An avoirdupois dram is 1/16 ounce.
Drams to Zettagrams
Convert drams (dr) to zettagrams (Zg) instantly. Free online weight converter with formulas, tables and examples.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Length Converter
Convert metric, imperial, and nautical distance units.
Context values
Some unit families need one extra value for a physically accurate result.
Zettagram is 1e+21 gram units.
Zg = dr × 1.77184519531e-21
Results update instantly for Drams to Zettagrams conversions.
Reserved above the conversion cards and below the converter.
Formula
Zg = dr × 1.77184519531e-21
dr = Zg ÷ 1.77184519531e-21
Conversion table
| 1 dr | 1.771845e-21 Zg |
| 5 dr | 8.859226e-21 Zg |
| 10 dr | 1.771845e-20 Zg |
| 20 dr | 3.543690e-20 Zg |
| 50 dr | 8.859226e-20 Zg |
| 100 dr | 1.771845e-19 Zg |
| 500 dr | 8.859226e-19 Zg |
| 1000 dr | 1.771845e-18 Zg |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
What is the source unit in this conversion?
The source unit is the dram (dr). An avoirdupois dram is 1/16 ounce.
What is the destination unit in this conversion?
The destination unit is the zettagram (Zg). Zettagram is 1e+21 gram units.
How do I convert drams to zettagrams?
Multiply the number of drams by 1.77184519531e-21 to get the equivalent value in zettagrams. For example, 5 dr × 1.77184519531e-21 = 8.859226e-21 Zg.
Is the dram to zettagram conversion exact?
Yes. This converter uses a fixed factor of 1.77184519531e-21, so results are precise and consistent every time you use it.
Where is this conversion commonly used?
It's used in everyday measurement, shipping and logistics, scientific and industrial work, and any context where you need to switch between dram and zettagram values.
Can I convert zettagrams back to drams?
Yes. Multiply the zettagrams value by 5.64383391193e+20, or divide it by 1.77184519531e-21, to convert back to drams.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
This page converts drams (dr) into zettagrams (Zg) using the Universal Converter's mass conversion engine.
Dram-to-Zettagram conversions are useful for everyday calculations, scientific work, shipping, and any task that mixes different weight or mass units.
The formula is Zg = dr × 1.77184519531e-21, based on the standard definitions of dram and zettagram.
Because the conversion factor is fixed, results stay consistent and repeatable no matter how many times you calculate them.
Dram: An avoirdupois dram is 1/16 ounce. Zettagram: Zettagram is 1e+21 gram units.