Milliliters to Drops Conversion (mL to gtt)

How to Convert Milliliters to Drops

To convert a measurement in milliliters to a measurement in drops, multiply the volume by the following conversion ratio: 20 drops/milliliter.

Since one milliliter is equal to 20 drops, you can use this simple formula to convert:

drops = milliliters × 20

The volume in drops is equal to the volume in milliliters multiplied by 20.

For example, here's how to convert 5 milliliters to drops using the formula above.

drops = (5 mL × 20) = 100 gtt

How Many Drops Are in a Milliliter?

There are 20 drops in a milliliter, which is why we use this value in the formula above.

1 mL = 20 gtt

Milliliters and drops are both units used to measure volume. Keep reading to learn more about each unit of measure.

What Is a Milliliter?

The milliliter is a unit of volume equal to 1 cubic centimeter, 1/1,000 of a liter, or about 0.061 cubic inches.^[1]

The milliliter is an SI unit of volume in the metric system. In the metric system, "milli" is the prefix for thousandths, or 10^-3. A milliliter is sometimes also referred to as a millilitre. Milliliters can be abbreviated as mL, and are also sometimes abbreviated as ml or mℓ. For example, 1 milliliter can be written as 1 mL, 1 ml, or 1 mℓ.

Since one milliliter is equivalent to one cubic centimeter, milliliters are sometimes expressed using the abbreviation for a cubic centimeter (cc) for things such as medical dosages or engine displacements.

Learn more about milliliters.

What Is a Drop?

Drops are an approximate measurement of the amount of liquid dispensed from a dropper. It's important to note that a drop is not a precise volume measurement. Drops are often used to measure medications or cooking ingredients.

Drops can be abbreviated as gtt, and are also sometimes abbreviated as gt. For example, 1 drop can be written as 1 gtt or 1 gt.

Learn more about drops.

Milliliter to Drop Conversion Table

Table showing various milliliter measurements converted to drops.
Milliliters	Drops
0.05 mL	1 gtt
0.1 mL	2 gtt
0.15 mL	3 gtt
0.2 mL	4 gtt
0.25 mL	5 gtt
0.3 mL	6 gtt
0.35 mL	7 gtt
0.4 mL	8 gtt
0.45 mL	9 gtt
0.5 mL	10 gtt
0.55 mL	11 gtt
0.6 mL	12 gtt
0.65 mL	13 gtt
0.7 mL	14 gtt
0.75 mL	15 gtt
0.8 mL	16 gtt
0.85 mL	17 gtt
0.9 mL	18 gtt
0.95 mL	19 gtt
1 mL	20 gtt

References

National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf

Milliliters to Drops Converter

Result: Drops

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