How many tablespoons in a cup?

By Paulo de VriesLast verified 2026-05-214 sources~4 min readhigh consensus

1 US cup = 16 tablespoons (tbsp). 1 tbsp = 3 teaspoons (tsp). 1/4 cup = 4 tbsp, 1/2 cup = 8 tbsp, 3/4 cup = 12 tbsp. For metric: 1 cup ≈ 237 mL, 1 tbsp ≈ 14.8 mL.

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The full answer

The core conversion (memorize these — they come up constantly)

1 US cup = 16 tablespoons (tbsp) = 48 teaspoons (tsp) = 8 fluid ounces (fl oz) = 237 milliliters (mL) 1 tbsp = 3 tsp = 0.5 fl oz = 14.79 mL 1 tsp = 1/3 tbsp = 4.93 mL

Cup-to-tablespoon table (use these every day)

Cup fraction	Tablespoons	Teaspoons	Fluid oz
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
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

Why 1/3 and 2/3 are awkward

1/3 cup contains exactly 5.333... tbsp. Cooks round to "5 tbsp + 1 tsp" (which equals 5.333 tbsp, since 1 tsp = 1/3 tbsp). 2/3 cup = 10 tbsp + 2 tsp. This is the cleanest way to measure 1/3 cup without a 1/3-cup measure: 5 tbsp + 1 tsp.

US vs metric vs imperial cup (where conversions get tricky)

Cup type	Volume	Used in
US customary cup	236.59 mL	US recipes (most common in this context)
US legal cup	240 mL (exactly)	US nutrition labels
Metric cup	250 mL	Australia, NZ, parts of UK, Canada
Imperial cup	284 mL	Rare; historical UK

If you're using a US recipe with US cups, the 16-tbsp-per-cup formula holds because both cup and tablespoon are US-defined.

If you're using an Australian or European recipe with a metric 250 mL cup, 1 cup = 16.67 US tbsp (or, more practically, 1 metric cup = 250 mL = 16⅔ US tbsp; round to 17 or use weight measurement).

Quick math for halving/doubling recipes

If a recipe calls for 3/4 cup and you want to halve it: 3/4 ÷ 2 = 3/8 cup. Convert to tbsp: 12 ÷ 2 = 6 tbsp. So halve any cup measurement by halving the tablespoon equivalent — cleaner mental math than fractional cups.

To halve 1/3 cup: 1/3 ÷ 2 = 1/6 cup. Convert: 5 tbsp + 1 tsp ÷ 2 = 2 tbsp + 2 tsp.

Why volume measurement matters less for baking

For baking precision, weigh ingredients in grams — 1 cup of flour can weigh anywhere from 120 g (spooned, sifted) to 180 g (packed). Volume measures introduce 25-50% variance into recipes that demand 5% precision.

For COOKING, volume measures with cups and tbsp are fine — sauces, soups, dressings, marinades tolerate the variance.

Common recipe conversions

"1/4 cup olive oil" → 4 tbsp olive oil (~60 mL)
"1 cup milk" → 16 tbsp or 8 fl oz (~237 mL)
"1/3 cup sugar" → 5 tbsp + 1 tsp sugar (~67 g granulated, ~80 g brown)
"3 tbsp tomato paste" → 3/16 cup = just under 1/4 cup (most cooks just use 3 tbsp directly)

Cross-reference: see /pages/how-to-convert/cups-to-grams for cup-to-weight (depends on ingredient) + /pages/how-to-convert/ml-to-cups for direct volume conversion + /pages/how-to-convert/tablespoons-to-grams for tbsp-to-weight.

