Tsp to Cups Converter
The direct answer: 1 cup = 48 teaspoons. That’s the U.S. standard in 2025. Below you’ll find a tsp-to-cup chart, practical examples, and common mistakes—plus a one-click link back to the instant converter.
Open the Tablespoons ↔ Cups CalculatorQuick Answer: 1 cup = 48 teaspoons.
Updated for 2025 · Applies to U.S. cups and teaspoons.
Teaspoon to Cup Conversions (at a glance)
Common Measurements
| Measure | Equivalent |
|---|---|
| 1 tsp | 1/48 cup (≈ 0.02 cup) |
| 3 tsp | 1 Tbsp |
| 24 tsp | 1/2 cup |
| 48 tsp | 1 cup |
Takeaway: Remember “48 teaspoons = 1 cup” for quick kitchen math.
Related Conversions
- 1 tablespoon = 3 teaspoons
- 1/4 cup = 12 teaspoons
- 1/3 cup ≈ 16 teaspoons
Real-World Example: Cake Frosting
A frosting recipe calls for 1/2 cup of cocoa powder, but your teaspoon set is handy. Simply measure 24 teaspoons. This ensures sweetness and texture stay balanced.
Summary: 1/2 cup = 24 tsp, 1 cup = 48 tsp.
Common Mistakes (and fixes)
Forgetting the ratio
Many cooks remember tablespoons but forget teaspoons. Memorize 48 tsp = 1 cup.
Takeaway: Lock the 48-to-1 ratio into memory.
Using heaping spoons
Always use level teaspoons. A heaping spoonful can throw off delicate recipes like frosting or custard.
Takeaway: Level = reliable results.
Mixing metric and U.S. systems
Metric teaspoon = 5 mL. U.S. teaspoon ≈ 4.93 mL. Ratios hold, but volumes differ slightly.
Takeaway: Stay consistent in one measurement system.
10-Second Method: Convert teaspoons to cups
- Remember: 1 cup = 48 tsp.
- Half it: 24 tsp = 1/2 cup.
- Quarter it: 12 tsp = 1/4 cup.
- For tricky amounts, use the Tablespoons ↔ Cups Calculator.
Summary: All teaspoon-to-cup math comes back to 48 per cup.
Keep Converting
FAQ: Tsp to Cups
How many teaspoons are in a cup?
48 teaspoons. Since 1 Tbsp = 3 tsp and 1 cup = 16 Tbsp, multiply: 16 × 3 = 48.
How many teaspoons in 1/2 cup?
24 teaspoons. Half of 48 equals 24.
How many teaspoons in 1/4 cup?
12 teaspoons. Divide 48 by 4 to get 12.