Convert cups to teaspoons

1 cup=48.6922tsp

Use the converter below to change any cups value into teaspoons instantly — with formula, conversion table, and real-world examples.

You have

Equals

48.69221

Conversion formula

Forward

teaspoons = cups × 48.6922

Reverse

cups = teaspoons × 0.02054

Example: 10 cup × 48.6922 = 486.922 tsp.

About both units

From

Cup

cup

The US cup equals 240 millilitres in common usage (legally defined as 236.588 ml). The metric cup (Australia, NZ) is 250 ml; the UK "cup" is 284 ml but rarely used in recipes. Cooking recipes from the US dominate online, so 240 ml is the safe default for "cup".

Real-world: 1 cup of water = 240 g = 240 ml. 1 cup of all-purpose flour weighs about 125 g. A Starbucks Tall is 12 fl oz = 1.5 cups.

Read full cup reference →

Teaspoon

tsp

The teaspoon equals 4.929 ml in the US, rounded to 5 ml in most recipes and on medication labels. The relationship 3 teaspoons = 1 tablespoon is universal across US, UK and metric systems. Precision medicine and small-volume cooking rely on teaspoons.

Real-world: 1 teaspoon of sugar = 4 g = 16 calories. Salt in a recipe often ½ to 1 tsp per 500 g food.

Read full teaspoon reference →

Cup to Teaspoon conversion table

Common cups to teaspoons values for quick reference.

Cup (cup)	Teaspoon (tsp)
1 cup	48.6922 tsp
2 cup	97.3844 tsp
5 cup	243.461 tsp
10 cup	486.922 tsp
20 cup	973.844 tsp
50 cup	2,434.61 tsp
100 cup	4,869.22 tsp
200 cup	9,738.44 tsp
500 cup	24,346.1 tsp
1,000 cup	48,692.21 tsp

Tips & common mistakes

Quick tips

US cup = 240 ml common; 236.6 ml legal; UK cup = 284 ml; metric cup (AU/NZ) = 250 ml.
Weights (grams) are more reliable than cups — a cup of flour can vary 30% depending on how packed.
For baking, always use the recipe author's country convention.

Avoid these

Using a UK 284 ml cup for a US recipe calling for 240 ml — 18% overshoot.
Treating all dry ingredients as 1 cup = 240 g — only true for water.
Using a coffee mug as a "cup" — mugs vary 200–400 ml.

Frequently asked questions

How many teaspoons in a cup?

One cup equals 48.6922 teaspoons.

How do I convert cups to teaspoons?

Multiply the cup value by 48.6922 to get the equivalent in teaspoons.

What is 100 cups in teaspoons?

100 cups equals 4,869.22 teaspoons.

Is a cup bigger than a teaspoon?

Yes. 1 cup equals 48.6922 teaspoons, so one cup is larger.

How to convert cups to teaspoons without a calculator?

Multiply by 48.69 for a quick estimate; use a calculator for precise results.

Related volume conversions

📊 See full comparison matrix →

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Convert cups to teaspoons

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