To measure 1/3 cup, use 5 tablespoons plus 1 teaspoon, or measure about 80 mL (≈2.7 fl oz).
Stuck with a recipe that calls for one-third cup and your measuring set skips that size? No stress. You can hit the same volume by combining spoons, pouring to a metric mark, or weighing an ingredient when a scale is nearby. Below you’ll find fast spoon math, small-batch conversions, and weight targets for common pantry items so your batter, dough, or sauce lands where it should.
How Do I Measure 1/3 Cup? With Or Without Tools
If you own a liquid cup with milliliter marks, pour to ~80 mL. Working with spoons, count 5 tablespoons plus 1 teaspoon. That combo matches the 80 mL benchmark from the U.S. government’s Metric Kitchen equivalencies (1 tablespoon = 15 mL; 1 teaspoon = 5 mL; 1/3 cup ≈ 80 mL). For small liquid shots, 1/3 cup is about 2 2/3 fluid ounces.
Quick Table: Ways To Measure 1/3 Cup In Any Kitchen
This table sits near the top so you can act fast. Pick the method that matches the tools you have today.
| Method | Exact Measure For 1/3 Cup | Notes |
|---|---|---|
| Measuring Spoons | 5 Tbsp + 1 tsp | 1 Tbsp = 3 tsp, so 5 Tbsp (15 tsp) + 1 tsp = 16 tsp. |
| Milliliters | ~80 mL | From NIST kitchen chart; fast when your cup shows mL marks. |
| Fluid Ounces | ~2 2/3 fl oz | Targets the same volume for liquid mixes and drinks. |
| All-Purpose Flour (by weight) | ~40 g | Based on 120 g per cup from King Arthur’s weight chart. |
| Granulated Sugar (by weight) | ~66 g | Based on 198 g per cup from the same chart. |
| Brown Sugar, Packed (by weight) | ~71 g | Based on 213 g per cup. |
| Water (by weight) | ~76 g | Based on ~227 g per cup measured by standard kitchen charts. |
Why 1/3 Cup Equals 5 Tablespoons Plus 1 Teaspoon
Here’s the spoon math, kept simple. One cup equals 16 tablespoons. One third of a cup equals 16 ÷ 3 tablespoons, which lands on 5 tablespoons and a third of a tablespoon. A third of a tablespoon is 1 teaspoon, since 1 tablespoon equals 3 teaspoons. That’s how you reach 5 tablespoons + 1 teaspoon without owning a 1/3-cup measure.
Metric Pour: Hitting 80 Milliliters Cleanly
Many liquid cups include milliliter lines. Pouring to ~80 mL gives you 1/3 cup. The NIST Metric Kitchen page lists 80 mL as the 1/3-cup mark, with 15 mL for a tablespoon and 5 mL for a teaspoon. That trio makes quick sense checks easy when you scale a recipe.
When Exactness Matters, Weigh It
Volume can shift with packing or scooping. A kitchen scale removes that wobble. King Arthur Baking’s reference lists reliable per-cup weights for common ingredients; just divide by three. A few handy numbers:
- All-purpose flour: 120 g per cup → ~40 g for 1/3 cup.
- Granulated sugar: 198 g per cup → ~66 g for 1/3 cup.
- Brown sugar, packed: 213 g per cup → ~71 g for 1/3 cup.
- Water or thin liquids near water: ~227 g per cup → ~76 g for 1/3 cup.
Those per-cup numbers come from the King Arthur ingredient weight chart, a widely used reference in home and pro kitchens.
Spoon-Only Approach: No Cup, No Scale
Grab a tablespoon and a teaspoon. Count 5 level tablespoons. Add 1 level teaspoon. Leveling matters: skim the top with a flat edge so each spoonful matches the standard volume. For flour, use the spoon-and-level method before you fill the tablespoon. Flour compacts fast, which swings volume up and down. Sugar packs less in a spoon, so it tends to land closer to target even if your leveling is a bit loose.
Liquid Measuring: Clear Sightlines Help
For liquids, pour into a clear measuring cup and crouch so your eyes line up with the mark. Read at the meniscus—the curved surface. Aim for ~80 mL, or the two-thirds line between 2 and 3 fluid ounces. A thin stream during the last few milliliters avoids overshooting.
