Carat to Ounce Converter (ct to oz)

How to Convert Carat to Ounce

Formula: Ounce = Carat × 0.00705479

Example: 1 ct = 0.00705479 oz

You can also use the interactive converter above. Simply enter any Carat value and the equivalent Ounce value will appear instantly. Click the ⇄ button to reverse the conversion.

Knowing where Carat and Ounce come from makes the conversion easier to remember. Here is the context, plus a quick FAQ.

Step-by-step example — Convert 1 ct to oz:

What is Carat and Ounce?

A Carat (ct) is a unit of mass equal to exactly 200 milligrams, used almost exclusively for gemstones and pearls.

An Ounce (oz) is one-sixteenth of an avoirdupois pound, commonly used for smaller weights in the US customary system.

Real World Uses of Carat to Ounce Conversion

• Carat: Commonly used for grading pearls in the gem trade.
• Ounce: Commonly used for weighing precious metals and small retail items.
• Carat: Commonly used by jewelers to price diamonds and gemstones — a higher carat weight means a larger stone.
• Ounce: Commonly used in the US for postage weight and small food portions.

Frequently Asked Questions

What is the formula to convert Carat to Ounce?

The formula is: Ounce = Carat x 0.00705479. Multiply any Carat value by 0.00705479 to get the equivalent in Ounce.

What is 1 Carat in Ounce?

1 ct = 0.00705479 oz.

How many Carat are in 1 Ounce?

1 oz = 141.74766364 ct.

Is Carat bigger or smaller than Ounce?

Carat is smaller than Ounce. 1 Ounce = 141.74766364 ct.

What is 5 ct in oz?

5 ct = 0.03527396211 oz.

What is 16 oz in ct?

16 oz = 2,267.96184 ct.

Is carat the same as karat?

No — carat (ct) measures the weight of a gemstone, while karat (kt) measures gold purity out of 24 parts. The different spelling helps tell them apart.