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Carat Weight Conversion Calculator — result sheet
Convert a gemstone mass between metric carats, points, grams, milligrams, and avoirdupois ounces without confusing carat weight with gold purity.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Convert the input to grams; one metric carat = 0.2 g and one point = 0.01 carat; then report grams, milligrams, carats, points, and avoirdupois ounces.
Carat is a mass unit used for gemstones, not the karat purity notation used for gold. The calculator converts the entered mass through grams and keeps the metric-carat definition visible so a jewelry or study result is not mistaken for a price estimate.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Value to convert — minimum 0; maximum 1000000000
- Input unit — 5 choices
Worked example
| Input | Value |
|---|---|
| Value to convert | 1 |
| Input unit | carat |
1 metric carat equals 0.2 g, 200 mg, 100 points, and about 0.0070548 avoirdupois ounces.
Assumptions and limits
- The carat is the metric carat used for gemstone mass: exactly 0.2 grams.
- A point is one hundredth of a carat.
- The ounce output is an avoirdupois ounce, not a troy ounce used for some precious-metal contexts.
- The result describes mass only and does not estimate gemstone size, value, grade, cut, color, clarity, or authenticity.
- Values are treated as nonnegative measured or planned masses.
- Rounding for a report or grading document should follow the applicable laboratory or trading convention.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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