Cups to teaspoons converter
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Convert cups to teaspoons instantly: 1 cup is 48 teaspoons. Recipes, baking and cooking, with the exact math and one-click copying.
a cup is 48 teaspoons — the reason baking recipes are exhausting.
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Math, not advice — results are indicative. Read the disclaimer.
pro tips
Multiply by 48: half a cup is 24 tsp. A quarter cup is 12.
1 cup is 16 tbsp, and 1 tbsp is 3 tsp — the bridge to 48.
Downsizing a recipe often means converting cups to spoons; this is that page.
what it does
One US cup is 48 teaspoons. Multiply cups by 48 and the teaspoons appear, which is how a recipe written for a cup gets broken down for anyone working with spoons.
It shows up when a recipe is scaled down and "one cup" becomes a running count of teaspoons, when a small batch of icing is measured in spoons but the original was in cups, when a spice blend is divided from cups to teaspoons for portioning, and in any kitchen without the right measuring cup.
The shortcut: 1 cup is 48 teaspoons, half a cup is 24, a quarter cup is 12, and a tablespoon is 3. The US volume ladder is powers of two plus a tablespoon bridge, which is why the numbers look busy but repeat.
Type any cup value and the widget answers in teaspoons instantly, with the math on screen. Click to copy, and swap when a teaspoon measure has to be rolled up into cups.
quick answers
How many teaspoons are in a cup?
48 in the US.
Is 48 teaspoons a cup?
Yes — 16 tablespoons, 48 teaspoons.
Why convert cups to teaspoons?
Because small batches and careful baking often measure in spoons while the source recipe spoke in cups.