Two questions drive almost every search for a Mounjaro dosage chart or Mounjaro weight loss calculator: what are the available doses, and how much weight might I lose on each one?
The short answer is that no Mounjaro click chart or "golden dose" calculator can answer those questions for you. The KwikPen is designed to deliver a fixed dose for each pen strength rather than an adjustable amount of liquid, and individual weight loss cannot be predicted accurately from a calculator.
Both questions do have useful answers. Mounjaro is a prescription medicine containing tirzepatide as its active ingredient. The licensed dosing information shows the available strengths, while clinical trials provide average weight loss results across groups of people.
What neither a chart nor a calculator can do is predict your personal result or tell you which strength you should take. That is a prescribing decision made by an appropriately qualified healthcare professional.
For adults considering Mounjaro or already prescribed it for weight management, this guide explains the available doses, why there is no click or "golden dose" calculator, what clinical trials show about weight loss, how dose increases work, how long treatment may continue, pricing, prescribing criteria and common questions about treatment.
Understanding these points can help you use the pen correctly and have more realistic expectations about dose changes, progress and the longer term cost of treatment.
Mounjaro Dosage Chart: All Doses From 2.5mg to 15mg
This is the licensed dosing framework that prescribers work within. It is not a schedule to follow on your own. The right dose for you depends on factors such as how you respond to treatment and how well you tolerate it.
| Strength | Role in treatment | Minimum before an increase | Volume per dose |
|---|---|---|---|
| 2.5mg | Usual starting strength | 4 weeks | 0.6ml |
| 5mg | First maintenance strength option | 4 weeks | 0.6ml |
| 7.5mg | Intermediate strength | 4 weeks | 0.6ml |
| 10mg | Intermediate strength | 4 weeks | 0.6ml |
| 12.5mg | Higher strength | 4 weeks | 0.6ml |
| 15mg | Maximum licensed strength | Not applicable | 0.6ml |
Three points are more important than the chart itself. Mounjaro treatment normally starts at 2.5mg once a week for 4 weeks, followed by 5mg once a week. If a higher dose is needed, increases are made in 2.5mg steps after at least 4 weeks on the current dose.
The 4 week interval is a minimum rather than a deadline. Your prescriber may decide that staying at the same strength for longer is more suitable, particularly if you are experiencing side effects.
If a higher strength is not suitable for you, your prescriber can decide whether a lower strength or another treatment approach is more appropriate. The 15mg strength is the maximum weekly dose, not a target that everyone needs to reach.
A lower dose means using a lower strength pen. It does not mean taking less liquid from your current pen. Details of every strength are on the Mounjaro weight loss treatment page.
Mounjaro Dosage Chart in ml: Why Every Dose Is 0.6ml
This surprises many people. A 2.5mg dose and a 15mg dose are both delivered in a volume of 0.6ml. What changes between the pens is the amount of tirzepatide in that 0.6ml, not the volume injected.
This explains why an ml based dosage chart would show the same volume for every strength. It also means you should not try to create a smaller dose by injecting less liquid from your pen. The KwikPen is designed to deliver the intended fixed dose for its strength.
If you are unsure which strength you have or how much to inject, check the pen label and Patient Information Leaflet or speak to your prescriber or pharmacist.
Why There Is No Mounjaro Click Chart or Golden Dose Calculator
Click charts and "golden dose" calculators are sometimes shared online as a way of working out partial doses from a Mounjaro pen. However, the KwikPen is designed to deliver set doses and is not intended to be used for creating partial doses by counting clicks.
The pen instructions explain how to prepare and use the pen for its intended dose. Counting clicks to create a different dose or removing medicine from the pen with a syringe is not part of the manufacturer's dosing instructions and can make it difficult to know exactly how much medicine you are using.
A small amount of medicine may remain in the pen after the fourth dose. This remaining medicine should not be used as an additional dose.
If cost is the reason you are looking for a click calculator, the price information below can help you plan your treatment costs. If side effects are the reason, speak to your prescriber. They can decide whether you should remain on your current strength for longer or whether a different approach is appropriate.
How Much Weight Can You Lose on Mounjaro?
The main evidence behind a Mounjaro weight loss calculator comes from large clinical studies such as the SURMOUNT programme. SURMOUNT 1 included 2,539 adults with obesity, or overweight with a weight related condition, and followed them for 72 weeks alongside a reduced calorie diet and increased physical activity.
Tirzepatide acts on both GLP 1 and GIP receptors. These actions can affect appetite, food intake and blood sugar control.
Across the trial, average weight reduction was 15.0% with 5mg, 19.5% with 10mg and 20.9% with 15mg, compared with 3.1% with placebo. At least 5% of body weight was lost by 85%, 89% and 91% of participants on those doses respectively, compared with 35% on placebo.
These figures come from a specific clinical trial population. They are not a prediction of what you will lose. Individual results can be higher or lower, and people with type 2 diabetes may experience different average weight loss from people without diabetes.
Converting these percentages into kilograms can make the figures easier to understand, as long as you treat the calculation as an illustration rather than a personal forecast.
A weight reduction of around 5% can be clinically meaningful for some people and may be associated with improvements in certain health measures. Your healthcare professional can assess your progress based on your individual circumstances rather than using a single percentage as a measure of success.
How Much Weight Can You Lose in a Month?
There is no single reliable monthly figure for Mounjaro weight loss. Clinical trials report average results over longer periods, rather than promising a fixed amount of weight loss every month.
