There are approximately 240 drops in 10 ml. Therefore 2.5 ml contains about 60 drops.
The volume of a drop can vary depending on the liquid and the dropper being used. In the context of water, which is often used as a reference point, one drop is approximately 0.05 ml. Therefore, 30 drops would be roughly equivalent to 1.5 ml (30 drops x 0.05 ml/drop = 1.5 ml).
25 mL is about 0.845 US fluid ounces.
i have always been told 20 drops per ml is rule of thumb, i am a certified pharmacy technician, and that is what we go by when dispensing medication It, of course, depends on factors like type of solution, temperature, viscosity, etc. (All of which are, yes, taught to all students in pharmaceutical classes) The typical "rule of thumb" is 20 drops/ ml for low viscosity liquids, such as water.
25 milliliters = 0.11 (0.1056688209433) cup (US)
for most fluids it takes about 10 drops to equal 1 ml 1 fluid ounce (US) equals 29.56 ml or about 296 drops so 1000 drops is about 3. 35 fluid ounces more or less.