US Trends

how big is a teaspoon

A standard kitchen teaspoon is about 5 milliliters (mL) of liquid, though the exact size can vary slightly by country.

Quick Scoop: Exact Size

  • In the US, a “teaspoon” for recipes is defined as about 4.93 mL.
  • In most metric countries (UK, Australia, much of Europe), a teaspoon is rounded to exactly 5 mL.
  • Nutrition labels and most modern cookbooks also treat 1 teaspoon as 5 mL for simplicity.

Teaspoon vs Other Spoons

  • 1 tablespoon is 3 teaspoons , so roughly 15 mL.
  • A fluid ounce is about 6 teaspoons in US measures.
  • These relationships are why many measuring spoon sets come in ¼, ½, 1 teaspoon and 1 tablespoon sizes.

Real-World Feel

A level measuring teaspoon is a small volume:

  • Roughly the amount of liquid that just covers the bottom of a standard soup spoon.
  • A typical sip of water from a glass is several teaspoons at once, which is why a teaspoon of something feels so small.

When Precision Matters

  • For cooking and baking, use a proper measuring teaspoon, not a random tea or coffee spoon from a cutlery drawer, as their volumes vary a lot.
  • For medicine (like cough syrup), follow the marked 5 mL line on the dosing cup or syringe instead of eyeballing a household spoon.

Tiny Conversion Table (HTML)

TeaspoonsApprox. mL
1 tsp5 mL
2 tsp10 mL
3 tsp15 mL
4 tsp20 mL
6 tsp30 mL
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Information gathered from public forums or data available on the internet and portrayed here.