Mass and Weight · Unit Converter

Convert Wey to Carbon-12 Atom Mass

Convert weys to carbon-12 atom mass instantly. 1 wey = 5.736354e+27 carbon-12 atom mass — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Carbon-12 Atom Mass to Wey 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

Avoirdupois

Wey

What is a wey?

The wey was an English bulk weight, here taken as 252 pounds (about 114.3 kg).

Origin of the wey

From Old English 'waege', a weighing or balance.

Where it is used

Obsolete English unit for wool, cheese, and salt.

When and where it was developed

Used in medieval and early-modern English trade.

Scientific / Atomic

Carbon-12 Atom Mass

What is a carbon-12 atom mass?

The mass of a single carbon-12 atom is exactly 12 u by definition, about 1.9926E-26 kg.

Origin of the carbon-12 atom mass

The reference nuclide that defines the unified atomic mass scale.

Where it is used

The defining standard for the atomic mass unit.

When and where it was developed

Chosen as the mass standard by IUPAC and IUPAP in 1960-1961.

Wey to Carbon-12 Atom 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 weys and carbon-12 atom mass:

1 wey = 5.736354e+27 C-12
1 C-12 = 1.743268e-28 wey

To convert weys to carbon-12 atom mass, multiply the value in weys by 5.736354e+27. To reverse, multiply carbon-12 atom mass by 1.743268e-28.

How to use this converter

Type a value into the calculator. The result in carbon-12 atom 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 Carbon-12 Atom Mass to Wey converter for the reverse direction.

Step-by-step: convert weys to carbon-12 atom mass

  1. Write down the value in weys (wey).
  2. Multiply that value by the factor 5.736354e+27.
  3. The product is the equivalent value in carbon-12 atom mass (C-12).
  4. To reverse, multiply the carbon-12 atom mass value by 1.743268e-28.

Worked examples

Example 1 — Convert 1 wey to C-12:
1 × 5.736354e+27 = 5.736354e+27 C-12

Example 2 — Convert 100 wey to C-12:
100 × 5.736354e+27 = 5.736354e+29 C-12

Wey to Carbon-12 Atom Mass conversion table

Standard reference values for converting weys to carbon-12 atom mass:

Wey [wey]Carbon-12 Atom Mass [C-12]
0.015.736354e+25
0.15.736354e+26
15.736354e+27
21.147271e+28
31.720906e+28
42.294542e+28
52.868177e+28
105.736354e+28
201.147271e+29
301.720906e+29
402.294542e+29
502.868177e+29
1005.736354e+29
5002.868177e+30
10005.736354e+30

Frequently asked questions

How many carbon-12 atom mass is 1 wey?
1 wey equals 5.736354e+27 carbon-12 atom mass.
How do I convert weys to carbon-12 atom mass?
Multiply the value in weys by 5.736354e+27 to get carbon-12 atom mass.
How do I convert carbon-12 atom mass back to weys?
Multiply the value in carbon-12 atom mass by 1.743268e-28, or use the Carbon-12 Atom Mass to Wey converter.
How many carbon-12 atom mass is 100 weys?
100 weys equals 5.736354e+29 carbon-12 atom mass, because 100 × 5.736354e+27 = 5.736354e+29.

Convert Wey to other weight units

Show all Wey conversions
Metric / SI (18 units)
Wey to Attogram (ag) Wey to Femtogram (fg) Wey to Picogram (pg) Wey to Nanogram (ng) Wey to Microgram (µg) Wey to Milligram (mg) Wey to Centigram (cg) Wey to Decigram (dg) Wey to Gram (g) Wey to Dekagram (dag) Wey to Hectogram (hg) Wey to Kilogram (kg) Wey to Quintal (metric) (q) Wey to Metric Ton (t) Wey to Gigagram (Gg) Wey to Teragram (Tg) Wey to Petagram (Pg) Wey to Exagram (Eg)
Avoirdupois (14 units)
Wey to Grain (gr) Wey to Dram (avoirdupois) (dr) Wey to Ounce (oz) Wey to Pound (lb) Wey to Clove (clove) Wey to Stone (US) (st) Wey to Stone (UK) (st) Wey to Quarter (US) (qr) Wey to Quarter (UK) (qr) Wey to Hundredweight (US) (cwt) Wey to Hundredweight (UK) (cwt) Wey to Kilopound (kip) (kip) Wey to Ton (short, US) (sh tn) Wey to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Wey to Point (1/100 carat) (pt) Wey to Carat (metric) (ct) Wey to Scruple (apothecary) (s ap) Wey to Pennyweight (dwt) Wey to Momme (mom) Wey to Mace (mace) Wey to Dram (apothecary/troy) (dr ap) Wey to Troy Ounce (oz t) Wey to Tael (tael) Wey to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Wey to Ratti (ratti) Wey to Masha (masha) Wey to Tola (tola) Wey to Chittack (Chatank) (chittack) Wey to Seer (Ser) (seer) Wey to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Wey to Electron Mass (rest) (me) Wey to MeV/c2 (MeV/c²) Wey to Muon Mass (mµ) Wey to Atomic Mass Unit (u) Wey to Proton Mass (mp) Wey to Neutron Mass (mn) Wey to Deuteron Mass (md) Wey to Carbon-12 Atom Mass (C-12) Wey to Planck Mass (mP)
Astronomical (4 units)
Wey to Lunar Mass (Moon) (M☾) Wey to Earth's Mass (M⊕) Wey to Jupiter Mass (MJ) Wey to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Wey to Lepton (Biblical Roman) (lepton) Wey to Quadrans (Biblical Roman) (quadrans) Wey to Assarion (Biblical Roman) (assarion) Wey to Gerah (Biblical Hebrew) (gerah) Wey to Drachma (Biblical Greek) (drachma) Wey to Denarius (Biblical Roman) (denarius) Wey to Bekan (Biblical Hebrew) (bekah) Wey to Didrachma (Biblical Greek) (didrachma) Wey to Shekel (Biblical Hebrew) (shekel) Wey to Tetradrachma (Biblical Greek) (tetra) Wey to Mina (Biblical Greek) (mina) Wey to Mina (Biblical Hebrew) (mina) Wey to Talent (Biblical Greek) (talent) Wey to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Wey to Poundal (pdl) Wey to Ton (assay) (US) (AT) Wey to Ton (assay) (UK) (AT) Wey to Kilogram-force square second/meter (hyl) Wey to Slug (slug)

Sources & references

Conversion factor (1 wey = 5.736354e+27 C-12) verified against the following authoritative sources:

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