How to Convert Teaspoons to Cups
Converting teaspoons to cups is useful for scaling recipes with many small increments, baking with precise spice amounts. Our free online calculator delivers instant, accurate results.
15.00 tsp = 0.3125 cups
To convert teaspoons to cups, multiply by 0.0208333.
Step-by-Step
- Start with your value: 15.00 tsp
- Multiply by 0.0208333
- Result: 0.3125 cups
Formula: cups = tsp × 0.0208333
💡 Memory Tip: 48 teaspoons = 1 cup. 1 tsp = 1/48 cup ≈ 0.021 cups. 3 tsp = 1 tbsp = 1/16 cup.
Teaspoons to Cups Quick Reference
| Teaspoons | Cups | Common Reference |
|---|---|---|
| 1 | 0.021 | One teaspoon |
| 3 | 0.063 | One tablespoon |
| 12 | 0.250 | Quarter cup |
| 24 | 0.500 | Half cup |
| 48 | 1.000 | One cup |
Understanding Teaspoons and Cups
What is a Teaspoon?
A US teaspoon = 1/3 tablespoon = 1/48 cup = 4.929 mL. Used for spices, extracts, and medicine.
What is a Cup?
A US cup = 8 fl oz = 48 teaspoons = 236.588 mL. Standard US baking and cooking measure.
Key Conversion Facts
- 48 tsp = 1 cup
- 1 tsp = 0.0208333 cups
- 3 tsp = 1 tbsp = 1/16 cup
- 1 Teaspoon = 0.0208333 cups
✅ Free to use ✅ No registration required ✅ Accurate to 4 decimal places
Frequently Asked Questions
15 teaspoons equals 0.3125 cups. Multiply by 0.0208333.
cups = tsp × 0.0208333
For 15 tsp: 15 × 0.0208333 = 0.3125 cups
Multiply your teaspoons value by 0.0208333. Example: 10 tsp × 0.0208333 = 0.2083 cups.
Yes — accurate to 4 decimal places using internationally standardized conversion factors. Suitable for cooking, science, and everyday use.
Common uses include scaling recipes with many small increments, baking with precise spice amounts. Our converter handles all these scenarios instantly.