Tablespoons to Cups Converter
Quickly convert tablespoons to cups for any recipe. The key ratio is simple: 16 tablespoons equal 1 cup. Whether you're scaling a recipe up or down, this converter handles the math so you can focus on cooking.
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The reason this converter gets more traffic than we expected is that the tablespoon-to-cup ratio is one of those numbers people look up, use once, and immediately forget — even cooks who have been in the kitchen for decades. NIST's Handbook 44, last revised in November 2023, defines the US tablespoon at precisely 14.786 millilitres and the US cup at 236.588 millilitres — divide one by the other and you get exactly 16.000, no rounding involved. The sequence worth memorizing is 4-8-12-16: four tablespoons make a quarter cup, eight make half a cup, twelve make three-quarters, and sixteen make one full cup. Unlike cups-to-grams, where density changes the answer for every ingredient, this conversion is pure volume-to-volume and never varies — a tablespoon of honey converts to cups the same way a tablespoon of flour does, which makes it one of the only kitchen ratios you can trust without thinking about what you are measuring.
The fractions every cook eventually needs from this conversion: 4 tablespoons equals a quarter cup, 5 and a third tablespoons makes a third of a cup, 8 tablespoons is half a cup, and 12 tablespoons gives you three-quarters. Unlike most kitchen conversions where density introduces error — a cup of flour is 120 grams but a cup of sugar is 200 — tablespoons to cups is pure volume-to-volume and mathematically error-free assuming your measuring spoons match NIST's 14.786 ml standard. The 4-8-12-16 sequence printed inside most measuring cup sets is worth taping to your cabinet door if you scale recipes regularly, because this is one of those numbers the brain refuses to retain no matter how many times you look it up — and the fact that it never changes by ingredient makes it the most reliable ratio in your entire kitchen.
Tablespoons to Cups — Quick Reference Chart
| Tablespoons | Cups | Common Use |
|---|---|---|
| 1 tbsp | 0.0625 cups (1/16) | Single serving of butter |
| 2 tbsp | 0.125 cups (⅛) | Salad dressing portion |
| 4 tbsp | 0.25 cups (¼) | Quarter cup in recipes |
| 5 tbsp + 1 tsp | 0.333 cups (⅓) | One-third cup equivalent |
| 8 tbsp | 0.5 cups (½) | Half cup in recipes |
| 10 tbsp + 2 tsp | 0.667 cups (⅔) | Two-thirds cup equivalent |
| 12 tbsp | 0.75 cups (¾) | Three-quarter cup |
| 16 tbsp | 1 cup | Full cup |
| 32 tbsp | 2 cups | One pint |
| 48 tbsp | 3 cups | Common mixing bowl amount |
Frequently Asked Questions
How many tablespoons are in a cup?
There are exactly 16 tablespoons in 1 US cup. This is a fixed ratio that applies to all ingredients, since both are volume measurements.
How many tablespoons in half a cup?
Half a cup equals 8 tablespoons. This is one of the most common conversions in cooking and baking.
How many tablespoons in ¼ cup?
A quarter cup equals 4 tablespoons. This is useful when you have a tablespoon but no quarter-cup measure.
Is a tablespoon the same size everywhere?
Not exactly. A US tablespoon is 14.79 ml, while an Australian tablespoon is 20 ml. This converter uses the US tablespoon (14.79 ml).
How do I convert tablespoons to cups for sticky ingredients?
The conversion ratio (16 tbsp = 1 cup) stays the same regardless of the ingredient. For sticky items like honey or peanut butter, lightly oil your measuring spoon for easier release.