Carat to Kilogram Converter
Enter the value that you want to convert carat to kilogram (kg) or kilogram to carat.
1 carat = 0.0002000 kilogram
Formula: kilogram = carat value × 0.0002000
carat to kilogram
10 carat = 0.00200 kilogram
Popular Weight Converters:
Converting Carat to Kilogram
The Carat Explained
Carat (car, ct) is a unit of weight measurement. 1 carat is equal to 0.0002000 kilogram.
The Kilogram Explained
Kilogram (kg) is a unit of weight measurement. 1 kilogram is equal to 5000.0000000 carat.
Understanding Weight Conversions
Weight unit conversions are among the most frequently performed in daily life. International commerce ships in metric tonnes and kilograms, while US domestic logistics uses pounds and ounces. Recipes from different countries use different systems — a European cake recipe in grams versus an American one in cups and ounces. Pharmacists convert between milligrams and grains for medication dosing. Athletes track body weight across metric and imperial systems depending on their country and sport federation requirements.
carat to kilogram metric conversion table
| 0.01 car, ct | = | 0.00000 kg |
| 0.1 car, ct | = | 0.00002 kg |
| 1 car, ct | = | 0.00020 kg |
| 2 car, ct | = | 0.00040 kg |
| 3 car, ct | = | 0.00060 kg |
| 4 car, ct | = | 0.00080 kg |
| 5 car, ct | = | 0.00100 kg |
| 6 car, ct | = | 0.00120 kg |
| 7 car, ct | = | 0.00140 kg |
| 8 car, ct | = | 0.00160 kg |
| 9 car, ct | = | 0.00180 kg |
| 10 car, ct | = | 0.00200 kg |
| 11 car, ct | = | 0.00220 kg |
| 12 car, ct | = | 0.00240 kg |
| 13 car, ct | = | 0.00260 kg |
| 14 car, ct | = | 0.00280 kg |
| 15 car, ct | = | 0.00300 kg |
| 16 car, ct | = | 0.00320 kg |
| 17 car, ct | = | 0.00340 kg |
| 18 car, ct | = | 0.00360 kg |
| 19 car, ct | = | 0.00380 kg |
| 20 car, ct | = | 0.00400 kg |
| 30 car, ct | = | 0.00600 kg |
| 40 car, ct | = | 0.00800 kg |
| 50 car, ct | = | 0.01000 kg |
| 60 car, ct | = | 0.01200 kg |
| 70 car, ct | = | 0.01400 kg |
| 80 car, ct | = | 0.01600 kg |
| 90 car, ct | = | 0.01800 kg |
| 100 car, ct | = | 0.02000 kg |
| 200 car, ct | = | 0.04000 kg |
| 300 car, ct | = | 0.06000 kg |
| 400 car, ct | = | 0.08000 kg |
| 500 car, ct | = | 0.10000 kg |
| 600 car, ct | = | 0.12000 kg |
| 700 car, ct | = | 0.14000 kg |
| 800 car, ct | = | 0.16000 kg |
| 900 car, ct | = | 0.18000 kg |
| 1000 car, ct | = | 0.20000 kg |
How to Convert Carat to Kilogram?
We can convert carat to kilogram by using an example.
Example:
Convert 20 Carat to Kilogram?
We know 1 Carat = 0.0002000 kilogram; 1 Kilogram = 5000.0000000 carat.
20 carat = ___kg
20 × 0.0002000 = 0.00400 kg (we know 1 carat = 0.0002000 kilogram)
Answer:
20 carat = 0.00400 kilogram
How to Convert Carats to Kilograms (Step-by-Step)
One carat equals 0.0002 kg (200 mg). This conversion is needed when calculating shipping costs for gemstone parcels or comparing gem weights to everyday objects measured in kilograms.
- Identify the weight in carats (ct) you want to convert.
- Multiply by 0.0002 to get the value in kilograms.
