Convert UK Ton (Long) (ton (UK)) to Dalton (Da) instantly.
About these units
UK Ton (Long) (ton (UK))
The British long ton equals 2,240 pounds (1,016.0469088 kilograms). Historically used throughout the British Empire, it appears frequently in naval records, early engineering documents, and historical trade ledgers. The long ton's relation to the imperial hundredweight (112 pounds × 20) makes sense within the structure of older English measurement systems. Although replaced by metric tons in the UK, it persists in maritime contexts and in interpreting historical documents. Its presence captures the complexity of pre-metric trade and the need for careful interpretation when comparing international tonnage systems.
Dalton (Da)
The Dalton is numerically identical to 1 atomic mass unit and is commonly used in biochemistry and molecular biology, especially for expressing the masses of proteins, peptides, and macromolecules. While "u" is often preferred in physics and chemistry, the Dalton became the standard in biological sciences because it fits neatly into descriptions of amino acids, nucleotides, and biomolecular complexes. For example, a typical protein may have a mass of 50 kilodaltons (kDa). The adoption of the Dalton helped unify communication across genomics, proteomics, and structural biology. As molecular biology expands into nanotechnology and synthetic biology, the Dalton remains a central unit for describing the building blocks of life.