Jewelry Weight Converter
to Convert Carats, Grams, Troy Ounces, etc.

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The Jewelry Weight Converter on this page instantly convert from one common jewelry weight unit to another.

This free online weight conversion calculator will convert between carats (ct), grams (g), milligrams (mg), grains (gr), points (pt), pennyweight (dwt), ounces (oz), and Troy ounces (ozt).

Plus, unlike other online weight converters, this converter will show the formula it used for converting as well as the step-by-step math it used to complete the conversion.

If the weight units you want to convert between are not available in this specialized converter, please try the Weight Conversion Calculator, which performs the 14 most popular standard and metric unit conversions related to weight.

Jeweler's Weight Conversion Table

The following jewelry weight conversion table lists the weight conversion factors used by the converter on this page.

Jeweler's Weight Conversion Factors

How to Use the Weight Conversion Table

To convert from one weight to another using the above table, find the weight you are converting from in the left-most column and slide along the row until you find the column with the heading that you want to convert to. Then simply multiply the number of "From" units by the factor where the two weights intersect.

To illustrate, if you want to convert from 10 carats to grams you would find the "carats" row in the left-most column and then slide to the right until you get to the "grams" column -- where you will see that 1 carat is equal to 0.2 grams. Finally, multiplying 10 (carats) by 0.2 (grams) tells you that 10 carats is equivalent to 2 grams.

With that, let's use the Jewelry Weight Converter to instantly convert from and to carats, grams, troy ounces, etc.

Jewelry Weight Converter
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Instructions: Click the jewelry weight measurement you want to convert From and then click the measurement you want to convert To.

Next, enter the associated "From" weight units in the field provided, and then click the "Convert Weight" button.

Mouse over the blue question marks for a further explanation of each entry field. More in-depth explanations can be found in the glossary of terms located beneath the Jewelry Weight Converter.

Carats to Grams Conversion
Help Enter Carats:
Help Grams rounded to decimal places:

Jewelry Weight Converter Glossary of Terms

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From column: Click to select the jewelry weight units you want to convert from. This will load the proper text and conversion formula into the converter.

To column: Click to select the jewelry weight units you want to convert to. This will load the proper text and conversion formula into the converter.

From entry: Enter the weight units to convert from the type listed in bold on in this line.

Result with rounding: This is the weight units converted into the units listed in bold on this line. Note that you can alter the rounding of the result before or after the conversion.

Karat vs Carat: In case you're not aware of it, Karat and carat are not the same thing. Karat refers to the amount of pure gold in a piece of gold jewelry (24K means 99.9% pure gold), whereas carat refers to the weight of a gemstone.

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