Teaspoon to Cup Converter (tsp to cup) + Formula
1 teaspoon equals 0.02083333 cup — multiply teaspoons by 0.02083333 (or divide by 48) to convert. There are exactly 48 US teaspoons in one US cup, which is why each teaspoon is one forty-eighth of a cup. This is a US customary volume conversion used constantly in cooking and baking.
The formula
Multiply teaspoons by the factor to get cups:
cups = teaspoons × 0.02083333For example, 12 tsp × 0.02083333 = 0.25 cup (a quarter cup). To reverse, multiply cups by 48.
Conversion table
| Teaspoons (tsp) | Cups (cup) |
|---|---|
| 1 | 0.02083333 |
| 2 | 0.04166667 |
| 3 | 0.06250000 |
| 5 | 0.10416667 |
| 10 | 0.20833333 |
| 25 | 0.52083333 |
| 50 | 1.04166667 |
| 100 | 2.08333333 |
| 500 | 10.41666667 |
| 1000 | 20.83333333 |
How to convert online
- Type the number of teaspoons into the first box.
- Read the equivalent cup value instantly in the second box.
- Type a cup value to convert back to teaspoons — it works both ways.
Use the Teaspoon to Cup Converter — free and instant in your browser.
Where this conversion is used
Recipes often list small quantities in teaspoons, but scaling a recipe up or measuring bulk ingredients is far easier in cups. Cooks, bakers, and anyone doubling or halving a recipe use this conversion to keep proportions accurate without dirtying a dozen measuring spoons.
FAQ
How many teaspoons are in a cup?
There are exactly 48 teaspoons in one US cup, so 1 tsp = 0.02083333 cup.
What is the formula to convert teaspoons to cups?
Multiply the teaspoon value by 0.02083333. In symbols, cup = tsp × 0.02083333.
How do I convert cups back to teaspoons?
Multiply cups by 48. So 2 cups = 96 teaspoons.
Is the conversion exact?
Yes — 48 tsp per cup is exact; 0.02083333 is the rounded decimal of 1/48.
Related converters
- Cup to Teaspoon Converter
- Teaspoon to Tablespoon Converter
- Teaspoon to Milliliter Converter
- Teaspoon to Liter Converter
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Recommended reading
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