How many hectograms are in one carat?

One carat equals exactly 0.002 hectograms. Since a carat is 0.2 grams and a hectogram is 100 grams, dividing 0.2 by 100 gives 0.002.

What is a hectogram used for?

The hectogram (100 grams) is primarily used in Italian food commerce, where it is called an 'etto.' Italian delis and markets price many items per hectogram. Outside Italy, the hectogram is largely unused, with grams and kilograms preferred.

How many carats make one hectogram?

Exactly 500 carats equal one hectogram (100 grams). This is because each carat is 0.2 grams, and 500 x 0.2 = 100 grams.

Carats to Hectograms (ct to hg) Converter

1 ct = 0.002 hg

1 Carat equals 0.002 Hectograms (1 ct = 0.002 hg). Convert Carats to Hectograms with formula, table, and examples.

One carat equals exactly 0.002 hectograms. A hectogram is 100 grams, making it 500 times heavier than a single carat. The hectogram, like many intermediate metric units, sees limited everyday use but appears in Italian food labeling (the 'etto') and some European commercial contexts.

How to Convert Carats to Hectograms

hg = ct ÷ 500

Divide the value in Carats by 500

Take your value in Carats
Divide by 500
Read the result in Hectograms

Common Carats to Hectograms Conversions

Carats (ct)	Hectograms (hg)	Status
1 ct	0.002 hg
5 ct	0.01 hg
10 ct	0.02 hg
50 ct	0.1 hg
100 ct	0.2 hg
250 ct	0.5 hg
500 ct	1 hg
1,000 ct	2 hg
2,500 ct	5 hg
5,000 ct	10 hg
10,000 ct	20 hg
25,000 ct	50 hg
50,000 ct	100 hg
100,000 ct	200 hg

Good to Know About Carats to Hectograms Conversion

The Italian 'etto' (hectogram) is so embedded in Italian food culture that many Italians do not realize other countries do not use the unit. A recipe calling for 'un etto di burro' (a hectogram of butter, 100 grams) is immediately understood in any Italian kitchen. The hectogram occupies a similar cultural niche to the Austrian dekagram - a metric sub-unit that survived in one country's daily commerce while disappearing from the rest of the world.

Carats to Hectograms: What You Need to Know

To accumulate one hectogram of diamond weight, you would need 500 carats of gems - a substantial collection worth millions of dollars. In Italian markets, an 'etto' (hectogram) of prosciutto is a common deli order. This conversion is most relevant in contexts where gemstone inventories measured in carats need to be reported in standard metric weight units for customs, insurance, or shipping documentation.

What is a Carat? ct

A carat is a unit of mass equal to exactly 200 milligrams (0.2 grams), used for measuring gemstones and pearls. Adopted internationally in 1907 by the Fourth General Conference on Weights and Measures.

Metric diamond weight gemstone grading pearl measurement

Learn more about Carat →

What is a Hectogram? hg

A hectogram is 100 grams or one tenth of a kilogram. Used in Italy (as 'etto') for buying food at markets and delicatessens.

Metric Italian food trade market shopping

Learn more about Hectogram →

Going the other way? Use our Hectograms to Carats converter.

Carats to Hectograms FAQ

One carat equals exactly 0.002 hectograms. Since a carat is 0.2 grams and a hectogram is 100 grams, dividing 0.2 by 100 gives 0.002.
The hectogram (100 grams) is primarily used in Italian food commerce, where it is called an 'etto.' Italian delis and markets price many items per hectogram. Outside Italy, the hectogram is largely unused, with grams and kilograms preferred.
Exactly 500 carats equal one hectogram (100 grams). This is because each carat is 0.2 grams, and 500 x 0.2 = 100 grams.

Non-Frequently Asked Questions About Carats to Hectograms

Questions nobody should ask - but someone did.

A hectogram is 500 carats. If composed of 1-carat round brilliant diamonds (about 6.5 mm each), you could tile an area roughly the size of a credit card. The pile would be small enough to fit in your palm but valuable enough to buy a house. Diamonds are remarkably dense for their size.
Mostly, yes. Walk into a Roman salumeria and order 'due etti di mortadella' (200 grams of mortadella) and nobody blinks. Try ordering 'two hectograms of mortadella' in London or New York and you will receive confused stares. The hectogram is perfectly metric and perfectly Italian in its everyday usage.
Easily. Five hundred 1-carat diamonds would weigh 100 grams - about the weight of a small apple. They would fit comfortably in a small pouch. The value, however, could exceed 2 million dollars, making that pocket the most expensive one in the room.