Dry Measuring: Keep The Scoops Consistent
When you measure dry ingredients by volume, the motion matters. For flour, fluff the container, spoon into the cup or spoon, then level. For sugars, scoop and level; pack only if the recipe says “packed.” For small add-ins—salt, baking powder, spices—use the labeled spoon size and level each one the same way.
Understanding Cup Sizes
Most U.S. recipes point to the same ballpark cup. You may still notice two nearby definitions: a U.S. “customary” cup near 236.6 mL in many references, and a “legal” cup of 240 mL used in nutrition labeling. The difference is small, and the 80 mL mark serves well for 1/3 cup in home cooking. If a recipe prints metric, go with the printed metric value.
Small-Batch Baking: Split Or Multiply 1/3 Cup
Scaling a recipe? The chart below turns 1/3 cup into handy fractions and multiples without grabbing a calculator.
| Portion Of 1/3 Cup | Spoons / Fluid Ounces | Milliliters |
|---|---|---|
| 1/2 of 1/3 cup | 2 Tbsp + 2 tsp (~1.33 fl oz) | ~40 mL |
| 1/3 of 1/3 cup | 1 Tbsp + 2 tsp (~0.89 fl oz) | ~26–27 mL |
| 1/4 of 1/3 cup | 1 Tbsp + 1 tsp (~0.67 fl oz) | ~20 mL |
| 2/3 of 1/3 cup | 3 Tbsp + 2 tsp (~1.78 fl oz) | ~53 mL |
| 1 and 1/3 cups (4 × 1/3) | 21 Tbsp + 4 tsp (~10.7 fl oz) | ~320 mL |
| 2/3 cup (double 1/3) | 10 Tbsp + 2 tsp (~5.3 fl oz) | ~160 mL |
| 3 × 1/3 cup (equals 1 cup) | 16 Tbsp (8 fl oz) | ~240 mL |
Batter, Dough, And Sauces: Where 1/3 Cup Shows Up
You’ll see this size in pancake batters, quick breads, brownie mixes, salad dressings, and pan sauces. For batters and sauces, a liquid cup with mL lines keeps you fast and consistent. For dry ingredients, the spoon-and-level method or a quick weigh-out gives steadier results, batch after batch.
How To Recover From A Measuring Miss
Overshot the mark? For liquids, pour a touch back into the bottle, then recheck the meniscus. For dry ingredients, scrape off the top and re-level. If the bowl already holds too much flour, pinch out a spoon or two before mixing the wet items. If sugar is heavy, subtract a teaspoon and taste the next time; sweetness tends to forgive tiny shifts more than flour does.
Ingredient Weights For 1/3 Cup: A Deeper List
When the goal is steady texture, weight wins. Divide the per-cup weight by three. All values below come from the King Arthur chart linked above:
- Cake flour ~106 g per cup → ~35 g for 1/3 cup.
- Bread flour ~120 g per cup → ~40 g for 1/3 cup.
- Whole wheat flour ~113 g per cup → ~38 g for 1/3 cup.
- Confectioners’ sugar ~113 g per cup → ~38 g for 1/3 cup.
- Turbinado/raw sugar ~180 g per cup → ~60 g for 1/3 cup.
- Honey ~340 g per cup range varies by source; use volume (80 mL) for 1/3 cup if you lack a scale.
- Yogurt ~227 g per cup → ~76 g for 1/3 cup.
If your brand lists a different per-cup weight, follow that label. The goal is to match the standard used by the recipe writer.
Common Pitfalls With 1/3 Cup
- Using a liquid cup for dry flour without leveling. That domed top sneaks in extra grams.
- Packing brown sugar when the recipe doesn’t ask. Packed sugar hits the bowl heavy.
- Reading the meniscus from above. Eye level avoids under- or over-pouring.
- Mixing cup systems. Stick to the same set through a recipe so each fraction tracks cleanly.
Recap You Can Trust During A Bake
how do i measure 1/3 cup? Use 5 tablespoons plus 1 teaspoon, or pour to ~80 mL. When the recipe leans on texture—biscuits, muffins, chewy cookies—switch to weight using the charted numbers above. If you scale a batch, the small-batch table saves time. These moves keep you on target without extra gadgets.
One Last Check Before You Stir
how do i measure 1/3 cup? Confirm the tool path you’ll follow: spoons, metric pour, or weight. Place the needed spoons beside the bowl, set the cup at eye level if you’re pouring, or tare the scale with the mixing bowl. Tiny habits like these keep your steps tidy and your results repeatable.
