40 tablespoons to cups
Type a value in either box, and the answer shows it in the other unit as you type.
- Cups (cup)
- 2.5
40 tbsp = 2.5 cups.
Cups (cup): 2.5. 40 tbsp = 2.5 cups.
Cups (cup) by tablespoons (tbsp)
How to calculate
Converts tablespoons (tbsp) to cups (cup) and back, with the exact unit definitions.
Example with the default inputs (Tablespoons (tbsp) 40): 40 tbsp = 2.5 cups.
Formula: cup = tbsp × 0.0625 (the same as tbsp ÷ 16)
- 1 tablespoon = 0.0625 cups, from the exact definitions in NIST SP 811.
- Cups, ounces, tablespoons, teaspoons, pints, quarts, and gallons are US customary units: 1 US cup is 8 US fluid ounces.
- Exact on the typed decimals: at most 6 decimal places (6 significant digits below 0.0001), rounded half up; an answer of 1 billion or more shows at most 15 significant digits.
Worked examples
Each example is checked against the calculator on every build.
- Tablespoons (tbsp) 1 gives Cups (cup) 0.0625.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Tablespoons (tbsp) 16 gives Cups (cup) 1.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Cups (cup) 1 gives Tablespoons (tbsp) 16.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
Other questions people ask
What is 40 tablespoons in cups?
40 tbsp is 2.5 cups. The formula is cup = tbsp × 0.0625 (the same as tbsp ÷ 16).
How many cups are in a tablespoon?
1 tablespoon is 0.0625 cups, from the exact unit definitions (NIST SP 811).
How do I convert tablespoons to cups?
Multiply by 0.0625: cup = tbsp × 0.0625 (the same as tbsp ÷ 16). For example, 40 tbsp × 0.0625 = 2.5 cups.
How do I convert cups back to tablespoons?
Multiply by 16, or type the cups into the second box and the converter works it out. 1 cup is 16 tablespoons.