💧 Drops to mL Conversion
Convert between drops and milliliters using an adjustable drops-per-mL rate, since drop size varies by liquid and dropper.
Converting drops to milliliters
The standard medical and pharmaceutical convention treats one milliliter as approximately 20 drops of a water-like liquid, giving a drop volume of about 0.05 mL. This is the widely used approximation for standard droppers, though the exact number of drops per mL varies with liquid viscosity, surface tension, and the dropper or IV set used.
This calculator lets you convert in either direction and adjust the drops-per-mL rate if your dropper or liquid is documented differently (for example, some IV administration sets use 15, 60, or other drop factors). It also shows the teaspoon equivalent for quick reference.
This tool is for general planning and educational purposes only. For any medication or clinical dosing, always follow your product label, prescription, or a healthcare provider’s instructions rather than an approximate drop conversion.