What Is a Third of 1 Cup?
A third of 1 cup is ⅓ cup.
Measure it as: 1/3 cup
How to measure ⅓ cup
- With standard cups & spoons: 1/3 cup
- By volume: 79 ml, or 2.67 fluid ounces — handy if you have a measuring jug.
- By weight (most accurate): see the gram table below for common ingredients.
Here's the math: 1 cup is 16 tablespoons. Take a third of that and you get 5⅓ tablespoons, which is ⅓ cup. Working in spoons instead of cup fractions is the trick professional bakers use to scale recipes without special equipment.
⅓ cup in grams
Volume-to-weight depends on the ingredient — a cup of flour weighs far less than a cup of honey. For ⅓ cup:
| Ingredient | ⅓ cup weighs about |
|---|---|
| All-purpose flour | 40 g |
| Granulated sugar | 67 g |
| Brown sugar (packed) | 73 g |
| Powdered sugar | 40 g |
| Butter | 76 g |
| Milk | 80 g |
| Water | 79 g |
| Vegetable oil | 73 g |
| Honey | 113 g |
Recipe Thirds Chart: nearby amounts
| Original | A third | Measure it as |
|---|---|---|
| ⅔ cup | 2/9 cup | 3 tbsp + 1 tsp + 1/2 tsp + 1/8 tsp |
| ¾ cup | ¼ cup | 1/4 cup |
| ⅞ cup | 7/24 cup | 1/4 cup + 2 tsp |
| 1 cup | ⅓ cup | 1/3 cup |
| 1¼ cups | 5/12 cup | 1/3 cup + 1 tbsp + 1 tsp |
| 1⅓ cups | 4/9 cup | 1/3 cup + 1 tbsp + 2 tsp + 1/4 tsp + 1/8 tsp |
| 1½ cups | ½ cup | 1/2 cup |
See the full recipe thirds chart →
Frequently asked questions
What is a third of 1 cup in milliliters?
A third of 1 cup is about 79 ml (2.67 fl oz).
What's the easiest way to measure ⅓ cup without special cups?
Use standard measures: 1/3 cup. Every part of that comes from a standard measuring cup and spoon set.