- Alternatively, divide the carat value by 5,000.
Common Carat to Kilogram Conversions
Reference values showing how gem-scale weights relate to kilogram measurements.
| Carat | Kilogram |
|---|---|
| 1 ct | 0.0002 kg |
| 5 ct | 0.001 kg |
| 50 ct | 0.01 kg |
| 100 ct | 0.02 kg |
| 500 ct | 0.1 kg |
| 1,000 ct | 0.2 kg |
| 5,000 ct | 1 kg |
Solved Examples: Carats to Kilograms
Question 1: A parcel of 2,500 carats of rough diamonds needs to be shipped. What is the weight in kg?
Solution:
Weight in kg = 2,500 × 0.0002
= 0.5 kg
Answer: 2,500 carats = 0.5 kg (500 grams).
Question 2: A gem collection totals 350 carats. Convert to kilograms.
Solution:
Weight in kg = 350 × 0.0002
= 0.07 kg
Answer: 350 carats = 0.07 kg (70 grams).
Question 3: Convert the 3,106-carat Cullinan Diamond (rough) to kilograms.
Solution:
Weight in kg = 3,106 × 0.0002
= 0.6212 kg
Answer: The Cullinan Diamond weighed 0.621 kg (621.2 grams) in the rough.
Practice Questions: Carats to Kilograms
Try solving these on your own to test your understanding:
- Convert 10,000 carats to kilograms. (Answer: 2 kg)
- A shipment of gemstones weighs 750 ct. How many kg? (Answer: 0.15 kg)
- Express 45 carats in kilograms. (Answer: 0.009 kg)
- A dealer has 8,200 ct of rough stones. Convert to kg. (Answer: 1.64 kg)
- How many carats in 0.5 kg? (Answer: 2,500 ct)
Shipping Gemstone Parcels by Weight
Gemstone shipments are valued in carats but shipped by kilogram weight. A 10,000-carat parcel of rough diamonds weighs only 2 kg but may be worth millions. Courier and insurance companies need the kg weight for logistics, while the carat weight determines the commercial value. This disconnect is why gem shipments have extraordinary value-to-weight ratios compared to other cargo.
Why Gems Use Carats Instead of Kilograms
The carat provides appropriate precision for gem-scale objects. A 1-carat diamond is only 0.0002 kg — writing "0.0002 kg" is cumbersome and error-prone. The carat system lets dealers express gem weights as simple numbers (1 ct, 2.5 ct, 0.75 ct) without excessive zeros. It also serves as a universal unit understood across all gem markets regardless of whether the local system is metric or imperial.
Key Takeaways
- 1 carat = 0.0002 kg (exactly 200 milligrams).
- 5,000 carats = 1 kilogram exactly.
- Gem parcels: thousands of carats typically equal less than 1 kg.
- The Cullinan Diamond (3,106 ct) weighed only 0.621 kg.
- Shipping uses kg; pricing uses ct — know both for logistics.
- Divide carats by 5,000 to get kilograms.
Carat to Kilogram Conversion Formula
kilogram = carat × 0.0002000
1 carat = 0.0002000 kilogram
1 kilogram = 5000.0000000 carat
Reverse: carat = kilogram × 5000.0000000
Frequently Asked Questions
How many kilogram are in 1 carat?
There are 0.0002000 kilogram in 1 carat. To convert carat to kilogram, multiply the value by 0.0002000.
How do I convert carat to kilogram?
Multiply your carat value by 0.0002000 to get the equivalent in kilogram. For example, 5 carat = 5 × 0.0002000 = 0.00100 kilogram.
How do I convert kilogram to carat?
Multiply your kilogram value by 5000.0000000 to get the equivalent in carat. Alternatively, divide by 0.0002000.
What is 10 carat in kilogram?
10 carat is equal to 0.00200 kilogram.
What is 100 carat in kilogram?
100 carat is equal to 0.02000 kilogram.