1/3 Cup in Grams
1/3 cup is 40 g of all-purpose flour, 66 g of granulated sugar and 75 g of butter. Every ingredient weighs differently.
A cup measures volume and grams measure weight, so the weight of 1/3 cup changes with the ingredient. Choose yours in the converter or find it in the table below.
- 1/3 cup flour
- 40 g
- 1/3 cup sugar
- 66 g
- 1/3 cup butter
- 75 g
- 1/3 cup honey
- 112 g
How to convert 1/3 cup to grams
Multiply the cups by the weight of one cup of your ingredient.
- 1Pick your ingredient
Look up its weight per cup in the table below or in the converter.
- 2Multiply 1/3 by that weight
Grams = 1/3 × grams per cup.
- 3Round if you like
Whole grams are accurate enough for most recipes.
Worked example
1/3 cup in grams for 51 ingredients
Find your ingredient to see the weight of 1/3 cup in grams and ounces.
Weight source: King Arthur Baking ingredient weight chart, checked 31 Oct 2026. Weights are averages and shift a little with brand, humidity and how the cup is filled, so weigh your ingredients when accuracy matters. How we measure
Facts and tips for converting 1/3 cup to grams
Key figures
- 1/3 cup in tablespoons
- 5.33 tbsp
- 1/3 cup in teaspoons
- 16 tsp
- 1/3 cup in millilitres
- 79 ml
- 1/3 cup in fluid ounces
- 2.67 fl oz
Measuring tips
- Weigh in grams on a kitchen scale for the most accurate result, and set the scale to zero (tare) with the bowl on it.
- This site uses the US cup of 236.6 ml. A metric cup is 250 ml, so recipes from the UK, Australia or New Zealand can differ.
- Check whether the recipe means the ingredient sifted, packed, melted or cooked, because that changes the weight per cup.
Frequently Asked Questions (FAQs)
Quick answers: 1/3 cup in grams
How many grams is 1/3 cup of flour?
1/3 cup of all-purpose flour is about 40 g, using 120 g per cup.
How many grams is 1/3 cup of sugar?
1/3 cup of granulated sugar is about 66 g, using 198 g per cup.
How many grams is 1/3 cup of butter?
1/3 cup of butter is about 75 g, using 226 g per cup.