Peptide Unit Converter
Convert between milligrams (mg), micrograms (mcg), and International Units (IU) for common peptides. IU conversions are peptide-specific β select your peptide for accurate results. Math conversions only.
Unit Converter
Enter a value, choose the source and target units, and select the peptide type if converting to or from IU.
Converted Value
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Common Peptide Unit Conversions
| Peptide | 1 mg | 1 mcg | 1 IU |
|---|---|---|---|
| Generic peptide | 1,000 mcg | 0.001 mg | N/A |
| HCG | 1,000 mcg | 0.001 mg | ~0.0137 mg (β13.7 mcg) |
| Insulin (U-100) | 1,000 mcg | 0.001 mg | ~0.0347 mg (β34.7 mcg) |
| Growth Hormone | 1,000 mcg | 0.001 mg | 0.00333 mg (3.33 mcg = 1 IU) |
How It Works
- mg ↔ mcg: 1 mg = 1,000 mcg β multiply or divide by 1,000
- IU conversions: IU is peptide-specific. The conversion factor depends on the biological activity of the specific substance.
- HCG: Standard reference is ~1 IU = 13.7 mcg (varies by preparation; verify with your vial label)
- Insulin U-100: 100 IU = 3.47 mg, so 1 IU β 34.7 mcg
- Growth Hormone: 3 IU β 1 mg (1 IU β 333 mcg) β standard for somatropin
Important Notes
- IU conversion factors vary by peptide and manufacturer β always verify against your vial label
- This calculator performs math conversions only β not medical advice
- For research and educational purposes only