Convert Atomic Mass Unit to Nanogram
Convert atomic mass unit to nanograms instantly. 1 atomic mass unit = 1.66054e-15 nanogram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Nanogram to Atomic Mass Unit converter for the reverse conversion.
Units explained
Atomic Mass Unit
One unified atomic mass unit (u) is defined as 1/12 the mass of a carbon-12 atom, about 1.6605E-27 kg.
Introduced to give atomic and molecular masses convenient numerical values.
Atomic, molecular, and nuclear physics and chemistry.
The unified (carbon-12) scale was adopted by IUPAC and IUPAP in 1960-1961.
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.
Atomic Mass Unit to Nanogram conversion formula
The relationship between atomic mass unit and nanograms:
To convert atomic mass unit to nanograms, multiply the value in atomic mass unit by 1.66054e-15. To reverse, multiply nanograms by 6.022137e+14.
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 Atomic Mass Unit converter for the reverse direction.
Step-by-step: convert atomic mass unit to nanograms
- Write down the value in atomic mass unit (u).
- Multiply that value by the factor 1.66054e-15.
- The product is the equivalent value in nanograms (ng).
- To reverse, multiply the nanogram value by 6.022137e+14.
Worked examples
Example 1 — Convert 1 u to ng:
1 × 1.66054e-15 = 1.66054e-15 ng
Example 2 — Convert 100 u to ng:
100 × 1.66054e-15 = 1.66054e-13 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 atomic mass unit can be re-expressed in nanograms for direct comparison with another instrument's calibration data sheet.
800 u × 1.66054e-15 = 1.328432e-12 ng
Real-world example — Molecular dimensions
The diameter of small molecular structures (around 2 atomic mass unit) is often converted into related sub-micron units when comparing measurements across different microscopy techniques or imaging modalities.
2 u × 1.66054e-15 = 3.32108e-15 ng
Atomic Mass Unit to Nanogram conversion table
Standard reference values for converting atomic mass unit to nanograms:
| Atomic Mass Unit [u] | Nanogram [ng] |
|---|---|
| 0.01 | 1.66054e-17 |
| 0.1 | 1.66054e-16 |
| 1 | 1.66054e-15 |
| 2 | 3.32108e-15 |
| 3 | 4.981621e-15 |
| 4 | 6.642161e-15 |
| 5 | 8.302701e-15 |
| 10 | 1.66054e-14 |
| 20 | 3.32108e-14 |
| 30 | 4.981621e-14 |
| 40 | 6.642161e-14 |
| 50 | 8.302701e-14 |
| 100 | 1.66054e-13 |
| 500 | 8.302701e-13 |
| 1000 | 1.66054e-12 |
Frequently asked questions
How many nanograms is 1 atomic mass unit?
How do I convert atomic mass unit to nanograms?
How do I convert nanograms back to atomic mass unit?
How many nanograms is 100 atomic mass unit?
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Sources & references
Conversion factor (1 u = 1.66054e-15 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.