Helpful Toolbox

Teaspoons to mL Converter

Type any amount in one box and watch teaspoons, tablespoons, milliliters, and fluid ounces update together in real time.

📖 How it works & FAQ
—Teaspoons1 tsp = 4.929 mL
—Tablespoons1 tbsp = 14.79 mL
—Millilitersmetric base unit
—Fluid ounces1 fl oz = 29.5735 mL

Why teaspoons and milliliters don't line up neatly

A US teaspoon isn't a round metric number — it's officially 4.929 mL, and a US tablespoon is 14.79 mL (exactly three teaspoons). That's why recipes translated between American and metric kitchens can feel slightly off. This converter uses those exact constants so your baking, dosing, and cocktail measurements stay accurate instead of rounded to a guess. Enter a value in any one box and the other three fill in automatically.

tsp, tbsp, mL and fl oz at a glance

The four units here cover almost every liquid or small-volume measure you'll meet in a recipe. Teaspoons and tablespoons are the everyday spoon measures, milliliters are the metric standard used across most of the world, and US fluid ounces (29.5735 mL each) show up on American packaging and drink recipes. Because everything is calculated from a shared milliliter base, the numbers always stay consistent no matter which box you start in.

How to use it

  1. Pick the unit you already know — for example, teaspoons.
  2. Type the amount into that box (decimals like 1.5 are fine).
  3. Read the converted amounts instantly in the results row below.
  4. Clear the box or type in a different unit to start a fresh conversion.

These conversions are handy estimates for cooking and general use; for precise medication dosing, always follow the device or label supplied with the product.

FAQ

How many mL is one teaspoon?
One US teaspoon equals 4.929 mL. Many people round it to 5 mL for convenience, which is close enough for most cooking.
How many teaspoons are in a tablespoon?
Exactly three. A tablespoon is 14.79 mL and a teaspoon is 4.929 mL, so 14.79 ÷ 4.929 = 3 teaspoons.
Is a US fluid ounce the same as a UK one?
No. This tool uses the US fluid ounce (29.5735 mL). A UK/imperial fluid ounce is about 28.41 mL, so double-check which system your recipe follows.
Are the results saved or sent anywhere?
No. Everything runs in your browser, nothing is uploaded, and closing the tab clears it all.