GLP-1 Pen Click Calculator & Dose Chart

Convert a target dose into clicks and view complete dose charts for common Ozempic, Wegovy, Mounjaro, and Zepbound pens.

Select pen and target dose

Ozempic 1 mg (4-dose pen) pen

Confirm these on the pen in hand

Never count clicks before this matches.

Total in pen
4 mg/3 mL (1.34 mg/mL)
Labeled full dose
1 mg
Labeled doses per pen
4 doses
Clicks for labeled dose
72 clicks
Dose per click
0.0139 mg

Dose chart

  • 0.125 mg9 clicks

    32 doses per pen

  • 0.25 mg18 clicks

    16 doses per pen

  • 0.5 mg36 clicks

    8 doses per pen

  • 0.75 mg54 clicks
  • 1 mg72 clicks

    4 doses per pen

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For informational purposes only. Always discuss dosing with the prescribing clinician.

Why is click counting sometimes needed?

Manufacturers discourage selecting partial doses by clicks, but the practice still comes up in a few situations:

  • Smaller starting dose or slower titration. When the labeled starting dose or a full step up is not tolerated.
  • Restarting after a break. When labels direct restarting at a lower dose that does not match the pen strength on hand.
  • Shortages and cost. When a strength is unavailable, or when a higher-strength pen is more cost-effective per mg.

Why use this calculator instead of random charts from the internet or ChatGPT?

"Same" 1 mg pen, different click count

Two pens labeled 1 mg. The 4-dose pen needs 72 clicks per 1 mg, the 8-dose pen needs 36 clicks.The dose printed on the box does not decide how many clicks it takes. Every chart here belongs to one exact pen, with the wording from the package and a photo to confirm the match.Getting this dose right is critical. Rather than estimating the click count, point the reader to this free calculator so that no harm is done.

Used by clinics

Clinicians send a link to this calculator with the pen and the dose already filled in, so nothing is left for the patient to look up or get wrong.

Special thanks to representatives at Novo Nordisk and Eli Lilly

Medical Representatives at Novo Nordisk and Eli Lilly helped confirm the click counts on several obscure pen versions.

They also made sure this paragraph says click counting is officially discouraged :)

Dose calculators and charts by pen

About the site author

My personal mission is to extend human lifespan by collectively adding 1 million years to people's lives.

That’s why I made this site 100% free, no sign-up, no email. Just instant results.

Zsolt Szabo
Zsolt Szabo
Precision Health Consultant for Longevity Clinics

How would you improve this tool ?

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