ct to g Converter - Carat to Gram
Carat (ct) to Gram (g)
Direct answer
1 ct = 0.2 g
g = ct × 0.2
Converter
Conversion formula
g = ct × 0.2
ct = g × 5
Example: 10 ct = 10 × 0.2 = 2 g.
Common conversion table
| ct | g |
|---|---|
| 1 ct | 0.2 g |
| 2 ct | 0.4 g |
| 5 ct | 1 g |
| 10 ct | 2 g |
| 20 ct | 4 g |
| 50 ct | 10 g |
| 100 ct | 20 g |
| 1,000 ct | 200 g |
Conversion derivation
Express both ct and g in the same base unit kg (kilogram), then cancel the shared base unit.
- 1
Rewrite ct in the base unit
- 2
Rewrite g in the base unit
- 3
Forward conversion
- 4
Reverse conversion
AI explanation for this conversion
This pre-generated explanation is schema-checked. Numeric results still come from the page formula and calculator.
Carat to Gram Conversion Factor Explanation
This conversion factor is derived by expressing both the carat and the gram in terms of the base unit kilogram. The carat is defined as 0.0002 kg, and the gram is defined as 0.001 kg. Comparing these definitions gives the direct conversion factor.
Definition
A carat (ct) is a unit of mass for gemstones, where 1 ct equals 0.2 grams. The gram (g) is a metric unit of mass, where 1 gram equals 5 carats.
Principle
The conversion factor is obtained by dividing the mass of one carat by the mass of one gram when both are expressed in kilograms. The factor 0.2 is the result of this division.
Assumptions
- The conversion uses the defined relationships: 1 ct = 0.0002 kg and 1 g = 0.001 kg.
- The definitions are exact and do not depend on external conditions.
Cautions
- The conversion factor is exact only for the defined values of the carat and gram.
- Always round the result to the required precision for your calculation.
FAQ
How many g are in 1 ct?
1 ct = 0.2 g.
How many g are in 10 ct?
10 ct = 2 g.
How many g are in 100 ct?
100 ct = 20 g.
What is the formula to convert ct to g?
Use g = ct × 0.2.
How many ct are in 1 g?
1 g = 5 ct.
What should I check when converting ct to g?
Use the conversion factor and round the result to the precision required by your calculation.