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Convert Calc

Carats (ct) to Ounces (oz) Converter

Enter a value to instantly convert between weight units.

Precision4 dp

1 Carat = 0.0071 Ounce

Key Formulas

Kilogram → Pound

lb = kg × 2.20462

Pound → Kilogram

kg = lb × 0.453592

Gram → Ounce

oz = g × 0.035274

Ounce → Gram

g = oz × 28.3495

Formula

oz = ct × 0.0070548

One carat is 0.2 grams, and since an ounce is 28.35 grams, one carat is about 0.007055 ounces. This conversion is useful when gemstone weights (in carats) need to be combined with gold or precious metal weights (in ounces) for jewelry manufacturing calculations or customs documentation.

Source: NIST SP 811, Table B.8

Frequently Asked Questions

Real-World Examples

A jeweler calculating 100 carats of accent diamonds relative to the gold setting weight in oz — 0.705 oz.

100 ct = 0.705 oz

A jewelry manufacturer combining 500 carats of small diamonds with gold in oz for the production sheet — 3.53 oz.

500 ct = 3.527 oz

A goldsmith designing a ring with a 50-carat center stone needs to know it's 0.353 oz for the gold weight calculation.

50 ct = 0.353 oz

A jewelry importer calculating 1000 carats of various gemstones against the gold weight in oz — 7.055 oz.

1000 ct = 7.055 oz