Convert 40 tsp to cup
40 teaspoons = 0.83333333 US cups
Sumwise · Maintained by Theo Abbott (pen name) · automated checks · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How the checks work
How to convert teaspoons to US cups
- Formula:
US cups = teaspoons × 0.02083333 - Put in the value: 40 teaspoons.
- Result: 0.83333333 US cups.
Teaspoons to US cups table
| teaspoons | US cups |
|---|---|
| 1 tsp | 0.02083333 cup |
| 2 tsp | 0.04166667 cup |
| 5 tsp | 0.10416667 cup |
| 10 tsp | 0.20833333 cup |
| 20 tsp | 0.41666667 cup |
| 40 tsp | 0.83333333 cup |
| 50 tsp | 1.041667 cup |
| 100 tsp | 2.083333 cup |
| 500 tsp | 10.416667 cup |
| 1,000 tsp | 20.833333 cup |
Converting the other way: US cups to teaspoons
teaspoons = US cups × 48. So 0.83333333 US cups is back to 40 teaspoons; one US cup is 48 teaspoons. See the US cups to teaspoons table.
Quick estimate in your head
For a rough answer, multiply by about 0.02: 40 × 0.02 ≈ 0.8 cup, against the exact 0.83333333 cup (4.0% out). Good enough to check that a calculated result is sensible.
Common mistakes
The usual slip is using the factor the wrong way round. A teaspoon is smaller than a US cup, so the number of US cups must come out smaller than the number of teaspoons. If your answer goes the other way, divide instead of multiplying.
About the units
Teaspoon (tsp) and US cup (cup) are both units of volume. One teaspoon equals 0.02083333 US cups, and one US cup equals 48 teaspoons. Results on this page are rounded for display; the conversion itself uses the exact definitions.
Volume conversions come up in recipes, fuel economy, drink and bottle sizes, garden and pool water, and engine sizes.
40 teaspoons in other units
The most readable unit for this amount is US fluid ounces (6.666667).
- 197.156864 ml
- 0.19715686 l
- 0.00019716 m3
- 13.333333 tbsp
- 6.666667 floz
- 0.83333333 cup
- 0.41666667 pt
- 0.20833333 qt
- 0.05208333 gal
- 0.04336845 impgal
How answers are calculated and checked: methodology.
Questions
How many US cups are in 40 teaspoons?
0.83333333 US cups.
What is the formula to convert teaspoons to US cups?
US cups = teaspoons × 0.02083333
How many US cups are in one teaspoon?
One teaspoon is 0.02083333 US cups, so multiply any number of teaspoons by 0.02083333.
Is 40 tsp more than 40 cup?
No. 40 teaspoons is 0.83333333 US cups, which is less than 40 US cups.
How do I convert teaspoons to US cups in a spreadsheet?
Put the number of teaspoons in A1 and type =A1*0.02083333 in the next cell. Fill the formula down to convert a whole column.