What is 1 syringe unit in mg?

On a U-100 syringe, 1 unit = 0.01 mL. The mg depends on concentration: mg per unit = concentration (mg/mL) × 0.01. At 2.5 mg/mL, 1 unit = 0.025 mg = 25 mcg.

Is a syringe unit the same as an IU?

No. Syringe "units" are volume marks (U-100: 1 unit = 0.01 mL). IU (International Units) measure biological activity and are compound-specific. They are the same number only for U-100 insulin.

How many IU is my HGH?

Recombinant somatropin is standardised at about 3 IU per mg, so a 10 mg vial ≈ 30 IU. This factor is editable in the converter because some product inserts differ slightly.

Free research tools

Peptide Unit Converter

Convert between syringe units, mg/mL, mg, mcg and IU. Set your concentration, type any value, and see all the equivalents at once. For research use only; not medical advice.

Syringe "units" are volume marks (U-100: 1 unit = 0.01 mL). IU measures biological activity. They match only for U-100 insulin.

Syringe type Barrel size

Heads up: U-40 is uncommon — make sure your syringe actually says U-40.

Concentration from:

Vial amount (mg) BAC water (mL)

Concentration (mg/mL)

Concentration:

mg mcg mL units

Dosing HGH / somatropin in IU?

HGH is sold in mg but measured in IU. With your vial set above, type your dose in IU here to get the syringe units (and mL) to draw.

Your HGH dose (IU) IU per mg (default 3)

→ draw

That volume exceeds the selected syringe ( mL).

/ on a syringe

Concentration from:

Total IU in vial BAC water (mL)

Concentration (IU/mL)

Concentration:

IU mL units

That volume exceeds the selected syringe ( mL).

/ on a syringe

For research use only. Not medical advice. Always verify independently.

Frequently asked questions

What is 1 syringe unit in mg?: On a U-100 syringe, 1 unit = 0.01 mL. The mg depends on concentration: mg per unit = concentration (mg/mL) × 0.01. At 2.5 mg/mL, 1 unit = 0.025 mg = 25 mcg.
Is a syringe unit the same as an IU?: No. Syringe "units" are volume marks (U-100: 1 unit = 0.01 mL). IU (International Units) measure biological activity and are compound-specific. They are the same number only for U-100 insulin.
How many IU is my HGH?: Recombinant somatropin is standardised at about 3 IU per mg, so a 10 mg vial ≈ 30 IU. This factor is editable in the converter because some product inserts differ slightly.