Convert Microgram to Decigram
Convert micrograms to decigrams instantly. 1 microgram = 1e-5 decigram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Decigram to Microgram converter for the reverse conversion.
Units explained
Microgram
A microgram (ug) equals 10^-9 kilogram, or one-millionth of a gram.
From the SI prefix 'micro-' (from Greek 'mikros', small).
Trace nutrients, potent drug doses, and environmental contaminant levels.
The micro- prefix was incorporated into the SI in 1960.
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.
Microgram to Decigram conversion formula
The relationship between micrograms and decigrams:
To convert micrograms to decigrams, multiply the value in micrograms by 1e-5. To reverse, multiply decigrams by 100000.
How to use this converter
Type a value into the calculator. The result in decigrams updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Decigram to Microgram converter for the reverse direction.
Step-by-step: convert micrograms to decigrams
- Write down the value in micrograms (µg).
- Multiply that value by the factor 1e-5.
- The product is the equivalent value in decigrams (dg).
- To reverse, multiply the decigram value by 100000.
Worked examples
Example 1 — Convert 1 µg to dg:
1 × 1e-5 = 1e-5 dg
Example 2 — Convert 100 µg to dg:
100 × 1e-5 = 0.001 dg
Real-world example — Sub-visible-light wavelength
500 micrograms (the green-yellow visible band) equals 0.5 decigrams — the canonical conversion in optics between wavelength specifications and micron-scale lens-coating thicknesses.
500 µg × 1e-5 = 0.005 dg
Real-world example — Spanning sub-micron to micron scale
Crossing from micrograms to decigrams is the everyday workflow of microscopy and semiconductor engineering — a measurement of 1000 micrograms translates to a much more compact value in decigrams that fits the scale of biological cells and process nodes.
1000 µg × 1e-5 = 0.01 dg
Microgram to Decigram conversion table
Standard reference values for converting micrograms to decigrams:
| Microgram [µg] | Decigram [dg] |
|---|---|
| 0.01 | 1e-7 |
| 0.1 | 1e-6 |
| 1 | 1e-5 |
| 2 | 2e-5 |
| 3 | 3e-5 |
| 4 | 4e-5 |
| 5 | 5e-5 |
| 10 | 0.0001 |
| 20 | 0.0002 |
| 30 | 0.0003 |
| 40 | 0.0004 |
| 50 | 0.0005 |
| 100 | 0.001 |
| 500 | 0.005 |
| 1000 | 0.01 |
Frequently asked questions
How many decigrams is 1 microgram?
How do I convert micrograms to decigrams?
How do I convert decigrams back to micrograms?
How many decigrams is 100 micrograms?
Popular weight unit conversions
Convert Microgram to other weight units
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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 µg = 1e-5 dg) 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.