Convert Chopped Onion from Teaspoon to Cup (US)

How many US cups is 1 teaspoon of chopped onion?

1 teaspoon of chopped onion (diced onion) is 0.02 US cups. 2 teaspoons of chopped onion is 0.04 US cups. 1/2 teaspoon of chopped onion is 0.01 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, though it can nudge the final taste or colour.

When a recipe calls for a cup of chopped onion and you would rather not guess, the gram weight keeps your prep on track. One metric cup (250 ml) of chopped onion weighs 160 g (5.64 oz). This converter moves between cups, grams, tablespoons, and more.

Chopped onion packs loosely or tightly depending on how fine you cut it, so the cup weight drifts. Measuring in grams keeps a soffritto, soup base, or curry consistent every time.

Also known as

  • diced onion
  • chopped onions

Crushed garlic is the other prepped allium measured by the cup or spoon. Use the crushed garlic converter when a recipe lists garlic by volume instead of cloves. See our Crushed Garlic converter.

Starting from whole onions? The onion converter works out how many to buy for the cup count a recipe needs, across small, medium, and large sizes. See our Onion converter.

Out of chopped onion? See chopped onion substitutes →

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

Chopped Onion Measurement Converter

Enter a value and pick your units.

Result

0 Cup (US)

Common Chopped Onion Conversions

Here are the most common chopped onion 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)

Chopped Onion Conversion Chart

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

tspcup(US)cupgramsouncestbsp
1 tsp0.02 cup (US)0.02 cup3.2 g0.11 oz0.33 tbsp
2 tsp0.04 cup (US)0.04 cup6.4 g0.23 oz0.67 tbsp
3 tsp0.06 cup (US)0.06 cup9.6 g0.34 oz1 tbsp
4 tsp0.08 cup (US)0.08 cup12.8 g0.45 oz1.33 tbsp

Frequently Asked Questions

How many US cups is 1 teaspoon of chopped onion?
1 teaspoon of chopped onion is 0.02 US cups. The ratio is fixed, so 2 teaspoons of chopped onion 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 chopped onion converter
How many US cups is 1.5 teaspoons of chopped onion?
1.5 teaspoons of chopped onion is 0.03 US cups. The ratio is fixed, so 1 teaspoon of chopped onion 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 chopped onion?
2 teaspoons of chopped onion is 0.04 US cups. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 teaspoon of chopped onion 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 chopped onion is 0.02 US cups?
0.02 US cups of chopped onion 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 diced onion?
Diced onion is another name for chopped onion, so 1 teaspoon of diced onion is 0.02 US cups, exactly the same as chopped onion. 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.
Are chopped onion and diced onion the same thing?
Yes. Diced onion is another name for chopped onion, so they are the same ingredient and convert identically. 1 teaspoon of chopped onion is 0.02 US cups under either name, and 2 teaspoons is 0.04 US cups. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
How many US cups is 1/2 teaspoon of chopped onion?
1/2 teaspoon of chopped onion is 0.01 US cups. The ratio is fixed, so 1 teaspoon of chopped onion is 0.02 US cups and 2 teaspoons is 0.04 US cups. Half measures come up often when scaling a recipe down, and the figure divides cleanly. Use the converter above for any other amount, or the chart below for the common ones.

Other Ingredients

If you need help with any other ingredients click below: