Convert Ton (assay) (US) to Kilogram
Convert tons (assay) (us) to kilograms instantly. 1 ton (assay) (us) = 0.02916667 kilogram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Kilogram 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.
Kilogram
The kilogram (kg) is the SI base unit of mass, defined by fixing the Planck constant h at 6.62607015E-34 J s.
From Greek 'khilioi' (thousand) plus 'gramma' (small weight).
The worldwide base unit of mass in science, commerce, and everyday life.
Adopted in 1795; redefined through the Planck constant on 20 May 2019.
Ton (assay) (US) to Kilogram conversion formula
The relationship between tons (assay) (us) and kilograms:
To convert tons (assay) (us) to kilograms, multiply the value in tons (assay) (us) by 0.02916667. To reverse, multiply kilograms by 34.2857103673.
How to use this converter
Type a value into the calculator. The result in kilograms updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Kilogram to Ton (assay) (US) converter for the reverse direction.
Step-by-step: convert tons (assay) (us) to kilograms
- Write down the value in tons (assay) (us) (AT).
- Multiply that value by the factor 0.02916667.
- The product is the equivalent value in kilograms (kg).
- To reverse, multiply the kilogram value by 34.2857103673.
Worked examples
Example 1 — Convert 1 AT to kg:
1 × 0.02916667 = 0.02916667 kg
Example 2 — Convert 100 AT to kg:
100 × 0.02916667 = 2.916667 kg
Real-world example — Children's height milestones
A 150-ton (assay) (us)-tall child measures a value in kilograms that's commonly used for theme-park ride height requirements when travelling between countries that use different measurement units.
150 AT × 0.02916667 = 4.3750005 kg
Real-world example — Body height conversion
You enter your height as 180 tons (assay) (us) into an international job or visa application. The form then asks for the same value in kilograms — converting between these adjacent units is one of the most-used length conversions globally.
180 AT × 0.02916667 = 5.2500006 kg
Real-world example — Furniture and large objects
A 72-ton (assay) (us) piece of furniture converts to a value in kilograms that's easier to mentally compare with room dimensions. This is the typical workflow when shopping internationally and product specs use a different unit than your room measurements.
72 AT × 0.02916667 = 2.10000024 kg
Ton (assay) (US) to Kilogram conversion table
Standard reference values for converting tons (assay) (us) to kilograms:
| Ton (assay) (US) [AT] | Kilogram [kg] |
|---|---|
| 0.01 | 0.0002916667 |
| 0.1 | 0.002916667 |
| 1 | 0.02916667 |
| 2 | 0.05833334 |
| 3 | 0.08750001 |
| 4 | 0.11666668 |
| 5 | 0.14583335 |
| 10 | 0.2916667 |
| 20 | 0.5833334 |
| 30 | 0.8750001 |
| 40 | 1.1666668 |
| 50 | 1.4583335 |
| 100 | 2.916667 |
| 500 | 14.583335 |
| 1000 | 29.16667 |
Frequently asked questions
How many kilograms is 1 ton (assay) (us)?
How do I convert tons (assay) (us) to kilograms?
How do I convert kilograms back to tons (assay) (us)?
How many kilograms 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 = 0.02916667 kg) 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.