1 mL equals how many drops
1 mL is approximately 20 drops using a standard medical dropper (20 drops/mL is the universal standard for most IV drip sets and oral droppers).
However, the exact number depends on the context:
| Context | Drops per mL |
|---|---|
| Standard medical dropper (GTT) | 20 drops |
| IV macrodrip set (most common) | 10, 15, or 20 drops |
| IV microdrip set | 60 drops |
| Water (physics estimate) | ~20 drops |
| Thick liquids / oils | ~15 drops (larger drops) |
For IV drip rate calculations, the drop factor is always printed on the IV tubing packaging - never assume it.
For medication dosing, the standard pharmacopeial dropper delivers 20 drops/mL of water.
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