One scale. Two ways to read it.

Syringe units ↔ mL.

A simple volume conversion for a confirmed U-100 scale.

units

This conversion does not apply to U-40, U-500, pens, or drug potency in IU.

No concentration or dose assumed

Your conversion

U-100 only

Two labels.
The same volume.

Enter an amount and confirm U-100 to see its mathematical equivalent.

On U-100, 1 unit = 0.01 mL. Syringe units describe a volume scale, not the amount of peptide.

U-100 syringe conversion chart

These are volume equivalents, not suggested doses or confirmation that a syringe can measure each amount.

U-100 units and equivalent milliliters
U-100 unitsVolume in mL
10.01 mL
50.05 mL
100.1 mL
150.15 mL
200.2 mL
250.25 mL
300.3 mL
500.5 mL
1001 mL

Can I convert mg straight to syringe units?

You need the concentration first. The same 10-unit mark on a U-100 syringe is always 0.1 mL, but the amount of peptide in that liquid changes with concentration. The peptide calculator connects target mass, concentration, and volume.

A 0.3 mL syringe holds up to 30 U-100 units; 0.5 mL holds 50; 1 mL holds 100. The smallest graduation is a separate detail printed on the syringe. Read the formula guide to see the relationship between all four units.