Drops to mL Converter
By convention, 1 mL ≈ 20 drops (1 drop ≈ 0.05 mL). Actual drop size depends on the dropper and the liquid, so pick the drops-per-mL that matches yours.
Drops to mL chart
| Drops ↓ / drops per mL → | 10 | 15 | 20 | 60 |
|---|---|---|---|---|
| 1 drops | 0.1 mL | 0.067 mL | 0.05 mL | 0.017 mL |
| 5 drops | 0.5 mL | 0.333 mL | 0.25 mL | 0.083 mL |
| 10 drops | 1 mL | 0.667 mL | 0.5 mL | 0.167 mL |
| 20 drops | 2 mL | 1.333 mL | 1 mL | 0.333 mL |
| 30 drops | 3 mL | 2 mL | 1.5 mL | 0.5 mL |
| 40 drops | 4 mL | 2.667 mL | 2 mL | 0.667 mL |
| 60 drops | 6 mL | 4 mL | 3 mL | 1 mL |
| 100 drops | 10 mL | 6.667 mL | 5 mL | 1.667 mL |
IV administration sets print their exact drop factor (10, 15, 20 or 60 gtt/mL) on the package — see the IV drip rate calculator. For teaspoons, see teaspoon to mL.
FAQ
How many drops are in 1 mL?
About 20 drops is the common convention (a "metric drop" of 0.05 mL), but real drop size depends on the dropper and the liquid — anywhere from roughly 10 to 30 drops per mL. Medical IV sets state their exact drop factor.
How many mL is 1 drop?
Using the 20 drops/mL convention, 1 drop ≈ 0.05 mL. With a 60 drops/mL microdrip set, 1 drop ≈ 0.0167 mL.
Why do drop sizes differ?
Drop size depends on the dropper tip diameter, the liquid's surface tension and viscosity, and the angle the dropper is held. That is why products that dose in drops supply their own dropper.
How many drops in a teaspoon?
At 20 drops/mL, a 5 mL metric teaspoon is about 100 drops — but this varies with the dropper.
More converters: mg to mL · mL to cc · mcg to mg · IU to mg · units to mg · syringe sizes · needle gauge chart · IV drip rate · mL/hr · teaspoon to mL · drops to mL · BMI · lbs to kg · blood sugar mg/dL⇄mmol/L · A1c to eAG · cholesterol · °F to °C · oz to mL · cm to feet · vitamin D ng/mL⇄nmol/L · creatinine mg/dL⇄µmol/L · hemoglobin g/dL⇄g/L · mmHg⇄kPa · kg to lbs · grams to ounces · pounds to stone · mg to mcg · peptide MW calculator · amino acid chart · codon chart · ng to mcg · molarity calculator · dilution C1V1=C2V2 · blood type chart · RPM to g · ppm to mg/L · mEq to mg · liters to gallons · buffer pH · percent solution · grams to moles · °C to K · µL to mL · inches to cm · triglycerides mg/dL⇄mmol/L · uric acid mg/dL⇄µmol/L · cups to mL · tablespoon to mL · kg to stone
Last updated: · Found an error? Report it.