What is the equivalent of 1 teaspoon in milliliters?

One teaspoon is commonly recognized as being equivalent to 5 milliliters. This conversion is widely used in both culinary and medical contexts. Understanding this measurement is crucial for LPNs and healthcare providers, as accurate dosing of medications often requires precise measurements. For instance, when measuring liquid medications, knowing that 1 teaspoon equals 5 mL ensures that patients receive the correct dosages, thereby enhancing safety and effectiveness in treatments. This 5 mL standard is established in guidelines and reference materials commonly used in nursing and pharmacy to ensure consistency.