Tablespoon (US) to Cup (US) Converter
Volume · unit-converter
Convert Tablespoon (US) to Cup (US) with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use liter-based factors (US fluid measures, imperial UK units, SI cubic meters).
Calculator
From: Tablespoon (US) (tbsp)
To: Cup (US) (cup)
About Tablespoon (US)
The US tablespoon is 1/2 US fluid ounce (about 14.7868 ml). US recipes use tablespoons for cooking volumes.
About Cup (US)
The US customary cup is 236.588 ml (half a US liquid pint). US baking recipes frequently measure dry and liquid ingredients in cups.
How to convert tablespoons (us) to cups (us)
1 tablespoon (us) is equal to 0.0625 cup (us):
1 tbsp = (0.01478676478125 L ÷ 0.2365882365 L) cup = 0.0625 cup
Each tablespoon (us) is defined as 0.01478676478125 L and each cup (us) as 0.2365882365 L, so one tbsp equals 0.01478676478125 ÷ 0.2365882365 cup = 0.0625 cup.
Let V(tbsp) be the numeric value of the same volume measured in Tablespoon (US) (tbsp), and V(cup) the value in Cup (US) (cup). Then:
V(cup) = V(tbsp) × (0.01478676478125 / 0.2365882365)
Equivalently, divide by how many tbsp fit into one cup (liters per cup divided by liters per tbsp):
V(cup) = V(tbsp) ÷ 16
Or: cup (us) = tablespoon (us) ÷ 16
Examples
Example #1: Convert 20 tbsp to cup (us)
20 tbsp = 20 tbsp × (0.01478676478125/0.2365882365) cup = 1.25 cup
20 tbsp = 20 tbsp ÷ 16 = 1.25 cup
Example #2: Convert 50 tbsp to cup (us)
50 tbsp = 50 tbsp × (0.01478676478125/0.2365882365) cup = 3.125 cup
50 tbsp = 50 tbsp ÷ 16 = 3.125 cup
Summary
To convert Tablespoon (US) to Cup (US), multiply the value in tbsp by the ratio of liters per tbsp divided by liters per cup. Equivalently: value_cup = value_tbsp × (0.01478676478125 / 0.2365882365). Numerically, 1 tbsp equals 0.0625 cup.
Relationship context
Both units are US customary fluid / volume in this tool’s grouping. Conversions use fixed liter equivalents, so factors are consistent for cooking, engineering, and cross-checking labels. The factor from Tablespoon (US) to Cup (US) is 6.250000e-2 (1 tbsp = 0.0625 cup).
Conversion tables
| Tablespoon (US) (tbsp) | Cup (US) (cup) |
|---|---|
| 0.1 | 0.00625 |
| 1 | 0.0625 |
| 2 | 0.125 |
| 3 | 0.1875 |
| 4 | 0.25 |
| 5 | 0.3125 |
| 6 | 0.375 |
| 7 | 0.4375 |
| 8 | 0.5 |
| 9 | 0.5625 |
| Tablespoon (US) (tbsp) | Cup (US) (cup) |
|---|---|
| 10 | 0.625 |
| 20 | 1.25 |
| 30 | 1.875 |
| 40 | 2.5 |
| 50 | 3.125 |
| 60 | 3.75 |
| 70 | 4.375 |
| 80 | 5 |
| 90 | 5.625 |
| 100 | 6.25 |