GLP-1 pen helper
Click calculator for injectable pens
Choose a medication, select the labeled pen strength, enter a prescribed dose, and review the click estimate with the calculation shown step by step.
Safety note:
Use this only as an educational calculator. Do not change, split, or estimate medication doses unless your prescriber or pharmacist has specifically instructed you to do so for your exact pen.
Dose-window pen
Educational estimate
Estimated clicks
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Select a pen and enter a dose to see the calculation.
Estimated doses
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Estimated coverage
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Enter supply details to estimate how long the medication may last.
How the calculation works
Reference guide
Expanded full-dose click comparison
Use this table as context for the calculator. Click counts can vary by market, pen format, and local clinical guidance.
| Brand and pen strength | Intended full dose | Clicks for full dose |
|---|---|---|
| Ozempic 0.25 mg / 0.5 mg pen | 0.25 mg 0.5 mg |
18 clicks 36 clicks |
| Ozempic 1 mg pen | 1 mg | 72 to 74 clicks |
| Ozempic 2 mg pen | 2 mg | 74 clicks |
| APO-Semaglutide 0.25 mg / 0.5 mg pen | 0.25 mg 0.5 mg |
18 clicks 36 clicks |
| APO-Semaglutide 1 mg pen | 1 mg | 72 to 74 clicks |
| Wegovy 0.5 mg pen | 0.5 mg | 37 clicks |
| Wegovy 1 mg, 1.7 mg, or 2.4 mg pen | 1 mg / 1.7 mg / 2.4 mg | 75 clicks |
| Mounjaro KwikPen, all strengths | 2.5 mg to 15 mg | 60 clicks |
| Zepbound KwikPen, all strengths | 2.5 mg to 15 mg | 60 clicks |
Key difference for Mounjaro and Zepbound
Eli Lilly KwikPen-style devices commonly use a uniform full-dose stop at 60 clicks across strengths. Novo Nordisk-style reference counts can differ by product and pen strength, so the calculator keeps the full-dose click field editable.
Common questions
GLP-1 pen click calculator FAQ
What does this calculator do?
It estimates clicks for selected GLP-1 injection pens by comparing the desired dose with the selected pen's labeled full dose and full-dose click count.
Which medications are included?
The current reference list includes Ozempic, APO-Semaglutide, Wegovy, Mounjaro, and Zepbound pen options.
Can this replace my prescription instructions?
No. This is an educational tool only. Always follow the prescription label and confirm click-counting or partial-dose instructions with a prescriber or pharmacist.
How is medication supply estimated?
The supply estimate uses the labeled doses per pen, pens on hand, desired dose, and dosing interval to estimate complete scheduled doses and coverage time.