Carats to Atomic mass units Converter

Convert carats to atomic mass units instantly.

Common weight units

Carat (ct)

Definition: A carat (symbol: ct) is a unit of mass equal to exactly 200 milligrams, or 0.2 grams. It is primarily used for gemstones and pearls.

History/origin: The carat originated from the carob seed, which was historically used as a rough standard for weighing gemstones because of its relatively uniform size. The metric carat was standardized in the early 20th century.

Current use: Carats are used almost exclusively in jewellery and gem trading to describe the weight of diamonds and other precious stones.

Atomic mass unit (u)

Definition: The atomic mass unit is a tiny scientific mass unit. One unified u is defined as 1/12 of the mass of a neutral carbon-12 atom.

History/origin: Atomic-scale work needed a mass reference that matched atoms more naturally than kilograms, so carbon-12 became the basis for a unified relative unit.

Current use: U appears in atomic weights, isotope masses, molecular formulas, mass spectrometry, nuclear data, biochemistry, and particle or molecular science references.

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