Cups to Teaspoons Conversion Table

Convert 0.125-4 cups to teaspoons

Any volume value in cup can be converted to tsp using the conversion factor:

  • 1 cup = 48 Teaspoon
  • tsp = cup × 48

cup → tsp Quick Converter

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What is cup?

A cup is a unit of measurement used to quantify volume. It is commonly abbreviated as "cup" and represents a standardized amount typically used in cooking, baking, and beverage preparation.

What is Teaspoon (tsp)?

The teaspoon is a widely used unit of volume measurement, especially in cooking, baking, and pharmaceuticals.

How to Convert cup to Teaspoon

tsp = cup × 48

Example

Convert 0.500 cup to tsp:

0.500 × 48 = 24 tsp

Cups to Teaspoons Conversion Table

Values from 0.125 to 4.000 cup.

cup to tsp (0.125 – 2.000 cup)
cup tsp
6
¼ 12
18
½ 24
30
¾ 36
42
1 48
1 ⅛ 54
1 ¼ 60
1 ⅜ 66
1 ½ 72
1 ⅝ 78
1 ¾ 84
1 ⅞ 90
2 96
cup to tsp (2.125 – 4.000 cup)
cup tsp
2 ⅛ 102
2 ¼ 108
2 ⅜ 114
2 ½ 120
2 ⅝ 126
2 ¾ 132
2 ⅞ 138
3 144
3 ⅛ 150
3 ¼ 156
3 ⅜ 162
3 ½ 168
3 ⅝ 174
3 ¾ 180
3 ⅞ 186
4 192

Frequently Asked Questions

How many teaspoons are in a cup?

There are exactly 48 teaspoons in 1 US cup. This is derived from 16 tablespoons per cup and 3 teaspoons per tablespoon (16 × 3 = 48).

How many teaspoons are in half a cup?

There are 24 teaspoons in half a cup (1/2 cup). While this is a large number of teaspoons, it can be useful when scaling down recipes.

When would I need to convert cups to teaspoons?

This conversion is helpful when scaling recipes down to very small portions, or when a recipe calls for a fraction of a cup and you only have a teaspoon measure available.

How many teaspoons are in a quarter cup?

There are 12 teaspoons in a quarter cup (1/4 cup). This equals 4 tablespoons, which is often easier to measure.

What is the relationship between teaspoons, tablespoons, and cups?

There are 3 teaspoons in 1 tablespoon, 16 tablespoons in 1 cup, and therefore 48 teaspoons in 1 cup. These are exact US customary measurements.

Conversion factors verified against NIST, BIPM, ISO 80000-3 1 US gallon = 3.785411784 L (exact, US customary). Last reviewed: March 2026
Tiago Fernandes Reviewed by Tiago Fernandes