How many milliliters are equivalent to one teaspoon (1 tsp)?

One teaspoon is equivalent to 5 milliliters. This measurement is widely accepted in both cooking and pharmaceutical dosing, providing a standardized unit for measurements. Understanding this conversion is crucial, particularly in the pharmacy context, where accurate dosing of medications is essential for patient safety and effective treatment. This knowledge is critical for pharmacy technicians, as they often need to convert between different units of measurement to ensure precise medication dispensing and patient education. Therefore, recognizing that a teaspoon holds 5 milliliters is fundamental in practicing effective pharmacy operations.