Convert Wey to Ton (assay) (US)
Convert weys to tons (assay) (us) instantly. 1 wey = 3919.03762891 ton (assay) (us) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ton (assay) (US) to Wey converter for the reverse conversion.
Units explained
Wey
The wey was an English bulk weight, here taken as 252 pounds (about 114.3 kg).
From Old English 'waege', a weighing or balance.
Obsolete English unit for wool, cheese, and salt.
Used in medieval and early-modern English trade.
Ton (assay) (US)
The assay ton (US) equals about 29.167 grams, a mining-assay convenience unit.
Devised so an assay sample's metal in milligrams reads as troy ounces per short ton.
Ore assaying and metallurgy.
Adopted in assay laboratories to simplify ore-grade calculation.
Wey to Ton (assay) (US) 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 tons (assay) (us):
To convert weys to tons (assay) (us), multiply the value in weys by 3919.03762891. To reverse, multiply tons (assay) (us) by 0.0002551647.
How to use this converter
Type a value into the calculator. The result in tons (assay) (us) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Ton (assay) (US) to Wey converter for the reverse direction.
Step-by-step: convert weys to tons (assay) (us)
- Write down the value in weys (wey).
- Multiply that value by the factor 3919.03762891.
- The product is the equivalent value in tons (assay) (us) (AT).
- To reverse, multiply the ton (assay) (us) value by 0.0002551647.
Worked examples
Example 1 — Convert 1 wey to AT:
1 × 3919.03762891 = 3919.03762891 AT
Example 2 — Convert 100 wey to AT:
100 × 3919.03762891 = 391903.7628909986 AT
Wey to Ton (assay) (US) conversion table
Standard reference values for converting weys to tons (assay) (us):
| Wey [wey] | Ton (assay) (US) [AT] |
|---|---|
| 0.01 | 39.1903762891 |
| 0.1 | 391.903762891 |
| 1 | 3919.03762891 |
| 2 | 7838.07525782 |
| 3 | 11757.11288673 |
| 4 | 15676.1505156399 |
| 5 | 19595.1881445499 |
| 10 | 39190.3762890999 |
| 20 | 78380.7525781997 |
| 30 | 117571.1288672996 |
| 40 | 156761.5051563994 |
| 50 | 195951.8814454993 |
| 100 | 391903.7628909986 |
| 500 | 1959518.8144549928 |
| 1000 | 3919037.6289099855 |
Frequently asked questions
How many tons (assay) (us) is 1 wey?
How do I convert weys to tons (assay) (us)?
How do I convert tons (assay) (us) back to weys?
How many tons (assay) (us) is 100 weys?
Popular weight unit conversions
Convert Wey to other weight units
Show all Wey conversions
Metric / SI (18 units)
Avoirdupois (14 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 wey = 3919.03762891 AT) 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.