Calculators / Oil and liquid vials
Injection volume calculator
For ready-made vials labelled in mg/mL, like testosterone at 200 or 250 mg/mL. Everything is worked out in your browser.
How it works
Volume = dose ÷ strength. 125 mg of a 250 mg/mL oil is 0.5 mL. Under 1 mL it can be drawn on a 1 mL insulin syringe: 0.5 mL is the 50 mark.
Every 3.5 days is 2 injections a week; every other day is 3.5.
For planning only. Check every dose against your prescription.