Carat is a unit used in mass conversions and practical measurement work.
The carat takes its name from the carob seed once used to weigh gems. The metric carat of exactly 200 mg was adopted internationally in 1907.
Measurement system: Metric, customary and historical mass-measurement usage. SI equivalent: 1 ct = 0.0002 kg.
Carat facts
- Unit name
- Carat
- Symbol
- ct
- Category
- Mass
- Measurement system
- Metric, customary and historical mass-measurement usage
- SI equivalent
- 1 ct = 0.0002 kg
- Common uses
- Products, material quantities, scientific work and trade
Definition of the carat
Carat 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 ct = 0.0002 kg
History of the carat
The carat takes its name from the carob seed once used to weigh gems. The metric carat of exactly 200 mg was adopted internationally in 1907.
Where is the carat used?
Products, material quantities, scientific work and trade