Carats to Milligrams Converter

Summary

Enter a weight in carats and get the exact milligram equivalent instantly (1 ct = 200 mg).

How it works

1. Enter a weight value in the carats input field.
2. The tool multiplies your value by 200 (the exact carat-to-milligram factor).
3. The milligram result appears immediately below.
4. You can also enter milligrams to convert back to carats.
5. Click "Copy Result" to copy the output value to your clipboard.

Use cases

• Verify diamond or gemstone weight when switching between lab reports.
• Cross-check jewelry specifications listed in different unit systems.
• Convert precious-metal alloy batch weights for a manufacturing workflow.
• Double-check a gemologist's appraisal figure against a milligram scale reading.
• Teach or study the metric carat definition in a classroom setting.
• Build a quick sanity-check into a gem-trading spreadsheet.

Frequently Asked Questions