Dalton is a unit used in mass conversions and practical measurement work.
Named after chemist John Dalton, the dalton (unified atomic mass unit) is one twelfth of the mass of a carbon-12 atom, about 1.66 × 10⁻²⁷ kg. It is the standard unit for atomic and molecular masses.
Measurement system: Metric, customary and historical mass-measurement usage. SI equivalent: 1 Da = 1.660539e-27 kg.
Dalton facts
- Unit name
- Dalton
- Symbol
- Da
- Category
- Mass
- Measurement system
- Metric, customary and historical mass-measurement usage
- SI equivalent
- 1 Da = 1.660539e-27 kg
- Common uses
- Products, material quantities, scientific work and trade
Definition of the dalton
Dalton is a unit used in mass conversions and practical measurement work.
Measurement system and SI relationship
Metric, customary and historical mass-measurement usage
SI equivalent: 1 Da = 1.660539e-27 kg
History of the dalton
Named after chemist John Dalton, the dalton (unified atomic mass unit) is one twelfth of the mass of a carbon-12 atom, about 1.66 × 10⁻²⁷ kg. It is the standard unit for atomic and molecular masses.
Where is the dalton used?
Products, material quantities, scientific work and trade