Convert Atomic Mass Unit to MeV/c2
Convert atomic mass unit to mev/c2 instantly. 1 atomic mass unit = 931.4947390585 mev/c2 — use the live calculator, the exact formula, a conversion table and worked examples. Also check the MeV/c2 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.
MeV/c2
MeV/c^2 expresses mass through mass-energy equivalence, E = mc^2; 1 MeV/c^2 is about 1.783E-30 kg.
Derived from Einstein's mass-energy relation, convenient for particle masses.
Particle physics, where masses are stated in MeV/c^2 or GeV/c^2.
Came into use with relativistic particle physics in the 20th century.
Atomic Mass Unit to MeV/c2 conversion formula
The relationship between atomic mass unit and mev/c2:
To convert atomic mass unit to mev/c2, multiply the value in atomic mass unit by 931.4947390585. To reverse, multiply mev/c2 by 0.0010735434.
How to use this converter
Type a value into the calculator. The result in mev/c2 updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the MeV/c2 to Atomic Mass Unit converter for the reverse direction.
Step-by-step: convert atomic mass unit to mev/c2
- Write down the value in atomic mass unit (u).
- Multiply that value by the factor 931.4947390585.
- The product is the equivalent value in mev/c2 (MeV/c²).
- To reverse, multiply the mev/c2 value by 0.0010735434.
Worked examples
Example 1 — Convert 1 u to MeV/c²:
1 × 931.4947390585 = 931.4947390585 MeV/c²
Example 2 — Convert 100 u to MeV/c²:
100 × 931.4947390585 = 93149.4739058542 MeV/c²
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 mev/c2 for direct comparison with another instrument's calibration data sheet.
800 u × 931.4947390585 = 745195.7912468337 MeV/c²
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 × 931.4947390585 = 1862.9894781171 MeV/c²
Atomic Mass Unit to MeV/c2 conversion table
Standard reference values for converting atomic mass unit to mev/c2:
| Atomic Mass Unit [u] | MeV/c2 [MeV/c²] |
|---|---|
| 0.01 | 9.3149473906 |
| 0.1 | 93.1494739059 |
| 1 | 931.4947390585 |
| 2 | 1862.9894781171 |
| 3 | 2794.4842171756 |
| 4 | 3725.9789562342 |
| 5 | 4657.4736952927 |
| 10 | 9314.9473905854 |
| 20 | 18629.8947811708 |
| 30 | 27944.8421717563 |
| 40 | 37259.7895623417 |
| 50 | 46574.7369529271 |
| 100 | 93149.4739058542 |
| 500 | 465747.3695292711 |
| 1000 | 931494.7390585422 |
Frequently asked questions
How many mev/c2 is 1 atomic mass unit?
How do I convert atomic mass unit to mev/c2?
How do I convert mev/c2 back to atomic mass unit?
How many mev/c2 is 100 atomic mass unit?
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Sources & references
Conversion factor (1 u = 931.4947390585 MeV/c²) 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.