Mounjaro Click Calculator

Work out clicks per dose, cost per injection and how much you save by splitting a higher-strength KwikPen. UK multi-dose pens use 60 clicks per labelled dose.

Let's Lose Weight

Click Calculator

Work out clicks per dose, cost per injection and your savings.

Pen strength

Desired dose

Injection frequency

Costs (optional — for savings comparison)

Cost of 10 mg pen

Cost of 5 mg pen

Clicks per dose

0clicks

Volume injected

0.30ml

Doses per pen

8doses

Cost per injection

—

Weekly cost

—

Savings comparison

Splitting your 10 mg pen vs. buying a 5 mg pen

Splitting a KwikPen into smaller doses isn't officially recommended. The manufacturer's instructions describe one full labelled dose per injection, and splitting falls outside the licensed use of the medication. Some patients do this to save money, but you should only do so with guidance from your prescriber — accuracy at small click counts, sterility between injections and storage all become your responsibility.

Saved per injection

—

Saved over 8 doses

—

Enter the cost of your 10 mg pen and a 5 mg pen above to see your savings.

Save your results

A formatted summary of your inputs and results.

Or get this sent to your email — we'll also keep you up to date with weight-loss tips and offers (you can unsubscribe any time).

I agree to receive my results by email and to be added to the Let's Lose Weight mailing list. See our privacy policy.

Important. This calculator is for information only and is not medical advice. It applies to the multi-dose Mounjaro KwikPen (UK). Always follow the dose your prescriber has given you and read the patient information leaflet supplied with your pen. One full labelled dose of any KwikPen is delivered with 60 clicks (0.6 ml).

On splitting doses. Eli Lilly and the manufacturer's instructions describe one full labelled dose per injection. Dialling partial doses to split a higher-strength pen falls outside that licensed use and is not officially recommended. Speak to your prescriber before relying on the savings comparison above.

How it works

KwikPen clicks, explained

The UK multi-dose Mounjaro KwikPen delivers one full labelled dose with 60 clicks (0.6 ml). Each pen holds 4 full labelled doses (2.4 ml in total).

That means a 10 mg pen can be dialled to deliver a 5 mg dose in 30 clicks, giving you 8 injections per pen — often cheaper than buying a 5 mg pen labelled for that dose. This calculator shows the maths.

Important. Always follow the dose your prescriber has given you and read the patient information leaflet supplied with your pen. This tool is for information only and is not medical advice.

Compare Mounjaro prices Try the BMI Calculator