What Is Half of Three Quarters Cup? | 6 Tablespoons Exactly

Half of 3/4 cup equals 3/8 cup, which is precisely 6 tablespoons, 18 teaspoons, 3 fluid ounces, or about 90 milliliters in US standard measurements.

A recipe calls for 3/4 cup of something, you need half that amount — maybe you’re scaling down a batch or splitting a batter. The math is straightforward: half of 3/4 cup lands at 3/8 cup, a measurement almost no one has a dedicated tool for. The practical number to remember is 6 tablespoons, which is the same as 1/4 cup plus 2 tablespoons.

The Math Behind the Measurement

Halving a fraction is simple kitchen arithmetic. Multiply the denominator by 2: 1/2 × 3/4 = 3/8. That’s the pure fractional answer.

But 3/8 cup isn’t marked on standard measuring cups. Here’s how that fraction breaks into real kitchen units:

• 6 tablespoons — the most useful equivalent to memorize
• 1/4 cup + 2 tablespoons — combines two common measures
• 18 teaspoons — 1 tablespoon equals 3 teaspoons
• 3 fluid ounces — 3/4 cup is 6 fl oz, so half is 3
• ~90 milliliters — based on the US cup of 240 ml; 3/4 cup = 180 ml, halved = 90 ml

The entire conversion relies on the standard US culinary definition where 1 cup equals 16 tablespoons and 8 fluid ounces.

How To Measure It Without a 3/8 Cup Tool

You almost certainly don’t own a 3/8 cup measure. These three methods work with standard measuring sets found in any US kitchen.

Method A: Tablespoon Count (Most Precise)

Fill a tablespoon measure completely and level it. Repeat 6 times into your bowl. That’s the exact amount — 3/4 cup is 12 tablespoons, so half is 6. No guesswork, no math while you cook.

Method B: Cup Combination

Fill a 1/4 cup measure (that’s 4 tablespoons). Then add 2 tablespoons to it. Together they make exactly 6 tablespoons, or 3/8 cup.

Method C: Subtract From a 1/2 Cup Measure

Fill a 1/2 cup measure (8 tablespoons). Scoop out 2 tablespoons from it, leaving 6 tablespoons in the cup. This works well when your 1/2 cup is already dirty or you’re working over the mixing bowl.

Watch Out For These Common Mistakes

Three errors trip up home cooks more often than they expect:

• 3/8 cup vs. 1/3 cup. 3/8 cup (0.375) is slightly larger than 1/3 cup (0.333). Using 1/3 cup instead of 6 tablespoons leaves you short by about 2 tablespoons, a meaningful gap in most baking recipes.
• Teaspoon math. 6 tablespoons does not equal 12 teaspoons. Each tablespoon holds 3 teaspoons, so the correct count is 18 teaspoons.
• US vs. UK cups. A US cup is 240 ml; a UK imperial cup is about 284 ml. That 44 ml difference per cup means half of 3/4 cup is 90 ml in US measures but about 106.5 ml using a UK cup. If the recipe doesn’t specify, assume US standard for any American cookbook or blog.

When Volume Measurements Aren’t Enough

For most recipes, 6 tablespoons of an ingredient works fine by volume. But for critical baking — yeast breads, delicate cakes, or anything where the ratio of flour to liquid matters — a kitchen scale is more reliable. Flour compresses differently in a measuring cup than sugar or cocoa; the same 6 tablespoons can vary by 20% in actual mass depending on how you scoop. A scale measuring grams eliminates that variability.

Taste of Home’s how-to on cutting down recipes confirms the tablespoon conversions and walks through the math for other common fractions.