How many milliliters are equivalent to 1 teaspoon?

One teaspoon is equivalent to 5 milliliters. This conversion is a standard measurement used in cooking and medication administration. In practice, knowing that 1 teaspoon equals 5 mL is crucial for accurate dosing and ensuring patient safety when administering liquid medications. This conversion helps healthcare providers and caregivers make appropriate calculations when switching between metric and household measurements, which is often necessary to ensure the right amount of medication is given. Understanding this equivalence supports effective communication and minimizes the risk of dosage errors.