How many milliliters are in 1 teaspoon?

When converting teaspoons to milliliters, it is important to know that 1 teaspoon is equivalent to approximately 5 milliliters. This conversion is commonly used in both culinary practices and medication dosing to ensure accurate measurements. The 5 mL measurement aligns with standard metric conversions, making it a reliable figure for both professionals and those in everyday scenarios. Other options, such as 10 mL, 15 mL, and 20 mL, represent larger amounts and do not correctly reflect the equivalence of 1 teaspoon, reinforcing the importance of understanding these conversions in medical and nutritional contexts.