Convert Pound (lb) to Ton (Assay) (US) (AT (US)) instantly.

Pound

Ton (Assay) (US)

About these units

Pound (lb)

The pound is a traditional unit of mass widely used in the United States and, to a lesser extent, in the United Kingdom. Defined as exactly 0.45359237 kilograms, the pound evolved from medieval English systems that themselves descended from Roman and Carolingian traditions. The pound is central to commerce, engineering, food measurement, and body weight scales in the US. Its widespread cultural presence makes it deeply familiar even in contexts where metric units dominate. Because the pound is part of a non-decimal system, subdivisions such as ounces (1/16 pound) introduce complexity, yet this structure persists due to tradition and embedded industrial standards. In engineering, the pound often appears alongside pound-force, making careful distinction between mass and force essential.

Ton (Assay) (US) (AT (US))

The US assay ton is a specialized unit used in mining and metallurgy for evaluating ore grades. It is defined as 29.166⅔ grams, a very small mass chosen to simplify calculations relating assay results to tons of ore. The idea is that if an assay ton of sample yields 1 milligram of precious metal, then one actual ton of ore contains 1 ounce of that metal. This scaling makes laboratory results directly translatable to mining yields. While obsolete in modern industrial practice, where metric units dominate, the assay ton remains important in historical mining records and for researchers studying early industrial metallurgy.

More Pound converters

Pound [lb] ↔ Kilogram [kg]

Pound [lb] ↔ Gram [g]

Pound [lb] ↔ Ounce [oz]

Pound [lb] ↔ Metric Ton [t]

Pound [lb] ↔ Milligram [mg]

Pound [lb] ↔ Stone [st]

Pound [lb] ↔ US Ton (Short) [ton (US)]

Pound [lb] ↔ UK Ton (Long) [ton (UK)]

Pound [lb] ↔ Carat [car, ct]

Pound [lb] ↔ Attogram [ag]

Pound [lb] ↔ Femtogram [fg]

Pound [lb] ↔ Picogram [pg]

Pound [lb] ↔ Nanogram [ng]

Pound [lb] ↔ Microgram [µg]

Pound [lb] ↔ Centigram [cg]

Pound [lb] ↔ Decigram [dg]

Pound [lb] ↔ Dekagram [dag]

Pound [lb] ↔ Hectogram [hg]

Pound [lb] ↔ Megagram [Mg]

Pound [lb] ↔ Gigagram [Gg]

Pound [lb] ↔ Teragram [Tg]

Pound [lb] ↔ Petagram [Pg]

Pound [lb] ↔ Exagram [Eg]

Pound [lb] ↔ Atomic Mass Unit [u]

Pound [lb] ↔ Dalton [Da]

Pound [lb] ↔ Planck Mass [mₕ]

Pound [lb] ↔ Electron Mass [mₑ]

Pound [lb] ↔ Muon Mass [mᵤ]

Pound [lb] ↔ Proton Mass [mₕ (p)]

Pound [lb] ↔ Neutron Mass [mₙ]

Pound [lb] ↔ Deuteron Mass [m𝒹]

Pound [lb] ↔ Kilogram-force Second/Meter [kgf·s²/m]

Pound [lb] ↔ Kilopound [kip]

Pound [lb] ↔ Slug [slug]

Pound [lb] ↔ Poundal [pdl]

Pound [lb] ↔ Pound-force Square Second/Foot [lbf·s²/ft]

Pound [lb] ↔ Pennyweight [pwt]

Pound [lb] ↔ Scruple (Apothecary) [s.ap]

Pound [lb] ↔ Grain [gr]

Pound [lb] ↔ Pound (Troy) [lb t]

Pound [lb] ↔ Ton (Assay) (US) [AT (US)]

Pound [lb] ↔ Ton (Assay) (UK) [AT (UK)]

Pound [lb] ↔ Kiloton (Metric) [kt]

Pound [lb] ↔ Quintal (Metric) [cwt (m)]

Pound [lb] ↔ Hundredweight (US) [cwt (US)]

Pound [lb] ↔ Hundredweight (UK) [cwt (UK)]

Pound [lb] ↔ Quarter (US) [qr (US)]

Pound [lb] ↔ Quarter (UK) [qr (UK)]

Pound [lb] ↔ Stone (US) [st (US)]

Pound [lb] ↔ Talent (Biblical Hebrew) [talent (H)]

Pound [lb] ↔ Mina (Biblical Hebrew) [mina]

Pound [lb] ↔ Shekel (Biblical Hebrew) [shekel]

Pound [lb] ↔ Bekan (Biblical Hebrew) [bekan]

Pound [lb] ↔ Gerah (Biblical Hebrew) [gerah]

Pound [lb] ↔ Talent (Biblical Greek) [talent (G)]

Pound [lb] ↔ Mina (Biblical Greek) [mina (G)]

Pound [lb] ↔ Tetradrachma (Biblical Greek) [tetradrachma]

Pound [lb] ↔ Didrachma (Biblical Greek) [didrachma]

Pound [lb] ↔ Drachma (Biblical Greek) [drachma]

Pound [lb] ↔ Denarius (Biblical Roman) [denarius]

Pound [lb] ↔ Assarion (Biblical Roman) [assarion]

Pound [lb] ↔ Quadrans (Biblical Roman) [quadrans]

Pound [lb] ↔ Lepton (Biblical Roman) [lepton]

Pound [lb] ↔ Earth's Mass [M⊕]

Pound [lb] ↔ Sun's Mass [M☉]

Convert Pound to Ton (Assay) (US)