How Many Tablespoons Are in a Cup?

4 min read•March 1, 2024•Reviewed: June 1, 2026

✓Reviewed by Apex Conversion Editorial Team · Last reviewed June 1, 2026

There are exactly 16 tablespoons in one US cup. This relationship is part of the US customary volume hierarchy and is one of the most useful kitchen conversions to memorize — it lets you scale recipes up or down and substitute measuring tools without reaching for a calculator.

Below you will find the complete tablespoon-to-cup chart for common fractional cup measures, the math behind the conversion, and answers to the questions that come up most often when adapting recipes.

The Core Formula

1 cup    = 16 tablespoons  (tbsp)
1 cup    = 48 teaspoons    (tsp)
1 tbsp   = 3 teaspoons

Fractional cups:
  ¼ cup  = 4 tbsp  = 12 tsp
  ⅓ cup  = 5 tbsp + 1 tsp  (5.33 tbsp)
  ½ cup  = 8 tbsp  = 24 tsp
  ⅔ cup  = 10 tbsp + 2 tsp (10.67 tbsp)
  ¾ cup  = 12 tbsp = 36 tsp

Why 16 Tablespoons?

The US cup is defined as 8 fluid ounces. One fluid ounce contains 2 tablespoons. So 8 fl oz × 2 tbsp/fl oz = 16 tablespoons per cup. The same logic gives you 48 teaspoons per cup (16 × 3, since 1 tbsp = 3 tsp).

The consistent factors of 2 and 3 running through this system make it easy to halve or double recipes mentally. When a recipe calls for ½ cup, you need 8 tablespoons. Need to triple ¼ cup? That is 3 × 4 = 12 tablespoons, or exactly ¾ cup.

Practical Kitchen Uses

Knowing the tablespoon-to-cup relationship is most useful when you only have tablespoon measures and need to fill a cup-sized amount. Instead of measuring 16 individual tablespoons, count out a few groups: 4 tbsp = ¼ cup, so four groups of 4 = 1 full cup. Alternatively, measure ½ cup (8 tbsp) twice.

The ⅓ cup conversion is the trickiest: 5 tablespoons plus 1 teaspoon. Most recipes that call for ⅓ cup are somewhat tolerant of this imprecision — for baking, a small kitchen scale (measuring in grams or ounces) removes this guesswork entirely.

Quick Tips

✓
Keep a sticky note on the inside of a kitchen cabinet with: 1 cup = 16 tbsp = 48 tsp. You will reach for it more often than you think.
✓
For sticky ingredients like honey or peanut butter, lightly coat your tablespoon with cooking spray before measuring — the ingredient slides right out.
✓
¼ cup = 4 tbsp is the most useful sub-conversion. Most small recipe amounts (dressings, sauces) land on ¼ cup increments.
✓
If your tablespoon measure is missing, use 3 teaspoons to equal 1 tablespoon.

Frequently Asked Questions

How many tablespoons is ¾ cup?

¾ cup equals exactly 12 tablespoons. The calculation: ¾ × 16 = 12. Alternatively: ½ cup (8 tbsp) + ¼ cup (4 tbsp) = ¾ cup (12 tbsp).

How many tablespoons is ⅓ cup?

⅓ cup equals 5 tablespoons plus 1 teaspoon (5⅓ tablespoons in total). Because ⅓ does not divide evenly into tablespoons, you need to add the extra teaspoon. Precise bakers often use a kitchen scale for recipes calling for ⅓ cup of a dry ingredient.

Is an Australian tablespoon the same as a US tablespoon?

No. A US tablespoon is approximately 14.79 mL. An Australian tablespoon is 20 mL — about 35% larger. If following an Australian recipe, 1 Australian tablespoon ≈ 1⅓ US tablespoons. This difference can noticeably affect baking results.