also about 79 g.
Does a third of a cup mean the same thing in a British recipe?
Not quite. A US cup is 236.6 ml; British, Australian, New Zealand and Canadian recipes normally mean a 250 ml metric cup, about 5.7% larger. ⅓ cup of flour is 41.7 g American but 44 g metric.