Drop to Petaliter Converter
Unit Converter
Instant · Precise · Universal
47 units available
6 categories total
How to Convert Drop to Petaliter
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) = 5.000000e-20 Petaliter (PL).
Drop to Petaliter — Common Values
| Drop (gtt) | Petaliter (PL) |
|---|---|
| 0.1 | 5.000000e-21 |
| 0.5 | 2.500000e-20 |
| 1 | 5.000000e-20 |
| 2 | 1.000000e-19 |
| 5 | 2.500000e-19 |
| 10 | 5.000000e-19 |
| 25 | 1.250000e-18 |
| 50 | 2.500000e-18 |
| 100 | 5.000000e-18 |
| 500 | 2.500000e-17 |
| 1000 | 5.000000e-17 |
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 Petaliter (PL)
Definition
The petaliter is a unit of volume equal to 10¹⁵ liters, or 1,000 cubic kilometers.
Mathematical Relationship
1 PL = 10¹⁵ L = 10¹² m³ = 1,000 km³ = 1,000 TL. One exaliter = 1,000 PL.
Conversion Formula
To liters: multiply by 10¹⁵. To km³: multiply by 1,000. To teraliters: multiply by 1,000.
Practical Applications
No everyday practical use. Used for expressing very large natural water volumes in scientific literature.
Interesting Facts
All the world's rivers contain approximately 2.12 PL of water. Earth's ice caps hold about 26.5 PL of freshwater.
Common Mistakes
Rarely encountered, so the main mistake is not understanding the scale: 1 PL = one quadrillion liters.
Educational Tips
Petaliters describe planet-scale volumes. Earth's total freshwater ≈ 35 PL. The prefix chain: kilo, mega, giga, tera, peta.