🧪 Volume Converter

Cups to Teaspoons
( cup → tsp )

Instantly convert US cups to US teaspoons. Enter any value below and get an accurate result with the full formula and reference table.

Converter Tool
cup
tsp
Result
1 cup = 48 tsp
48
tsp
The Formula
tsp = cup × 48
1 US cup = 8 fluid ounces = 48 teaspoons (since 1 fl oz = 6 tsp). This relationship is exact in US customary units.

How to Convert Cups to Teaspoons

To convert US cups to US teaspoons, multiply the number of cups by 48. This is because one cup is defined as 8 fluid ounces, and each fluid ounce contains 6 teaspoons.

Step-by-Step Example

Let’s convert 2 cups to teaspoons:

1. Multiply by 48: 2 × 48 = 96
2. So 2 cups equals 96 tsp.

For a smaller amount, 0.5 cup × 48 = 24 tsp.

When You’d Use Each Unit

Cups are commonly used in the US for measuring ingredients like flour, sugar, milk, or water in recipes. Teaspoons are used for small quantities of ingredients like spices, extracts, and leavening agents. Converting between them helps scale recipes accurately and understand serving sizes.

Conversion Table

Common cups values converted to teaspoons — typical values highlighted.

Cups (cup) Teaspoons (tsp) Approximate
Frequently Asked Questions
How do I convert cups to teaspoons quickly? +
Multiply the number of cups by 48. For example, 3 cups × 48 = 144 tsp.
How many teaspoons are in a cup? +
There are 48 teaspoons in one US cup.
What is 1 cup in tsp? +
1 cup = 48 tsp.
What is 1 tsp in cups? +
1 tsp = 1/48 cup ≈ 0.02083 cup.
Is this the same for UK cups? +
No, UK cups are larger (≈284 mL) and the teaspoon relationship differs. This converter uses US customary units.
Can I convert teaspoons back to cups with this tool? +
Yes! Just type a value into the teaspoons field and the cups field updates automatically. Or use the ⇄ swap button to switch directions.
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