Convert volume units — liters, gallons, cups, milliliters, cubic meters, barrels and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 tbsp | 6.25002e-05 cup | |
| 0.01 tbsp | 0.000625002 cup | |
| 0.1 tbsp | 0.00625002 cup | |
| 1 tbsp | 0.0625002 cup | |
| 5 tbsp | 0.312501 cup | |
| 10 tbsp | 0.625002 cup | |
| 50 tbsp | 3.12501 cup | |
| 100 tbsp | 6.25002 cup | |
| 1000 tbsp | 62.5002 cup |
Common tablespoon values converted to us cup — factor: 1 tbsp = 0.0625 cup
| Tablespoon (tbsp) | US Cup (cup) | Context |
|---|---|---|
| 0.25 tbsp | 0.01563 cup | Pinch |
| 0.5 tbsp | 0.03125 cup | Half tablespoon |
| 1 tbsp | 0.0625 cup | Tablespoon |
| 2 tbsp | 0.125 cup | 2 tablespoons |
| 4 tbsp | 0.25 cup | Quarter cup |
| 8 tbsp | 0.5 cup | Half cup |
| 16 tbsp | 1 cup | One cup |
| 32 tbsp | 2 cup | One pint |
| 48 tbsp | 3 cup | One quart |
| 64 tbsp | 4 cup | One quart |
| 128 tbsp | 8 cup | Half gallon |
| 256 tbsp | 16 cup | One gallon |
| 512 tbsp | 32 cup | 2 gallons |
| 1,024 tbsp | 64 cup | 3 gallons |
| 2,048 tbsp | 128 cup | 8 gallons |
Converting tablespoon to us cup comes up frequently in cooking, chemistry, medicine, and engineering. A recipe written in metric units may need to be adapted for a kitchen using us cup, or a laboratory protocol may specify volumes in tablespoon that need to be measured with equipment calibrated in us cup.
In everyday use, knowing that 5 tbsp = 0.3125 cup and 10 tbsp = 0.625 cup covers most common situations. For bulk calculations, 100 tbsp = 6.25 cup is a useful anchor. The reverse conversion — us cup back to tablespoon — uses the factor 16, so 1 cup = 16 tbsp.
All conversions use the internationally recognized factor of exactly 1 tbsp = 0.0625 cup. Calculations are performed in IEEE 754 double-precision floating point, giving accuracy to at least 8 significant figures — more than sufficient for any practical application.
Formula: US Cup = Tablespoon × 0.062500211
Multiply any tablespoon value by 0.062500211 to get us cup. One tablespoon equals 0.062500211 cup.
Reverse: Tablespoon = US Cup × 15.999946
Tablespoons ÷ 16 = cups. Exact.
4 tbsp = ¼ cup. 8 tbsp = ½ cup. 16 tbsp = 1 cup.
Cups × 16 = tbsp.
Measures butter, oil, and liquid sweeteners in tablespoons for precise small-batch baking.
Labels liquid medications in tablespoon doses (1 tbsp = 15 mL) for home administration.
Scales facial mask and scrub recipes using tablespoon proportions.
Measures herbal tinctures and infusions in tablespoons for daily supplement protocols.
Tests sauces and dressings where tablespoon quantities critically affect flavor.
Converts pet supplement doses to tablespoons for clear owner instructions.
The US tablespoon is defined as exactly 3 teaspoons or ½ fluid ounce, approximately 14.787 mL. Standardization arrived in the late 19th century alongside modern recipe writing.
Tablespoons are fundamental to cooking and medicine. The Australian tablespoon is 20 mL, the UK tablespoon is 17.76 mL, and the US tablespoon is 14.79 mL.
Interesting fact: Capital T for tablespoon versus lowercase tsp for teaspoon is a convention designed to prevent dangerous dosing errors in medical and culinary contexts.
The US customary cup is defined as exactly 8 US fluid ounces, or 236.588 mL. It was standardized by Fannie Farmer in her 1896 cookbook The Boston Cooking-School Cook Book.
The cup is the backbone of US baking: nearly every American recipe uses cup measurements for flour, sugar, butter, and liquids. Standard sets include 1 cup, ½ cup, ⅓ cup, and ¼ cup.
Interesting fact: Australia uses a metric cup of 250 mL, slightly larger than the US cup, which can cause recipe confusion in international cooking.