how many ml is a teaspoon

A standard teaspoon is equal to 5 milliliters (mL). For everyday cooking and medicine dosing, 5 mL is the universal standard, though exact figures vary slightly depending on the measurement system.

Regional & Exact Measurements

• Metric Teaspoon. Equals exactly 5 mL. This is the standard used in most countries and for medical dosing.
• US Customary Teaspoon. Equals 4.93 mL (4.9289 mL). In US cooking, this is almost always rounded up to 5 mL.
• UK Imperial Teaspoon. Equals 5.92 mL. This is an older measurement rarely used in modern recipes.

Common Teaspoon Conversions

You can use the Omni Calculator tsp to mL Converter for custom amounts, or use these quick kitchen equivalents:

• 1/4 teaspoon. Equals 1.25 mL.
• 1/2 teaspoon. Equals 2.5 mL.
• 1 teaspoon. Equals 5 mL.
• 3 teaspoons (1 tablespoon). Equals 15 mL.

Note: Always use calibrated measuring spoons rather than regular silverware, as cutlery spoons can hold anywhere from 2.5 mL to over 7 mL.