Microgram to Dram Converter
Convert Microgram (µg) to Dram (dr) instantly. 1 µg = 5.643834e-7 dr.
Mass Converter
26 units available
1 µg = 5.643834e-7 dr
Formula:
dr = µg × 5.643834e-7With your value: 1 µg = 5.643834e-7 dr
How big is that?
Everyday references on a logarithmic scale, all expressed in microgram so you can sanity-check the result.
Other Microgram to Dram conversions
Microgram to Dram Conversion Table
| Microgram (µg) | Dram (dr) |
|---|---|
| 0.5 | 2.821917e-7 |
| 1 | 5.643834e-7 |
| 2 | 1.128767e-6 |
| 5 | 2.821917e-6 |
| 10 | 5.643834e-6 |
| 15 | 8.465751e-6 |
| 20 | 1.128767e-5 |
| 25 | 1.410958e-5 |
| 50 | 2.821917e-5 |
| 100 | 5.643834e-5 |
| 250 | 0.000141 |
| 500 | 0.000282 |
| 1000 | 0.000564 |
Dram to Microgram Conversion Table
| Dram (dr) | Microgram (µg) |
|---|---|
| 0.5 | 885,922.597656 |
| 1 | 1,771,845.195313 |
| 2 | 3,543,690.390625 |
| 5 | 8,859,225.976563 |
| 10 | 17,718,451.953125 |
| 15 | 26,577,677.929688 |
| 20 | 35,436,903.90625 |
| 25 | 44,296,129.882813 |
| 50 | 88,592,259.765625 |
| 100 | 177,184,519.53125 |
| 250 | 442,961,298.828125 |
| 500 | 885,922,597.65625 |
| 1000 | 1,771,845,195.3125 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Microgram (µg)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Dram (dr)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Microgram to Dram
To convert from Microgram (µg) to Dram (dr), multiply the value by 5.643834e-7.
Formula: dr = µg × 5.643834e-7
Reverse: µg = dr × 1,771,845.1953125
Step-by-Step Example
- Start with your value in Microgram. For example: 5 µg
- Multiply by the conversion factor: 5 x 5.643834e-7
- The result is: 2.821917e-6 dr
About Microgram
The microgram (µg) equals one millionth of a gram. Vitamins, hormones and trace contaminants are dosed at this scale.
Fun Fact: Clinical writing spells out "microgram" rather than using µg to avoid dosing errors.
Common uses: pharmacology, vitamin dosing, toxicology.
About Dram
The dram (dr) is a unit of mass and weight. One dram equals 0.001771845195 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: mass calculations, engineering and science, education.
Frequently Asked Questions
How many Dram are in 1 Microgram?
There are exactly 5.643834e-7 Dram in 1 Microgram. This means the conversion factor from Microgram to Dram is 5.643834e-7.
What is the formula to convert Microgram to Dram?
The formula to convert Microgram to Dram is: dr = µg × 5.643834e-7. For example, to convert 10 Microgram to Dram, you would multiply 10 by 5.643834e-7.
What is a Microgram?
The microgram (µg) equals one millionth of a gram. Vitamins, hormones and trace contaminants are dosed at this scale.
What is a Dram?
The dram (dr) is a unit of mass and weight. One dram equals 0.001771845195 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Microgram?
The Microgram is commonly used in pharmacology, vitamin dosing, toxicology.
Related Mass Conversions
Cite this page
UnitConvertLab. (2026). Microgram to Dram converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/microgram-to-dram