Microgram to Pennyweight Converter
Convert Microgram (µg) to Pennyweight (dwt) instantly. 1 µg = 6.430149e-7 dwt.
Mass Converter
26 units available
1 µg = 6.430149e-7 dwt
Formula:
dwt = µg × 6.430149e-7With your value: 1 µg = 6.430149e-7 dwt
How big is that?
Everyday references on a logarithmic scale, all expressed in microgram so you can sanity-check the result.
Other Microgram to Pennyweight conversions
Microgram to Pennyweight Conversion Table
| Microgram (µg) | Pennyweight (dwt) |
|---|---|
| 0.5 | 3.215075e-7 |
| 1 | 6.430149e-7 |
| 2 | 1.286030e-6 |
| 5 | 3.215075e-6 |
| 10 | 6.430149e-6 |
| 15 | 9.645224e-6 |
| 20 | 1.286030e-5 |
| 25 | 1.607537e-5 |
| 50 | 3.215075e-5 |
| 100 | 6.430149e-5 |
| 250 | 0.000161 |
| 500 | 0.000322 |
| 1000 | 0.000643 |
Pennyweight to Microgram Conversion Table
| Pennyweight (dwt) | Microgram (µg) |
|---|---|
| 0.5 | 777,586.92 |
| 1 | 1,555,173.84 |
| 2 | 3,110,347.68 |
| 5 | 7,775,869.2 |
| 10 | 15,551,738.4 |
| 15 | 23,327,607.6 |
| 20 | 31,103,476.8 |
| 25 | 38,879,346 |
| 50 | 77,758,692 |
| 100 | 155,517,384 |
| 250 | 388,793,460 |
| 500 | 777,586,920 |
| 1000 | 1,555,173,840 |
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
Pennyweight (dwt)
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 Pennyweight
To convert from Microgram (µg) to Pennyweight (dwt), multiply the value by 6.430149e-7.
Formula: dwt = µg × 6.430149e-7
Reverse: µg = dwt × 1,555,173.84
Step-by-Step Example
- Start with your value in Microgram. For example: 5 µg
- Multiply by the conversion factor: 5 x 6.430149e-7
- The result is: 3.215075e-6 dwt
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 Pennyweight
The pennyweight (dwt) equals 1/20 of a troy ounce, about 1.555 grams. Jewellers still price scrap gold by the pennyweight.
Common uses: jewellery trade, gold scrap, assaying.
Frequently Asked Questions
How many Pennyweight are in 1 Microgram?
There are exactly 6.430149e-7 Pennyweight in 1 Microgram. This means the conversion factor from Microgram to Pennyweight is 6.430149e-7.
What is the formula to convert Microgram to Pennyweight?
The formula to convert Microgram to Pennyweight is: dwt = µg × 6.430149e-7. For example, to convert 10 Microgram to Pennyweight, you would multiply 10 by 6.430149e-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 Pennyweight?
The pennyweight (dwt) equals 1/20 of a troy ounce, about 1.555 grams. Jewellers still price scrap gold by the pennyweight.
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 Pennyweight converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/microgram-to-pennyweight