Concentration and Volume Calculator
Work out concentration, volume and dial clicks for a PepPen. Every PepPen moves 0.01 mL per click.
This is a unit conversion tool. It does arithmetic on the numbers you enter (concentration, volume and dial clicks) and nothing more. It does not recommend, suggest or validate any amount, and nothing on this page is dosing guidance or instructions for use in humans or animals.
PepPens products are not medical devices, are not FDA cleared or approved, and are not intended for human or animal therapeutic, diagnostic or clinical use. By using this calculator you accept full responsibility for how its results are used.
Concentration and dial clicks
Change the example numbers to yours. Results update as you type.
mL to clicks
Already know the volume? Convert it straight to clicks. One click equals 0.01 mL.
How the numbers work
Concentration is the amount in the vial divided by the water added. 10 mg in 2 mL is 5 mg per mL.
Volume is the target quantity divided by the concentration. 0.5 mg at 5 mg per mL is 0.10 mL.
Clicks are the volume divided by 0.01 mL. 0.10 mL is 10 clicks. Results round to the nearest whole click, since the dial moves in full clicks.
Dial limits. The V2, V2 Pro and V3 dial up to 60 clicks (0.60 mL) per press. The V1 dials up to 80 clicks (0.80 mL). Cartridges hold 3 mL.
New to filling a cartridge? See our guide to filling and setting up your pen.
This calculator does arithmetic on the numbers you enter. It doesn't recommend amounts. PepPens products are for research use only and are not intended for human or animal use.
