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Free concentration calculator
Clear inputs. Visible math. A draw guide that matches your barrel.
Calculate concentration, volume, a U-100 conversion, and see the result illustrated on a 0.3 mL, 0.5 mL, or 1 mL barrel. No account or payment required.
Free calculator
Enter the values from your label.
Calculated draw volume0.05 mL5 units on a U-100 scale
1 mL barrelFill to 5 units
050100 units
Illustrative U-100 scale only. Barrel markings vary by device; verify the actual device and calculation independently.
Concentration5 mg/mL5,000 mcg/mL
Calculation250 mcg รท 5,000 mcg/mL= 0.05 mL
Total portions40at the entered target amount
Educational math from values you enter. Not a recommendation, protocol, or medical instruction.
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