Weight loss also does not usually happen at exactly the same rate each month. Some people may notice changes during the first few weeks, while others may see more gradual changes. Appetite may also change before you notice a larger change on the scales.
The first month is spent on the 2.5mg starting strength, which is used to introduce treatment gradually. Some people lose weight during this period, while others may see only a small change.
As treatment continues, your prescriber may increase the dose if appropriate and if you are tolerating treatment. Weight loss can also slow down or plateau at different points. This does not automatically mean that treatment has stopped working.
The most useful approach is to look at your progress over time rather than expecting a specific result every week or month.
What Dose of Mounjaro Is Best for Weight Loss?
There is no single best Mounjaro dose for everyone. The aim is to find a dose that is appropriate for you and provides a suitable balance between the potential benefits and how well you tolerate treatment.
Clinical trials found greater average weight loss at higher maintenance doses. Average loss was 15.0% with 5mg compared with 20.9% with 15mg over 72 weeks. However, this does not mean that everyone should increase to 15mg.
Higher doses can also be associated with more digestive side effects, particularly when the dose is increased. If you are getting good results at a lower strength and tolerating it well, your prescriber may decide that increasing the dose is not necessary.
Your prescriber considers your response, side effects and overall health when deciding whether a dose change is appropriate.
If your doctor prescribes a change, they may increase your dose gradually based on your response and how well you tolerate treatment.
Can You Stay on 2.5mg Mounjaro?
2.5mg is the usual starting strength for Mounjaro. After 4 weeks, the usual next step is 5mg, but any further dose changes should be decided by your prescriber.
If you are having side effects or there is another clinical reason to change your treatment plan, your prescriber may decide that a different approach is more suitable.
It is important not to increase, reduce or extend your dose schedule on your own. If you are unsure whether you should move to the next strength, speak to your prescriber before taking the next dose.
Cost can also be discussed as part of your treatment review, particularly because the price can increase as the strength increases. However, cost alone should not be used to decide which dose you take.
Once You Start Mounjaro, Are You on It for Life?
Not necessarily. How long you continue Mounjaro depends on your individual treatment plan, response and health needs.
Weight management can be a long term process, and Mounjaro helps manage weight rather than providing a permanent cure for obesity. When treatment stops, its effects on appetite and other processes involved in weight management also stop. Some people regain weight after stopping treatment.
This does not mean everyone will have the same experience. Some people may continue treatment longer term, while others may stop after discussing their options with their prescriber.
If you are thinking about stopping Mounjaro, speak to your prescriber first. They can help you plan what happens next and discuss ways to support your weight management. If you have had a long gap in treatment, do not simply restart an old dose without checking with your prescriber, as you may need to restart at a lower strength.
Calorie Calculators and Mounjaro
We do not publish a specific calorie target. Mounjaro can reduce appetite, so some people may naturally eat less during treatment. However, this does not mean that everyone should follow the same calorie intake.
Regular physical activity is also an important part of weight management alongside treatment. A balanced diet can help you meet your nutritional needs while you are losing weight.
Prioritising protein, eating balanced meals and staying hydrated can be more useful than focusing only on a calorie number.
If you want a specific calorie target, discuss it with your prescriber or a registered dietitian who can consider your health, activity level and nutritional needs.
Mounjaro Prices for All Doses
Each pen contains four weekly doses, so one pen covers roughly four weeks. If you stayed on the same strength for 52 weeks, you would need thirteen pens rather than twelve.
Prices generally increase with strength, so this is worth considering when planning the cost of treatment. Each Mounjaro pen has a label showing its expiry date, so check it before use.
Before first use, store Mounjaro in the refrigerator at 2°C to 8°C. Do not freeze it. After first use, the KwikPen may be stored at a temperature not above 30°C for up to 30 days in line with the manufacturer's instructions. After this period, it should be discarded.
Keep the pen protected from direct sunlight and follow the storage instructions provided with the medicine.
Needles and a sharps bin are bought separately because the KwikPen is supplied without needles. A new compatible single use needle should be used for every injection.
Prices are correct at the time of writing and the live price at checkout always takes precedence.
Who Can Be Prescribed Mounjaro
Private prescribing generally follows the licensed criteria. For weight management, Mounjaro may be considered for adults with a BMI of 30 or above, or 27 or above where there is a weight related condition such as high blood pressure, type 2 diabetes, high cholesterol or obstructive sleep apnoea.
Lower BMI thresholds, usually reduced by around 2.5 kg/m², are recommended for people from South Asian, Chinese, other Asian, Middle Eastern, Black African and African Caribbean backgrounds.
Meeting a BMI threshold does not automatically mean Mounjaro is suitable. A qualified prescriber needs to consider your medical history, other medicines, health conditions and individual circumstances before making a prescribing decision.
Mounjaro should not be used during pregnancy. If you are planning a pregnancy, speak to your prescriber because treatment should be stopped at least 1 month before a planned pregnancy.
If you are breastfeeding, speak to your doctor or prescriber before using Mounjaro so they can consider whether treatment is appropriate for you.
Anyone with a known serious allergy to tirzepatide or any of the ingredients should not use Mounjaro. If you have a history of pancreatitis, severe digestive problems or other significant health conditions, tell your prescriber before treatment.
Mounjaro can cause side effects, particularly digestive symptoms such as nausea, diarrhoea, vomiting, constipation and abdominal discomfort. Speak to a healthcare professional if you experience severe or persistent symptoms.
Other prescription weight loss treatments may be discussed if Mounjaro is not suitable for you.
