Free single + blend calculator

Clear label math, shown on the barrel you choose.

Calculate a single label or enter every component in a blend, then inspect concentration, reference volume, and a 0.3 mL, 0.5 mL, or 1 mL U-100 illustration. No account or payment required.

Free calculator

Build the calculation from the label.

No account required
Choose a U-100 barrel size to visualize
Calculated reference volume0.05 mL5 units on a U-100 scale
1 mL barrelFill marker: 5 units
050100 units

Illustrative U-100 scale only. Device markings vary; verify the physical device and every source value independently.

Concentration5 mg/mL5,000 mcg/mL
Reference math250 mcg / 5,000 mcg/mL= 0.05 mL
Equal portions40at the entered reference amount

Educational arithmetic from values you enter. It does not choose a compound, amount, schedule, route, or treatment plan.

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