How Many Tablespoons in a Cup?
There are exactly 16 tablespoons in one US cup. This guide covers all cup-to-tablespoon fractions, teaspoon equivalents, and metric conversions for cooking and baking.
Last updated: 2025-03-13
The Short Answer
There are exactly 16 tablespoons in 1 US customary cup. This means each tablespoon equals 1/16 of a cup, or 1/2 fluid ounce (approximately 14.79 ml). This relationship is one of the most important measurements to know in the kitchen, especially for baking where precision determines results.
The Complete Measurement Hierarchy
US cooking measurements follow a simple scaling system:
- 1 cup = 16 tablespoons = 48 teaspoons = 8 fluid ounces = 236.6 ml
- 1 tablespoon = 3 teaspoons = 1/2 fluid ounce = 14.79 ml
- 1 teaspoon = 1/3 tablespoon = 1/6 fluid ounce = 4.93 ml
Knowing these relationships lets you substitute any measuring tool for another when you are missing a specific measuring cup or spoon.
Cup Fractions in Tablespoons
| Cup Fraction | Tablespoons | Teaspoons | Fluid Ounces |
|---|---|---|---|
| 1/8 cup | 2 tbsp | 6 tsp | 1 fl oz |
| 1/4 cup | 4 tbsp | 12 tsp | 2 fl oz |
| 1/3 cup | 5 tbsp + 1 tsp | 16 tsp | 2.67 fl oz |
| 3/8 cup | 6 tbsp | 18 tsp | 3 fl oz |
| 1/2 cup | 8 tbsp | 24 tsp | 4 fl oz |
| 2/3 cup | 10 tbsp + 2 tsp | 32 tsp | 5.33 fl oz |
| 3/4 cup | 12 tbsp | 36 tsp | 6 fl oz |
| 1 cup | 16 tbsp | 48 tsp | 8 fl oz |
Notice that 1/3 cup equals 5 tablespoons plus 1 teaspoon (because 16 ÷ 3 = 5.333, and one-third of a tablespoon is 1 teaspoon). This is one of the trickiest conversions to remember.
Worked Examples
Example 1: Converting 3/4 Cup to Tablespoons
- Step 1: Multiply the cup fraction by 16: 3/4 × 16 = 12.
- Result: 3/4 cup = 12 tablespoons.
Example 2: Converting 5 Tablespoons to Cups
- Step 1: Divide tablespoons by 16: 5 ÷ 16 = 0.3125.
- Result: 5 tablespoons = 0.3125 cups, or just under 1/3 cup.
Example 3: How Many Tablespoons in 2/3 Cup?
- Step 1: Multiply: 2/3 × 16 = 10.667.
- Result: 2/3 cup = 10 tablespoons + 2 teaspoons.
Use our cooking converter for any measurement conversion.
Tablespoon Sizes Around the World
The tablespoon size varies by country, which matters when using international recipes:
- US tablespoon: 14.79 ml (1/2 US fluid ounce)
- UK/Canadian tablespoon: 15 ml (commonly rounded to 15 ml in practice)
- Australian tablespoon: 20 ml (significantly larger!)
The Australian tablespoon is a notable exception. If an Australian recipe calls for 2 tablespoons, that is 40 ml, not the 30 ml you would get with US or UK tablespoons. This can make a meaningful difference in baking.
Real-World Applications
Baking Without a Measuring Cup
If you break or lose a measuring cup, tablespoons can substitute. Need 1/4 cup of butter? That is 4 tablespoons, which many butter wrappers conveniently mark. Need 1/2 cup of oil? Count out 8 tablespoons. This flexibility makes tablespoon knowledge invaluable in the kitchen.
Scaling Recipes
When halving a recipe that calls for 1/3 cup, you need 1/6 cup — a measurement that does not exist on any standard measuring cup. But in tablespoons, it is 2 tablespoons plus 2 teaspoons (half of 5 tbsp + 1 tsp). Converting to tablespoons makes odd fractions manageable.
Small Batch Cooking
For small recipes like salad dressings, marinades, or single-serving portions, tablespoons are often more practical than cups. A vinaigrette might call for 3 tablespoons of oil (just under 1/4 cup) and 1 tablespoon of vinegar (1/16 cup). Using tablespoons keeps the proportions clear.
Butter Measurement
In the US, butter is sold in sticks. One stick equals 1/2 cup, 8 tablespoons, or 4 ounces (113 g). Half a stick is 1/4 cup or 4 tablespoons. Most butter wrappers are marked in tablespoon increments, making tablespoon-to-cup knowledge especially useful.
Frequently Asked Questions
How many tablespoons are in a cup?
There are exactly 16 tablespoons in 1 US cup. Each tablespoon is 1/2 fluid ounce or approximately 14.79 ml.
How many tablespoons are in half a cup?
There are 8 tablespoons in half a cup (4 fluid ounces, approximately 118.3 ml).
How many teaspoons are in a tablespoon?
There are 3 teaspoons in 1 tablespoon. This means 1 cup contains 48 teaspoons (16 tablespoons × 3 teaspoons).
How many tablespoons are in 1/3 cup?
There are 5 tablespoons plus 1 teaspoon in 1/3 cup. Since 16 ÷ 3 = 5.333 and 0.333 of a tablespoon equals 1 teaspoon, the practical answer is 5 tbsp + 1 tsp.
Quick Reference Section
- 1 cup = 16 tablespoons = 48 teaspoons = 8 fl oz
- 1 tablespoon = 3 teaspoons = 1/2 fl oz = 14.79 ml
- Tricky conversion: 1/3 cup = 5 tbsp + 1 tsp
- Butter reference: 1 stick = 8 tbsp = 1/2 cup = 4 oz
For any cooking or volume conversion, use our free cooking converter.