Convert Ton (assay) (US) to Ton (short, US)
Convert tons (assay) (us) to tons (short, us) instantly. 1 ton (assay) (us) = 3.215075e-5 ton (short, us) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ton (short, US) to Ton (assay) (US) converter for the reverse conversion.
Units explained
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.
Ton (short, US)
The short (US) ton equals 2,000 pounds, about 907 kilograms.
The American ton, equal to 20 short hundredweight.
US industry, mining, and commodity output.
Standardized within US customary units.
Ton (assay) (US) to Ton (short, US) conversion formula
The relationship between tons (assay) (us) and tons (short, us):
To convert tons (assay) (us) to tons (short, us), multiply the value in tons (assay) (us) by 3.215075e-5. To reverse, multiply tons (short, us) by 31103.4732453173.
How to use this converter
Type a value into the calculator. The result in tons (short, 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 (short, US) to Ton (assay) (US) converter for the reverse direction.
Step-by-step: convert tons (assay) (us) to tons (short, us)
- Write down the value in tons (assay) (us) (AT).
- Multiply that value by the factor 3.215075e-5.
- The product is the equivalent value in tons (short, us) (sh tn).
- To reverse, multiply the ton (short, us) value by 31103.4732453173.
Worked examples
Example 1 — Convert 1 AT to sh tn:
1 × 3.215075e-5 = 3.215075e-5 sh tn
Example 2 — Convert 100 AT to sh tn:
100 × 3.215075e-5 = 0.003215075 sh tn
Real-world example — Postcard and small-object dimensions
A postcard is about 5 tons (assay) (us) wide. Converting to tons (short, us) is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 AT × 3.215075e-5 = 0.0001607538 sh tn
Real-world example — Ruler-scale measurements
A 30-ton (assay) (us) school ruler converts cleanly to tons (short, us) — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 AT × 3.215075e-5 = 0.0009645225 sh tn
Real-world example — Hardware-scale dimensions
A 10-ton (assay) (us) fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between tons (assay) (us) and tons (short, us) daily when mixing metric and imperial tools.
10 AT × 3.215075e-5 = 0.0003215075 sh tn
Ton (assay) (US) to Ton (short, US) conversion table
Standard reference values for converting tons (assay) (us) to tons (short, us):
| Ton (assay) (US) [AT] | Ton (short, US) [sh tn] |
|---|---|
| 0.01 | 3.215075e-7 |
| 0.1 | 3.215075e-6 |
| 1 | 3.215075e-5 |
| 2 | 6.43015e-5 |
| 3 | 9.645225e-5 |
| 4 | 0.000128603 |
| 5 | 0.0001607538 |
| 10 | 0.0003215075 |
| 20 | 0.000643015 |
| 30 | 0.0009645225 |
| 40 | 0.00128603 |
| 50 | 0.0016075375 |
| 100 | 0.003215075 |
| 500 | 0.0160753751 |
| 1000 | 0.0321507502 |
Frequently asked questions
How many tons (short, us) is 1 ton (assay) (us)?
How do I convert tons (assay) (us) to tons (short, us)?
How do I convert tons (short, us) back to tons (assay) (us)?
How many tons (short, us) is 100 tons (assay) (us)?
Popular weight unit conversions
Convert Ton (assay) (US) to other weight units
Show all Ton (assay) (US) conversions
Metric / SI (18 units)
Avoirdupois (15 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 AT = 3.215075e-5 sh tn) 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.