Drops to mL Converter
Precise drops to milliliters calculations for any volume need
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Standard: 1 drop = 0.05 mL (20 drops = 1 mL)
Popular Drops to mL Conversions
| Drops (gtt) | Milliliters (mL) |
|---|---|
| 1 | 0.05 |
| 10 | 0.5 |
| 20 | 1.0 |
| 50 | 2.5 |
| 100 | 5.0 |
| 200 | 10.0 |
| 1000 | 50.0 |
Drops to mL Formula
Drops → mL
mL = drops × 0.05
Example: 15 drops = 15 × 0.05 = 0.75 mL
mL → Drops
drops = mL ÷ 0.05
Example: 1 mL = 1 ÷ 0.05 = 20 drops
Visual Drops to mL Scale
1 drop
0.05 mL
One drop fills 5% of 0.1 mL
20 drops
1 mL
20 drops fill a full milliliter
Drop Size Variations
- Standard/Metric: 0.05 mL per drop (most common)
- US Pharmacopeia: 0.05 mL (medical standard)
- Essential Oils: 0.03-0.05 mL (viscosity dependent)
- Water: ~0.05 mL at 20°C
Common Questions
How many drops in 5 mL?
5 mL ÷ 0.05 = 100 drops exactly.
Does temperature affect drop size?
Yes, warmer liquids form larger drops by 5-10%.
1 drop of water equals?
Approximately 0.05 mL under standard conditions.
Medical drops standard?
US Pharmacopeia defines 20 drops per mL.
References
United States Pharmacopeia (USP). “General Chapters: Weights and Measures.” USP 43-NF 38 (2020).
World Health Organization. “Annex 9: Guidelines on packaging for pharmaceutical products.” WHO Technical Report Series, No. 902 (2002).
European Pharmacopoeia 10.0. “2.9.5. Drop Size.” (2020).