Mass and Weight · Unit Converter

Convert Electron Mass (rest) to Neutron Mass

Convert electron mass (rest) to neutron mass instantly. 1 electron mass (rest) = 0.0005438673 neutron mass — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Neutron Mass to Electron Mass (rest) converter for the reverse conversion.

Written by Sunith Babu L, Ph.D., Lead Engineer Reviewed by Dr. Ashok Kumar K, Ph.D.
Mass and Weight category 2 min read Published Last reviewed Updated

Units explained

Scientific / Atomic

Electron Mass (rest)

What is a electron mass (rest)?

The electron rest mass is about 9.109E-31 kg.

Origin of the electron mass (rest)

The mass of the electron, the lightest charged elementary particle.

Where it is used

Atomic and particle physics.

When and where it was developed

Quantified after J. J. Thomson identified the electron in 1897.

Scientific / Atomic

Neutron Mass

What is a neutron mass?

The neutron rest mass is about 1.6749E-27 kg, slightly more than the proton.

Origin of the neutron mass

The mass of the neutron, the neutral nucleon.

Where it is used

Nuclear physics and reactor science.

When and where it was developed

Determined after James Chadwick discovered the neutron in 1932.

Electron Mass (rest) 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 electron mass (rest) and neutron mass:

1 me = 0.0005438673 mn
1 mn = 1838.6836606628 me

To convert electron mass (rest) to neutron mass, multiply the value in electron mass (rest) by 0.0005438673. To reverse, multiply neutron mass by 1838.6836606628.

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 Electron Mass (rest) converter for the reverse direction.

Step-by-step: convert electron mass (rest) to neutron mass

  1. Write down the value in electron mass (rest) (me).
  2. Multiply that value by the factor 0.0005438673.
  3. The product is the equivalent value in neutron mass (mn).
  4. To reverse, multiply the neutron mass value by 1838.6836606628.

Worked examples

Example 1 — Convert 1 me to mn:
1 × 0.0005438673 = 0.0005438673 mn

Example 2 — Convert 100 me to mn:
100 × 0.0005438673 = 0.0543867345 mn

Real-world example — Molecular dimensions

The diameter of small molecular structures (around 2 electron mass (rest)) is often converted into related sub-micron units when comparing measurements across different microscopy techniques or imaging modalities.

2 me × 0.0005438673 = 0.0010877347 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 electron mass (rest) can be re-expressed in neutron mass for direct comparison with another instrument's calibration data sheet.

800 me × 0.0005438673 = 0.4350938756 mn

Electron Mass (rest) to Neutron Mass conversion table

Standard reference values for converting electron mass (rest) to neutron mass:

Electron Mass (rest) [me]Neutron Mass [mn]
0.015.438673e-6
0.15.438673e-5
10.0005438673
20.0010877347
30.001631602
40.0021754694
50.0027193367
100.0054386734
200.0108773469
300.0163160203
400.0217546938
500.0271933672
1000.0543867345
5000.2719336723
10000.5438673446

Frequently asked questions

How many neutron mass is 1 electron mass (rest)?
1 electron mass (rest) equals 0.0005438673 neutron mass.
How do I convert electron mass (rest) to neutron mass?
Multiply the value in electron mass (rest) by 0.0005438673 to get neutron mass.
How do I convert neutron mass back to electron mass (rest)?
Multiply the value in neutron mass by 1838.6836606628, or use the Neutron Mass to Electron Mass (rest) converter.
How many neutron mass is 100 electron mass (rest)?
100 electron mass (rest) equals 0.0543867345 neutron mass, because 100 × 0.0005438673 = 0.0543867345.

