Tablespoons to Cups Conversion
16 US tablespoons = 1 US cup. 1 tablespoon = 14.8 ml.
Conversion Table
| To | From |
|---|---|
| 1/16 cup | 1 tbsp |
| 1/8 cup | 2 tbsp |
| 3/16 cup | 3 tbsp |
| 1/4 cup | 4 tbsp |
| 1/3 cup | 5 tbsp + 1 tsp |
| 3/8 cup | 6 tbsp |
| 1/2 cup | 8 tbsp |
| 2/3 cup | 10 tbsp + 2 tsp |
| 3/4 cup | 12 tbsp |
| 1 cup | 16 tbsp |
16 tablespoons equals 1 cup. Simple math, but the real challenge is remembering it while you're elbow-deep in cookie dough.
This conversion trips up cooks because tablespoon measurements often appear in small quantities (2 tbsp olive oil, 3 tbsp honey) while cups handle larger volumes. When a recipe calls for 10 tablespoons of butter, reaching for the cup measure saves time. Just use 1/2 cup plus 2 tablespoons instead of counting out 10 separate scoops.
The US tablespoon holds 14.8 ml. Three teaspoons make one tablespoon. These ratios stay constant measuring water, oil, or maple syrup. Unlike cups-to-grams conversions that change with each ingredient, volume-to-volume conversions work the same for all liquids and most dry goods.
How to Convert
Divide tablespoons by 16 to get cups. For 8 tablespoons: 8 ÷ 16 = 0.5 cups. For 12 tablespoons: 12 ÷ 16 = 0.75 cups.
Going the other way, multiply cups by 16. For 1/4 cup: 0.25 x 16 = 4 tablespoons. For 3/4 cup: 0.75 x 16 = 12 tablespoons.
The fractions get messy with odd numbers. 5 tablespoons doesn't divide evenly into cups. It equals 5/16 cup, which no measuring cup has marked. Use 1/4 cup (4 tbsp) plus 1 tablespoon instead. Similarly, 1/3 cup equals 5.33 tablespoons. Measure it as 5 tablespoons plus 1 teaspoon.
For recipes that mix tablespoons and cups, convert everything to one unit first. A sauce calling for 1/2 cup cream plus 3 tablespoons butter becomes either 8 tbsp + 3 tbsp = 11 tablespoons total, or 0.5 cups + 0.1875 cups = 0.6875 cups total. Pick whichever unit makes the math cleaner.
Common Mistakes
Using the wrong tablespoon size. Australian tablespoons hold 20 ml (4 teaspoons) while US and UK tablespoons hold 15 ml (3 teaspoons). An Australian recipe's 4 tablespoons equals 5.4 US tablespoons. Check the recipe's origin.
Confusing tablespoon (tbsp, Tbsp, T) with teaspoon (tsp, t) abbreviations. One careless misread turns 1 tbsp salt into 3 tsp salt, tripling the amount. Capital T usually means tablespoon, lowercase t means teaspoon.
Packing dry ingredients into the tablespoon. Level off flour, cocoa powder, and baking soda with a straight edge. A heaped tablespoon of flour contains 50% more than a level one. For brown sugar, recipes specify if they want it packed.
Pro Tips
Buy measuring spoons with both tablespoon and ml markings. When following metric recipes, you can measure 45 ml directly instead of converting to 3 tablespoons.
For sticky ingredients like honey or molasses, spray the tablespoon with cooking spray first. The ingredient slides right out, giving you the full measure. Works for peanut butter too.
Measuring sets often include a 1/8 cup measure, which equals 2 tablespoons. Handy for recipes that call for multiple tablespoons of the same ingredient. Instead of measuring 6 tablespoons of oil one by one, use the 1/8 cup three times.
When scaling recipes up or down, work in tablespoons for accuracy. Doubling 1/3 cup gives you 2/3 cup, but doubling 5 tablespoons plus 1 teaspoon gives you 10 tablespoons plus 2 teaspoons, which converts cleanly to 2/3 cup (10.67 tbsp).
Ingredient-Specific Notes
Butter
1 stick = 8 tablespoons = 1/2 cup. The wrapper has tablespoon markings, making it easy to cut off exactly what you need. Room temperature butter measures more accurately than cold butter, which can leave air gaps in the spoon.
Oil
Vegetable oil, olive oil, and melted coconut oil all measure the same by volume. 1 tablespoon = 14.8 ml = 13.6 grams. Pour to the rim of the spoon for accuracy. Oil's lower surface tension means it won't mound up like water.
Honey and syrups
1 tablespoon honey weighs 21 grams, heavier than the same volume of water (14.8g). Measure these over the mixing bowl so drips don't go to waste. Warming the spoon in hot water helps honey flow better.
Flour
1 level tablespoon all-purpose flour = 7.5 grams. Spoon it in and level off. Never scoop flour directly with the measuring spoon, which packs it down to 10-11 grams per tablespoon.
Vanilla extract
Most recipes call for 1-2 teaspoons, not tablespoons. 1 tablespoon vanilla (3 teaspoons) is quite strong. Double-check the unit when a recipe seems to call for a lot. Premium vanilla costs $30+ per 4-ounce bottle.
Frequently Asked Questions
How many tablespoons in 1/4 cup?
4 tablespoons equal 1/4 cup exactly. This is one of the cleanest conversions because 16 divides evenly by 4. Many cooks memorize this one first since 1/4 cup appears so often in recipes. You can also think of it as 2 tablespoons = 1/8 cup, then double both sides.
How many tablespoons in 1/3 cup?
5 tablespoons plus 1 teaspoon equals 1/3 cup. The math: 1/3 cup = 5.33 tablespoons, and 0.33 tablespoon = 1 teaspoon. Some measuring cup sets include a 1/3 cup measure specifically because this conversion is awkward. If you're scaling a recipe and need 2/3 cup, that's 10 tablespoons plus 2 teaspoons.
Is 2 tablespoons the same as 1 ounce?
Yes, for volume. 2 tablespoons = 1 fluid ounce = 29.6 ml. But weight ounces are different. 2 tablespoons of water weighs 1 ounce (29.6g), while 2 tablespoons of flour weighs only 0.5 ounce (15g). Always check whether a recipe means fluid ounces (volume) or weight ounces.
Why do some recipes use tablespoons instead of cups for liquids?
Precision and convenience. Adding 2 tablespoons of soy sauce is faster than dirtying a 1/8 cup measure. For amounts under 1/4 cup, tablespoons give clearer measurements. Saying "3 tablespoons" is more intuitive than "3/16 cup." Recipe writers choose the unit that makes the most sense for each ingredient's typical usage amount.
What's the difference between a tablespoon and a dessert spoon?
A dessert spoon holds 10 ml, between a teaspoon (5 ml) and tablespoon (15 ml). Common in UK and Commonwealth countries but rare in the US. If a British recipe calls for dessertspoons, multiply by 2 to get the number of teaspoons, or multiply by 0.67 to get tablespoons. A dessertspoon of salt would be 2 teaspoons.