Convert Decigram to Dram (apothecary/troy)
Convert decigrams to drams (apothecary/troy) instantly. 1 decigram = 0.0257205973 dram (apothecary/troy) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Dram (apothecary/troy) to Decigram converter for the reverse conversion.
Units explained
Decigram
A decigram (dg) equals 0.0001 kilogram, or 0.1 gram.
From the SI prefix 'deci-' (from Latin 'decimus', tenth).
Occasional laboratory and pharmacy use.
Part of the original metric system of 1795.
Dram (apothecary/troy)
The apothecary (troy) dram equals one-eighth of a troy ounce, about 3.888 grams.
From the apothecaries' system rooted in the Greek 'drachma'.
Historical pharmacy and medicine compounding.
Part of the apothecaries' system of weights used through the 19th century.
Decigram to Dram (apothecary/troy) conversion formula
The relationship between decigrams and drams (apothecary/troy):
To convert decigrams to drams (apothecary/troy), multiply the value in decigrams by 0.0257205973. To reverse, multiply drams (apothecary/troy) by 38.879346.
How to use this converter
Type a value into the calculator. The result in drams (apothecary/troy) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Dram (apothecary/troy) to Decigram converter for the reverse direction.
Step-by-step: convert decigrams to drams (apothecary/troy)
- Write down the value in decigrams (dg).
- Multiply that value by the factor 0.0257205973.
- The product is the equivalent value in drams (apothecary/troy) (dr ap).
- To reverse, multiply the dram (apothecary/troy) value by 38.879346.
Worked examples
Example 1 — Convert 1 dg to dr ap:
1 × 0.0257205973 = 0.0257205973 dr ap
Example 2 — Convert 100 dg to dr ap:
100 × 0.0257205973 = 2.5720597255 dr ap
Real-world example — Packaging gauge
A 4-decigram plastic bag thickness is a common spec for grocery and freezer bags. Converting from decigrams to drams (apothecary/troy) is what packaging buyers do whenever they bridge US and metric supplier quotes.
4 dg × 0.0257205973 = 0.102882389 dr ap
Real-world example — Plastic film and laminate thickness
A 500-decigram sheet is a typical spec for ID-card laminates and film overlays. Converting to drams (apothecary/troy) aligns the value with the unit most CAD systems and material datasheets prefer.
500 dg × 0.0257205973 = 12.8602986275 dr ap
Decigram to Dram (apothecary/troy) conversion table
Standard reference values for converting decigrams to drams (apothecary/troy):
| Decigram [dg] | Dram (apothecary/troy) [dr ap] |
|---|---|
| 0.01 | 0.000257206 |
| 0.1 | 0.0025720597 |
| 1 | 0.0257205973 |
| 2 | 0.0514411945 |
| 3 | 0.0771617918 |
| 4 | 0.102882389 |
| 5 | 0.1286029863 |
| 10 | 0.2572059725 |
| 20 | 0.5144119451 |
| 30 | 0.7716179176 |
| 40 | 1.0288238902 |
| 50 | 1.2860298627 |
| 100 | 2.5720597255 |
| 500 | 12.8602986275 |
| 1000 | 25.7205972549 |
Frequently asked questions
How many drams (apothecary/troy) is 1 decigram?
How do I convert decigrams to drams (apothecary/troy)?
How do I convert drams (apothecary/troy) back to decigrams?
How many drams (apothecary/troy) is 100 decigrams?
Popular weight unit conversions
Convert Decigram to other weight units
Show all Decigram conversions
Metric / SI (17 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 dg = 0.0257205973 dr ap) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.