Convert Electron Mass (rest) to other weight units

Show all Electron Mass (rest) conversions
Metric / SI (18 units)
Electron Mass (rest) to Attogram (ag) Electron Mass (rest) to Femtogram (fg) Electron Mass (rest) to Picogram (pg) Electron Mass (rest) to Nanogram (ng) Electron Mass (rest) to Microgram (µg) Electron Mass (rest) to Milligram (mg) Electron Mass (rest) to Centigram (cg) Electron Mass (rest) to Decigram (dg) Electron Mass (rest) to Gram (g) Electron Mass (rest) to Dekagram (dag) Electron Mass (rest) to Hectogram (hg) Electron Mass (rest) to Kilogram (kg) Electron Mass (rest) to Quintal (metric) (q) Electron Mass (rest) to Metric Ton (t) Electron Mass (rest) to Gigagram (Gg) Electron Mass (rest) to Teragram (Tg) Electron Mass (rest) to Petagram (Pg) Electron Mass (rest) to Exagram (Eg)
Avoirdupois (15 units)
Electron Mass (rest) to Grain (gr) Electron Mass (rest) to Dram (avoirdupois) (dr) Electron Mass (rest) to Ounce (oz) Electron Mass (rest) to Pound (lb) Electron Mass (rest) to Clove (clove) Electron Mass (rest) to Stone (US) (st) Electron Mass (rest) to Stone (UK) (st) Electron Mass (rest) to Quarter (US) (qr) Electron Mass (rest) to Quarter (UK) (qr) Electron Mass (rest) to Hundredweight (US) (cwt) Electron Mass (rest) to Hundredweight (UK) (cwt) Electron Mass (rest) to Wey (wey) Electron Mass (rest) to Kilopound (kip) (kip) Electron Mass (rest) to Ton (short, US) (sh tn) Electron Mass (rest) to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Electron Mass (rest) to Point (1/100 carat) (pt) Electron Mass (rest) to Carat (metric) (ct) Electron Mass (rest) to Scruple (apothecary) (s ap) Electron Mass (rest) to Pennyweight (dwt) Electron Mass (rest) to Momme (mom) Electron Mass (rest) to Mace (mace) Electron Mass (rest) to Dram (apothecary/troy) (dr ap) Electron Mass (rest) to Troy Ounce (oz t) Electron Mass (rest) to Tael (tael) Electron Mass (rest) to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Electron Mass (rest) to Ratti (ratti) Electron Mass (rest) to Masha (masha) Electron Mass (rest) to Tola (tola) Electron Mass (rest) to Chittack (Chatank) (chittack) Electron Mass (rest) to Seer (Ser) (seer) Electron Mass (rest) to Maund (Mann) (maund)
Scientific / Atomic (8 units)
Electron Mass (rest) to MeV/c2 (MeV/c²) Electron Mass (rest) to Muon Mass (mµ) Electron Mass (rest) to Atomic Mass Unit (u) Electron Mass (rest) to Proton Mass (mp) Electron Mass (rest) to Neutron Mass (mn) Electron Mass (rest) to Deuteron Mass (md) Electron Mass (rest) to Carbon-12 Atom Mass (C-12) Electron Mass (rest) to Planck Mass (mP)
Astronomical (4 units)
Electron Mass (rest) to Lunar Mass (Moon) (M☾) Electron Mass (rest) to Earth's Mass (M⊕) Electron Mass (rest) to Jupiter Mass (MJ) Electron Mass (rest) to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Electron Mass (rest) to Lepton (Biblical Roman) (lepton) Electron Mass (rest) to Quadrans (Biblical Roman) (quadrans) Electron Mass (rest) to Assarion (Biblical Roman) (assarion) Electron Mass (rest) to Gerah (Biblical Hebrew) (gerah) Electron Mass (rest) to Drachma (Biblical Greek) (drachma) Electron Mass (rest) to Denarius (Biblical Roman) (denarius) Electron Mass (rest) to Bekan (Biblical Hebrew) (bekah) Electron Mass (rest) to Didrachma (Biblical Greek) (didrachma) Electron Mass (rest) to Shekel (Biblical Hebrew) (shekel) Electron Mass (rest) to Tetradrachma (Biblical Greek) (tetra) Electron Mass (rest) to Mina (Biblical Greek) (mina) Electron Mass (rest) to Mina (Biblical Hebrew) (mina) Electron Mass (rest) to Talent (Biblical Greek) (talent) Electron Mass (rest) to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Electron Mass (rest) to Poundal (pdl) Electron Mass (rest) to Ton (assay) (US) (AT) Electron Mass (rest) to Ton (assay) (UK) (AT) Electron Mass (rest) to Kilogram-force square second/meter (hyl) Electron Mass (rest) to Slug (slug)

Sources & references

Conversion factor (1 me = 0.0005438673 mn) verified against the following authoritative sources:

Results are provided for general reference. Verify critical measurements against an authoritative standard.