Convert Atomic Mass Unit (u) to Quarter (UK) (qr (UK)) instantly.

Atomic Mass Unit

Quarter (UK)

About these units

Atomic Mass Unit (u)

The atomic mass unit (u) is defined as exactly 1/12 the mass of a neutral carbon-12 atom, which makes it approximately 1.66053906660 × 10⁻²⁷ kilograms. This definition allows scientists to express atomic and molecular masses in a convenient, intuitive scale that aligns with the structure of the periodic table. By anchoring the unit to carbon-12, chemists and physicists gained a universal reference point that harmonizes molecular weight, relative isotopic abundance, and mass spectroscopy results. The atomic mass unit effectively normalizes the complexity of atomic masses into whole-number or near-whole-number values for most nuclei. In chemistry, u is indispensable for calculating molar masses, reaction stoichiometry, and isotopic compositions. It is also used across nuclear physics, astrophysics, and biophysics, demonstrating the universality of atomic-scale measurement.

Quarter (UK) (qr (UK))

The UK quarter, equal to 28 pounds, corresponds to 1/4 of a UK hundredweight. Historically used in grain trade, wool markets, and taxation, it reflects the older English approach to structuring weights around the stone. Its direct link to the long hundredweight made it easy for merchants to calculate loads and price goods. While obsolete today, the UK quarter remains important for historians reconstructing traditional British commerce and agricultural economies.

More Atomic Mass Unit converters

Atomic Mass Unit [u] ↔ Kilogram [kg]

Atomic Mass Unit [u] ↔ Gram [g]

Atomic Mass Unit [u] ↔ Pound [lb]

Atomic Mass Unit [u] ↔ Ounce [oz]

Atomic Mass Unit [u] ↔ Metric Ton [t]

Atomic Mass Unit [u] ↔ Milligram [mg]

Atomic Mass Unit [u] ↔ Stone [st]

Atomic Mass Unit [u] ↔ US Ton (Short) [ton (US)]

Atomic Mass Unit [u] ↔ UK Ton (Long) [ton (UK)]

Atomic Mass Unit [u] ↔ Carat [car, ct]

Atomic Mass Unit [u] ↔ Attogram [ag]

Atomic Mass Unit [u] ↔ Femtogram [fg]

Atomic Mass Unit [u] ↔ Picogram [pg]

Atomic Mass Unit [u] ↔ Nanogram [ng]

Atomic Mass Unit [u] ↔ Microgram [µg]

Atomic Mass Unit [u] ↔ Centigram [cg]

Atomic Mass Unit [u] ↔ Decigram [dg]

Atomic Mass Unit [u] ↔ Dekagram [dag]

Atomic Mass Unit [u] ↔ Hectogram [hg]

Atomic Mass Unit [u] ↔ Megagram [Mg]

Atomic Mass Unit [u] ↔ Gigagram [Gg]

Atomic Mass Unit [u] ↔ Teragram [Tg]

Atomic Mass Unit [u] ↔ Petagram [Pg]

Atomic Mass Unit [u] ↔ Exagram [Eg]

Atomic Mass Unit [u] ↔ Dalton [Da]

Atomic Mass Unit [u] ↔ Planck Mass [mₕ]

Atomic Mass Unit [u] ↔ Electron Mass [mₑ]

Atomic Mass Unit [u] ↔ Muon Mass [mᵤ]

Atomic Mass Unit [u] ↔ Proton Mass [mₕ (p)]

Atomic Mass Unit [u] ↔ Neutron Mass [mₙ]

Atomic Mass Unit [u] ↔ Deuteron Mass [m𝒹]

Atomic Mass Unit [u] ↔ Kilogram-force Second/Meter [kgf·s²/m]

Atomic Mass Unit [u] ↔ Kilopound [kip]

Atomic Mass Unit [u] ↔ Slug [slug]

Atomic Mass Unit [u] ↔ Poundal [pdl]

Atomic Mass Unit [u] ↔ Pound-force Square Second/Foot [lbf·s²/ft]

Atomic Mass Unit [u] ↔ Pennyweight [pwt]

Atomic Mass Unit [u] ↔ Scruple (Apothecary) [s.ap]

Atomic Mass Unit [u] ↔ Grain [gr]

Atomic Mass Unit [u] ↔ Pound (Troy) [lb t]

Atomic Mass Unit [u] ↔ Ton (Assay) (US) [AT (US)]

Atomic Mass Unit [u] ↔ Ton (Assay) (UK) [AT (UK)]

Atomic Mass Unit [u] ↔ Kiloton (Metric) [kt]

Atomic Mass Unit [u] ↔ Quintal (Metric) [cwt (m)]

Atomic Mass Unit [u] ↔ Hundredweight (US) [cwt (US)]

Atomic Mass Unit [u] ↔ Hundredweight (UK) [cwt (UK)]

Atomic Mass Unit [u] ↔ Quarter (US) [qr (US)]

Atomic Mass Unit [u] ↔ Quarter (UK) [qr (UK)]

Atomic Mass Unit [u] ↔ Stone (US) [st (US)]

Atomic Mass Unit [u] ↔ Talent (Biblical Hebrew) [talent (H)]

Atomic Mass Unit [u] ↔ Mina (Biblical Hebrew) [mina]

Atomic Mass Unit [u] ↔ Shekel (Biblical Hebrew) [shekel]

Atomic Mass Unit [u] ↔ Bekan (Biblical Hebrew) [bekan]

Atomic Mass Unit [u] ↔ Gerah (Biblical Hebrew) [gerah]

Atomic Mass Unit [u] ↔ Talent (Biblical Greek) [talent (G)]

Atomic Mass Unit [u] ↔ Mina (Biblical Greek) [mina (G)]

Atomic Mass Unit [u] ↔ Tetradrachma (Biblical Greek) [tetradrachma]

Atomic Mass Unit [u] ↔ Didrachma (Biblical Greek) [didrachma]

Atomic Mass Unit [u] ↔ Drachma (Biblical Greek) [drachma]

Atomic Mass Unit [u] ↔ Denarius (Biblical Roman) [denarius]

Atomic Mass Unit [u] ↔ Assarion (Biblical Roman) [assarion]

Atomic Mass Unit [u] ↔ Quadrans (Biblical Roman) [quadrans]

Atomic Mass Unit [u] ↔ Lepton (Biblical Roman) [lepton]

Atomic Mass Unit [u] ↔ Earth's Mass [M⊕]

Atomic Mass Unit [u] ↔ Sun's Mass [M☉]

Convert Atomic Mass Unit to Quarter (UK)