Convert Icing Sugar from Teaspoon to Cup (US)

How many US cups is 1 teaspoon of icing sugar?

1 teaspoon of icing sugar (Powdered Sugar) is 0.02 US cups. 2 teaspoons of icing sugar is 0.04 US cups. Use the converter below for any amount.

  • These figures use the US cup (240 ml). A metric cup is slightly larger at 250 ml, so it holds a little more. Use the metric cup converter →
  • Cup sizes are not standard worldwide, so the same cup of an ingredient can weigh more or less depending on the country. What is a cup measurement →
  • A teaspoon here is the 5 ml standard, the same in the UK, Europe, and Australia. A US teaspoon is fractionally smaller at about 4.9 ml. When teaspoon size matters →
  • A little over or under won't ruin the bake. An extra spoon mainly makes it sweeter.

Icing sugar is a finely milled white sugar with a light, silky texture. One metric cup weighs approximately 125 grams (4.41 oz), noticeably lighter than granulated sugar because the fine particles don't pack as tightly. It's used in buttercreams, glazes, frostings, and as a dusting over cakes and pastries.

Icing sugar is so fine and airy that the amount you get in a cup can vary significantly depending on how it's scooped — measuring by weight gives far more consistent results. This page lets you convert icing sugar between grams, cups, tablespoons, and more so your recipes turn out reliably every time.

Also known as

  • Powdered Sugar
  • Confectioners' Sugar

Granulated sugar is the coarse, crystalline form that icing sugar is milled from. It is heavier by cup (201 g vs 125 g) and creams into butter for cakes, whereas icing sugar suits frostings and dusting, so the two are not a straight 1:1 swap. See our Sugar converter.

Raw sugar has large, coarse crystals with a faint molasses taste, far removed from the fine powder of icing sugar. It packs much heavier (200 g vs 125 g per cup), so the two are not a straight swap. See our Raw Sugar converter.

Out of icing sugar? See icing sugar substitutes →

No measuring cups? The tool below gets you close. For consistent results, grab a measuring cup set.

Icing Sugar Measurement Converter

Enter a value and pick your units.

Result

0 Cup (US)

Common Icing Sugar Conversions

Here are the most common icing sugar conversions from teaspoons to cups (US).

TeaspoonsCups (US)
0.25 tsp0.01 cups (US)
0.5 tsp0.01 cups (US)
1 tsp0.02 cups (US)
2 tsp0.04 cups (US)
3 tsp0.06 cups (US)
4 tsp0.08 cups (US)
6 tsp0.13 cups (US)
8 tsp0.17 cups (US)
12 tsp0.25 cups (US)

Icing Sugar Conversion Chart

The conversion chart below gives a quick reference for converting icing sugar from Teaspoon to Cup (US) and other measurements.

tspcup(US)cupgramsouncestbsp
1 tsp0.02 cup (US)0.02 cup2.5 g0.09 oz0.33 tbsp
2 tsp0.04 cup (US)0.04 cup5 g0.18 oz0.67 tbsp
3 tsp0.06 cup (US)0.06 cup7.5 g0.26 oz1 tbsp
4 tsp0.08 cup (US)0.08 cup10 g0.35 oz1.33 tbsp

Frequently Asked Questions

How many US cups is 1 teaspoon of icing sugar?
1 teaspoon of icing sugar is 0.02 US cups. The ratio is fixed, so 2 teaspoons of icing sugar is 0.04 US cups and 0.5 teaspoons is 0.01 US cups. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the icing sugar converter
How many US cups is 1.5 teaspoons of icing sugar?
1.5 teaspoons of icing sugar is 0.03 US cups. The ratio is fixed, so 1 teaspoon of icing sugar is 0.02 US cups and 2 teaspoons is 0.04 US cups. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
How many US cups is 2 teaspoons of icing sugar?
2 teaspoons of icing sugar is 0.04 US cups. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 teaspoon of icing sugar is 0.02 US cups, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact US cups reading.
How many teaspoons of icing sugar is 0.02 US cups?
0.02 US cups of icing sugar is 0.96 teaspoons. The conversion works the same in reverse, so you can switch between US cups and teaspoons without changing the result. This helps when a recipe lists teaspoons but you would rather weigh or measure in US cups. The converter above and the chart below cover both directions for any amount.
How many US cups is 1 teaspoon of Powdered Sugar?
Powdered Sugar is another name for icing sugar, so 1 teaspoon of Powdered Sugar is 0.02 US cups, exactly the same as icing sugar. The figure does not change with the name: 2 teaspoons is 0.04 US cups and 0.5 teaspoons is 0.01 US cups. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.

Other Ingredients

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