Convert MeV/c2 to Neutron Mass
Convert mev/c2 to neutron mass instantly. 1 mev/c2 = 0.0010643211 neutron mass — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Neutron Mass to MeV/c2 converter for the reverse conversion.
Units explained
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.
Neutron Mass
The neutron rest mass is about 1.6749E-27 kg, slightly more than the proton.
The mass of the neutron, the neutral nucleon.
Nuclear physics and reactor science.
Determined after James Chadwick discovered the neutron in 1932.
MeV/c2 to Neutron Mass conversion formula
Note: this conversion uses a generally accepted modern value. Historical and regional definitions of this unit varied across times and places.
The relationship between mev/c2 and neutron mass:
To convert mev/c2 to neutron mass, multiply the value in mev/c2 by 0.0010643211. To reverse, multiply neutron mass by 939.5660395326.
How to use this converter
Type a value into the calculator. The result in neutron mass updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Neutron Mass to MeV/c2 converter for the reverse direction.
Step-by-step: convert mev/c2 to neutron mass
- Write down the value in mev/c2 (MeV/c²).
- Multiply that value by the factor 0.0010643211.
- The product is the equivalent value in neutron mass (mn).
- To reverse, multiply the neutron mass value by 939.5660395326.
Worked examples
Example 1 — Convert 1 MeV/c² to mn:
1 × 0.0010643211 = 0.0010643211 mn
Example 2 — Convert 100 MeV/c² to mn:
100 × 0.0010643211 = 0.1064321142 mn
Real-world example — Molecular dimensions
The diameter of small molecular structures (around 2 mev/c2) is often converted into related sub-micron units when comparing measurements across different microscopy techniques or imaging modalities.
2 MeV/c² × 0.0010643211 = 0.0021286423 mn
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 mev/c2 can be re-expressed in neutron mass for direct comparison with another instrument's calibration data sheet.
800 MeV/c² × 0.0010643211 = 0.8514569134 mn
MeV/c2 to Neutron Mass conversion table
Standard reference values for converting mev/c2 to neutron mass:
| MeV/c2 [MeV/c²] | Neutron Mass [mn] |
|---|---|
| 0.01 | 1.064321e-5 |
| 0.1 | 0.0001064321 |
| 1 | 0.0010643211 |
| 2 | 0.0021286423 |
| 3 | 0.0031929634 |
| 4 | 0.0042572846 |
| 5 | 0.0053216057 |
| 10 | 0.0106432114 |
| 20 | 0.0212864228 |
| 30 | 0.0319296343 |
| 40 | 0.0425728457 |
| 50 | 0.0532160571 |
| 100 | 0.1064321142 |
| 500 | 0.5321605709 |
| 1000 | 1.0643211418 |
Frequently asked questions
How many neutron mass is 1 mev/c2?
How do I convert mev/c2 to neutron mass?
How do I convert neutron mass back to mev/c2?
How many neutron mass is 100 mev/c2?
Popular weight unit conversions
Convert MeV/c2 to other weight units
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Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (8 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 MeV/c² = 0.0010643211 mn) 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.