If you’re converting sauces, rounding to the nearest 5 mL is usually fine.
How Many Teaspoons Are in a Cup?
Quick explanation
Use this page when recipe steps move from larger cup amounts into teaspoon measurements for spices, flavorings, or precise adjustments. This helps when scaling recipes while keeping a kitchen-friendly tsp output instead of guessing at small spoon totals. If your recipe source uses a different cup convention, use the Metric/US setting to stay consistent across the full recipe. It is especially useful when baking or seasoning needs smaller spoon steps. For related tools, check cups to tablespoons, teaspoons to cups, and the kitchen volume hub.
cup to tsp
Converted value
50 tsp
~ 50 tsp
Scale preview
Quick equivalents
Quick kitchen estimate. For precise nutrition or production work, verify standards and source measurements.
Calculation steps
How to convert cups to teaspoons manually
tsp = (cups × cup-size-in-mL) ÷ 5
Use 250 mL for Metric cup and 236.588 mL for US cup.
Practical kitchen shortcut
US shorthand: 1 cup = 48 tsp
Exact output varies slightly with selected cup standard, but shortcut is useful for quick planning.
Worked example
Input: 0.5
Metric: (0.5 × 250) ÷ 5 = 25 tsp; US: (0.5 × 236.588) ÷ 5 = 23.66 tsp.
Practical: 1/2 cup is often treated as 24 tsp in US shorthand.
About these units
Cup standard and recipe source
Cup values differ by standard, so your teaspoon output changes depending on Metric vs US mode.
- Metric cup = 250 mL.
- US cup ≈ 236.588 mL.
Teaspoon (tsp)
Teaspoons are useful for spices, extracts, and other small-volume ingredients where cups are too broad.
- 1 tsp = 5 mL (metric kitchen convention used on this site).
- 3 tsp = 1 tbsp.
Tips
Some tools round differently. If your result is off by a tiny amount, rounding is usually the reason.
For best accuracy, use level teaspoons/tablespoons (not heaping).
Quick Reference
| cup | tsp |
|---|---|
| 0.13 | 6.25 |
| 0.25 | 12.5 |
| 0.33 | 16.65 |
| 0.5 | 25 |
| 0.75 | 37.5 |
| 1 | 50 |
FAQ
How many teaspoons are in 1 cup?
In common US shorthand, 1 cup is treated as 48 teaspoons. Exact output varies slightly by selected cup standard.
Why is there a Metric/US cup toggle?
Cup size depends on recipe source. Switch the setting to match your recipe and measuring tools.
How many teaspoons are in 1/2 cup?
In US shorthand, 1/2 cup is 24 teaspoons. In Metric mode it is slightly higher.