Drop to Microliter Converter
Unit Converter
Instant · Precise · Universal
47 units available
6 categories total
How to Convert Drop to Microliter
To mL: multiply by 0.05 (approximate). To µL: multiply by 50. 20 drops ≈ 1 mL for aqueous solutions.
1 drop ≈ 0.05 mL = 50 µL ≈ 1/20 mL. Approximately 20 drops = 1 mL (for water-like liquids).
For example, 1 Drop (gtt) = 50 Microliter (µL).
Drop to Microliter — Common Values
| Drop (gtt) | Microliter (µL) |
|---|---|
| 0.1 | 5 |
| 0.5 | 25 |
| 1 | 50 |
| 2 | 100 |
| 5 | 250 |
| 10 | 500 |
| 25 | 1250 |
| 50 | 2500 |
| 100 | 5000 |
| 500 | 25000 |
| 1000 | 50000 |
About Drop (gtt)
Definition
The drop (medical/pharmacological) is an approximate unit of volume equal to about 0.05 milliliters, or 50 microliters.
Mathematical Relationship
1 drop ≈ 0.05 mL = 50 µL ≈ 1/20 mL. Approximately 20 drops = 1 mL (for water-like liquids).
Conversion Formula
To mL: multiply by 0.05 (approximate). To µL: multiply by 50. 20 drops ≈ 1 mL for aqueous solutions.
Practical Applications
Eye drop medication, ear drops, essential oil use, flavoring extracts in cooking, and IV drip rate measurement.
Interesting Facts
The size of a drop varies significantly: water drops from a glass dropper (~50 µL) differ from rain drops (~50,000–100,000 µL) by a factor of 1,000.
Common Mistakes
Assuming all drops are the same size — oily liquids produce larger drops than water. Always check the dropper calibration.
Educational Tips
20 drops ≈ 1 mL for water-based solutions. In IV therapy, standard drip sets deliver 10, 15, or 20 drops/mL depending on the design.
About Microliter (µL)
Definition
The microliter is a unit of volume equal to 10⁻⁶ liters, or one millionth of a liter, equivalent to one cubic millimeter.
Mathematical Relationship
1 µL = 10⁻⁶ L = 10⁻³ mL = 1 mm³ = 1,000 nL. One milliliter = 1,000 µL.
Conversion Formula
To mL: divide by 1,000. To liters: multiply by 10⁻⁶. To nanoliters: multiply by 1,000.
Practical Applications
Pipetting in labs, blood glucose monitor samples (~0.3–1 µL), PCR reactions (10–50 µL), and HPLC injection volumes.
Interesting Facts
A modern blood glucose meter needs only about 0.3 µL of blood — less than a small pinprick. Older models required 10+ µL.
Common Mistakes
Confusing µL with mL — 1 mL = 1,000 µL. Pipetting errors at this scale significantly affect experimental results.
Educational Tips
A microliter is a cube 1 mm on each side. A micro-pipette labeled 'P20' dispenses 2–20 µL — a staple in every biology lab.