Time ranges by condition

Condition	Duration	Note
Quick measurement (no scale)	< 5 seconds	16 tbsp per cup — memorize this
Awkward fraction like 1/3 cup	5 seconds	5 tbsp + 1 tsp = 1/3 cup
Metric recipe (250 mL cup)	10 seconds	250 mL ÷ 14.79 mL/tbsp ≈ 17 tbsp — but better to weigh in grams

What changes the time

Cup standard (US vs metric). US cup = 236.59 mL. Metric cup = 250 mL. Imperial UK cup = 284 mL. Check recipe origin.
Ingredient type. Liquids fill cups uniformly. Flour, sugar, herbs vary by packing — for baking precision, weigh.
Recipe age. Older US recipes (pre-1960) may use slightly different cup standards; rare but worth knowing.
Measuring spoon set quality. Cheap measuring spoons can be off by 10-15%. Use stainless steel or pyrex-certified.

Common questions

Is 1 stick of butter the same as 1/2 cup?

Yes — in the US, 1 stick of butter = 1/2 cup = 8 tbsp = 4 oz = 113 g. This is the US standard butter-stick size. European butter is sold in different blocks (250 g blocks ≈ 17.6 tbsp). When a US recipe says "1 stick butter," use 8 tbsp. The wrapper is usually marked with tbsp/cup conversions for easy slicing.

How do I measure 1/8 cup without a 1/8 cup measure?

1/8 cup = 2 tablespoons. Use a tablespoon measure twice, or eyeball with the 1/4 cup measure half-full. For dry ingredients, the 2-tbsp version is more accurate. For liquids, either method works; you can also use a liquid measuring cup with ounce markings (1/8 cup = 1 fl oz).

My recipe says "3 tablespoons" but I only have a 1/4 cup measure. Help?

3 tbsp = 3/16 cup, which is just below 1/4 cup. Fill the 1/4 cup measure to about three-quarters full — that's approximately 3 tbsp. Better: use a regular tablespoon (not the rounded soup spoon — the flat measuring spoon) three times. For dry ingredients, level each tablespoon with a straight edge to avoid over-measuring.

Sources

We cite primary research, expert practice, and authoritative reference. Higher-tier sources weighted heavier. See methodology.

Tier 1 · peer-reviewed / governmentalTier 2 · editorial referenceTier 3 · named practitioner

T1NIST — US legal cup definition (240 mL) — Authoritative US measurement standards
T1USDA FoodData Central — measurement conversion table — Standard cooking unit conversions
T2King Arthur Baking — measurement basics — Practical kitchen conversion guide
T2America's Test Kitchen, "The Science of Good Cooking" — Why volume measurement varies + when to weigh

Verify this answerEvery number, range, and recommendation on this page traces to a cited source listed above. Click any source to read the original. See how we verify for the full source-tier discipline, or browse the citation graph to see every source we cite across 188 answers.

What could change this answer

honest uncertainty

We don’t know your specific equipment, ingredient batch, or environment. This answer is the best directional estimate from cited sources. Here’s where it’s less certain:

4 factors shift the answer. Your specific cup standard (us vs metric), ingredient type, recipe age (and more) can move this estimate in either direction. The table below shows the documented ranges.
Range spans 3 documented conditions. Pick the row that matches your scenario; halfway between two rows is your best estimate. The widest condition you can imagine is the safer upper bound.
Treat as a directional starting point. Real-world equipment, ingredient batch, and ambient conditions cause natural variance the table cannot capture. Use sensory checks (sight, smell, touch, internal temperature when relevant) alongside this answer — not instead of it.
Backed by 4 cited sources — verify if precision matters. See the Sources section for primary references. Cross-check the cited materials when stakes are high: commercial production, food safety, allergens, dietary or medical considerations.
Verified today. If you found a better-sourced answer or our answer no longer matches reality, tell us — corrections are public and dated. The page exists to be accurate, not to be unchanged.

Cite this page

de Vries, P. (2026). How many tablespoons in a cup?. AskedWell. Retrieved 2026-05-21, from https://askedwell.com/pages/how-to-convert/tablespoons-to-cups

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Last verified: 2026-05-21 · Published 2026-05-21

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