Tools · Units

Unit converter

mg ↔ µg ↔ IU. Pure math. IU factors are substance-specific and come from manufacturer information.

Pure unit conversion. mg ↔ µg is trivial (×1000). For IU (international units) the factor depends on the substance — pick a preset or enter your own factor.

Value

Unit

IU preset

No presetSomatropin (rhGH)1 IU ≈ 0.333 mgIpamorelin1 IU ≈ 1 mghCG (Choriongonadotropin)1 IU ≈ 0.0001 mg

WHO standard: 1 mg = 3 IU, so 1 IU ≈ 0.333 mg.

Results

mg1.000 mg

µg1000.000 µg

IU3.003 IU

This conversion is mathematical. Substance-specific IU conventions come from manufacturer information and are not a recommendation.