Drop to Fluid Ounce (US) Converter
Unit Converter
Instant · Precise · Universal
47 units available
6 categories total
How to Convert Drop to Fluid Ounce (US)
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) = 0.001690701133 Fluid Ounce (US) (fl oz (US)).
Drop to Fluid Ounce (US) — Common Values
| Drop (gtt) | Fluid Ounce (US) (fl oz (US)) |
|---|---|
| 0.1 | 0.0001690701133 |
| 0.5 | 0.0008453505665 |
| 1 | 0.001690701133 |
| 2 | 0.003381402266 |
| 5 | 0.008453505665 |
| 10 | 0.01690701133 |
| 25 | 0.04226752832 |
| 50 | 0.08453505665 |
| 100 | 0.1690701133 |
| 500 | 0.8453505665 |
| 1000 | 1.690701133 |
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 Fluid Ounce (US) (fl oz (US))
Definition
The US fluid ounce is a unit of liquid volume equal to 1/128 of a US gallon, or approximately 29.574 milliliters.
Mathematical Relationship
1 US fl oz = 2 US tbsp = 6 US tsp = 1/8 US cup = 29.5735 mL.
Conversion Formula
To mL: multiply by 29.5735. To UK fluid ounces: multiply by 1.04084. To tablespoons (US): multiply by 2.
Practical Applications
Beverage cans (12 fl oz), water bottles (16.9 fl oz), coffee sizes, medicine dosing, and shampoo bottles.
Interesting Facts
A US fluid ounce of water weighs almost exactly 1 avoirdupois ounce (29.57 mL ≈ 28.35 g). The UK fl oz is slightly smaller (28.41 mL).
Common Mistakes
Confusing fluid ounces (volume) with ounces (weight). Also, US and UK fluid ounces differ slightly.
Educational Tips
1 fl oz ≈ 30 mL (close enough). A soda can = 12 fl oz. A standard water bottle = 16.9 fl oz ≈ 500 mL.