Reviewed by John London (Statistician) • Verified against MHRA SmPC • Last reviewed: 27 October 2026
Based on UK MHRA prescribing data and KwikPen mechanical specifications.

Mounjaro Click Chart (UK)
Full KwikPen Click Guide

See exactly how many clicks correspond to every Mounjaro dose across all UK pen strengths.

Monj independently analyses UK Mounjaro dosing mechanics using publicly available prescribing data and device specifications.

Every full Mounjaro dose is exactly 60 clicks on a UK KwikPen. To work out how many clicks you need, divide your dose by the pen strength and multiply by 60.

Need an exact answer?

Use our interactive Mounjaro Click Calculator to work out clicks, doses and cost for your pen.

Open Mounjaro Click Calculator →

The KwikPen Click Formula

All Mounjaro KwikPens use the same mechanical ratio.

(Desired Dose ÷ Pen Strength) × 60 = Clicks

Examples:
2.5mg from a 5mg pen = 30 clicks
5mg from a 7.5mg pen = 40 clicks

If you want to understand the mechanics behind this, read how Mounjaro clicks work .

Interactive Mini Chart Viewer

Enter your pen strength and desired dose below. The chart will automatically scroll and highlight the closest matching click row.

Quick Reference Tool

Estimated clicks: --

Need full calculations? Use the full calculator →

Clicks	Dose (ml)	Doses per pen	2.5 mg	5 mg	7.5 mg	10 mg	12.5 mg	15 mg
1	0.01	240	0.0417	0.0833	0.1250	0.1667	0.2083	0.2500
2	0.02	120	0.0833	0.1667	0.2500	0.3333	0.4167	0.5000
3	0.03	80	0.1250	0.2500	0.3750	0.5000	0.6250	0.7500
4	0.04	60	0.1667	0.3333	0.5000	0.6667	0.8333	1.0000
5	0.05	48	0.2083	0.4167	0.6250	0.8333	1.0417	1.2500
6	0.06	40	0.2500	0.5000	0.7500	1.0000	1.2500	1.5000
8	0.08	30	0.3333	0.6667	1.0000	1.3333	1.6667	2.0000
10	0.10	24	0.4167	0.8333	1.2500	1.6667	2.0833	2.5000
12	0.12	20	0.5000	1.0000	1.5000	2.0000	2.5000	3.0000
15	0.15	16	0.6250	1.2500	1.8750	2.5000	3.1250	3.7500
16	0.16	15	0.6667	1.3333	2.0000	2.6667	3.3333	4.0000
20	0.20	12	0.8333	1.6667	2.5000	3.3333	4.1667	5.0000
24	0.24	10	1.0000	2.0000	3.0000	4.0000	5.0000	6.0000
30	0.30	8	1.2500	2.5000	3.7500	5.0000	6.2500	7.5000
40	0.40	6	1.6667	3.3333	5.0000	6.6667	8.3333	10.0000
48	0.48	5	2.0000	4.0000	6.0000	8.0000	10.0000	12.0000
60	0.60	4	2.5000	5.0000	7.5000	10.0000	12.5000	15.0000

Compare Mounjaro pen prices

Every UK pharmacy ranked by lowest price for each pen strength, codes applied and delivery included.

See the Mounjaro discount price list

See how many clicks each Mounjaro dose requires

Understanding Pen Mechanics

60 Clicks Per Full Dose

Whether you hold a 2.5mg pen or a 15mg pen, the dial inside the UK KwikPen is calibrated the same way. One full dose equals 60 clicks, which delivers 0.6ml.

Linear Calibration

Because the mechanism is linear, a part dose follows a simple ratio. That lets users and healthcare professionals map doses by counting clicks. For a full cost breakdown alongside dosing, use the full tool instead.

Important Safety Information
Mounjaro is a prescription-only medication. This guide is not medical advice. Altering your dosage without guidance from your prescriber can be dangerous. Please report any suspected side effects directly to the MHRA via the Yellow Card Scheme.

Disclaimer: This page is strictly informational. The data provided is based on mathematical calculations of the device's mechanical output and should not be used as a substitute for professional medical guidance.

Calculate your exact Mounjaro clicks instantly

Get click calculations alongside how long your pen lasts and what each dose costs.

Open Mounjaro Click Calculator →

Sources referenced on this page

Linked from the text above:

Yellow Card Scheme yellowcard.mhra.gov.uk

Standing primary references for every Monj page: