Convert Microgram to Nanogram
Convert micrograms to nanograms instantly. 1 microgram = 1000 nanogram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Nanogram 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.
Nanogram
A nanogram (ng) equals 10^-12 kilogram.
From the SI prefix 'nano-' (from Greek 'nanos', dwarf).
Molecular biology, forensics, and toxicology.
The nano- prefix entered the SI in 1960.
Microgram to Nanogram conversion formula
The relationship between micrograms and nanograms:
To convert micrograms to nanograms, multiply the value in micrograms by 1000. To reverse, multiply nanograms by 0.001.
How to use this converter
Type a value into the calculator. The result in nanograms updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Nanogram to Microgram converter for the reverse direction.
Step-by-step: convert micrograms to nanograms
- Write down the value in micrograms (µg).
- Multiply that value by the factor 1000.
- The product is the equivalent value in nanograms (ng).
- To reverse, multiply the nanogram value by 0.001.
Worked examples
Example 1 — Convert 1 µg to ng:
1 × 1000 = 1000 ng
Example 2 — Convert 100 µg to ng:
100 × 1000 = 100000 ng
Real-world example — Wavelengths across the spectrum
Optical and atomic-scale phenomena are routinely cross-converted between sub-micron units. A photon of wavelength 800 micrograms can be re-expressed in nanograms for direct comparison with another instrument's calibration data sheet.
800 µg × 1000 = 800000.0000000001 ng
Real-world example — Molecular dimensions
The diameter of small molecular structures (around 2 micrograms) is often converted into related sub-micron units when comparing measurements across different microscopy techniques or imaging modalities.
2 µg × 1000 = 2000 ng
Microgram to Nanogram conversion table
Standard reference values for converting micrograms to nanograms:
| Microgram [µg] | Nanogram [ng] |
|---|---|
| 0.01 | 10 |
| 0.1 | 100 |
| 1 | 1000 |
| 2 | 2000 |
| 3 | 3000 |
| 4 | 4000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 30 | 30000 |
| 40 | 40000 |
| 50 | 50000 |
| 100 | 100000 |
| 500 | 500000.0000000001 |
| 1000 | 1000000.0000000001 |
Frequently asked questions
How many nanograms is 1 microgram?
How do I convert micrograms to nanograms?
How do I convert nanograms back to micrograms?
How many nanograms is 100 micrograms?
Popular weight unit conversions
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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 = 1000 ng) 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 Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.