Convert kilograms to carats

1 kg=5,000ct

Use the converter below to change any kilograms value into carats instantly — with formula, conversion table, and real-world examples.

You have

Equals

5,000

Conversion formula

Forward

carats = kilograms × 5,000

Reverse

kilograms = carats × 0.0002

Example: 10 kg × 5,000 = 50,000 ct.

About both units

From

Kilogram

The kilogram is the SI base unit of mass. Since 2019 it has been defined via the fixed numerical value of Planck's constant — a major shift from the previous definition based on a physical artifact. One litre of water at 4 °C has a mass of almost exactly 1 kg, a coincidence designed into the original 1795 definition.

Real-world: A litre of water weighs 1 kg at 4 °C. An average adult weighs 60–90 kg. A standard bag of flour is 1 kg.

Read full kilogram reference →

Carat

The metric carat equals 200 milligrams exactly. It is the standard unit for gemstone weight — diamonds, rubies, sapphires and emeralds are sold by the carat. Do not confuse with the purity carat (karat) used for gold (24K = pure gold).

Real-world: A 1-carat diamond weighs 200 mg and is typically 6.5 mm across. The Hope Diamond is 45.52 carats (9.1 g).

Read full carat reference →

Kilogram to Carat conversion table

Common kilograms to carats values for quick reference.

Kilogram (kg)	Carat (ct)
1 kg	5,000 ct
5 kg	25,000 ct
10 kg	50,000 ct
25 kg	125,000 ct
50 kg	250,000 ct
100 kg	500,000 ct
250 kg	1,250,000 ct
500 kg	2,500,000 ct
1,000 kg	5,000,000 ct
5,000 kg	25,000,000 ct

Tips & common mistakes

Quick tips

1 kg ≈ 2.205 lb. For quick estimates, double the kg figure and add 10%.
Body weight is best measured first thing in the morning, after using the bathroom but before breakfast.
The kg is the only SI base unit whose name contains a prefix — a historical quirk of the metric system.

Avoid these

Confusing mass (kg) with weight-force (newtons) in physics problems.
Using 2 instead of 2.205 when converting kg to pounds — the 2.5% error matters for airline luggage.
Writing Kg instead of kg — the correct SI abbreviation is lower-case kg.

Frequently asked questions

How many carats in a kilogram?

One kilogram equals 5,000 carats.

How do I convert kilograms to carats?

Multiply the kilogram value by 5,000 to get the equivalent in carats.

What is 100 kilograms in carats?

100 kilograms equals 500,000 carats.

Is a kilogram bigger than a carat?

Yes. 1 kilogram equals 5,000 carats, so one kilogram is larger.

How to convert kilograms to carats without a calculator?

Multiply by 5,000 for a quick estimate; use a calculator for precise results.

Related weight conversions

📊 See full comparison matrix →

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