Convert Kilograms to Carats
Convert Kilograms (kg) to Carats (ct) instantly and accurately.
Conversion Formula
ct = kg × 5000
About Kilograms
The kilogram (kg) is the SI base unit of mass - the fundamental unit from which all other mass measurements in the metric system are derived. Since 2019 it has been defined by fixing the Planck constant h to exactly 6.62607015 × 10⁻³⁴ J·s, replacing the 130-year-old International Prototype Kilogram (a platinum-iridium cylinder kept in Sèvres, France). The kilogram governs daily life worldwide: body weight in most countries, grocery shopping, luggage allowances, postal rates, freight pricing, and ingredient quantities in cooking all reference kilograms.
About Carats
A metric carat (ct or CD) is exactly 200 milligrams (0.2 g), the universal standard for weighing gemstones. Established internationally in 1907, it replaced fractionally different regional carat weights previously used in different countries. The total weight of a diamond or colored gemstone is always expressed in carats: a 1.00 ct diamond of excellent cut and color can command over $5,000. The Cullinan diamond, the largest gem-quality rough diamond ever found, weighed 3,106.75 carats.
Quick Reference Table
| Kilograms (kg) | Carats (ct) |
|---|---|
| 1 kg | 5000 ct |
| 2 kg | 10000 ct |
| 5 kg | 25000 ct |
| 10 kg | 50000 ct |
| 25 kg | 125000 ct |
| 50 kg | 250000 ct |
| 100 kg | 500000 ct |