Mounjaro Weight Loss Calculator UK | Cured Pharmacy

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Cheapest Mounjaro Weight Loss Calculator - UK Price

Use our Mounjaro weight loss calculator and get the cheapest UK price from £124.99 with £20 off using code Weightlossnew.

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Weightlossnew £20 off first order using code WEIGHTLOSSNEW

Treatment from £124.99

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Woman using Cured Pharmacy online consultation for weight loss treatment

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Height 175 cm
Weight 82 kg

Your BMI

26.8
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Free · BMI thresholds shown are illustrative. Final eligibility is confirmed by a UK prescriber during your free consultation.

LIVE PRICING

Our Pricing

Pricing Disclaimer: Prices on some pages may not be up to date — the live pricing table below and pricing shown during consultation are official current prices and take precedence over any other figures on the site.

Mounjaro (Tirzepatide)
Weeks 1–4

2.5mg

1 pen • 4 Weeks

£145 £124.99

£31.25 / Per Week

Your starting dose – designed to help your body adjust gently to treatment

⭐ Future Orders at £145
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Mounjaro (Tirzepatide)
Weeks 5–8

5mg

1 pen • 4 Weeks

£179 £159.00

£39.75 / Per Week

First step up – builds on your progress as your body adapts to treatment

⭐ Future Orders at £179
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Mounjaro (Tirzepatide)
Weeks 9–12

7.5mg

1 pen • 4 Weeks

£220 £200.00

£50.00 / Per Week

Mid-range dose – for continued progression and enhanced results

⭐ Future Orders at £220
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Mounjaro (Tirzepatide)
Weeks 13–16

10mg

1 pen • 4 Weeks

£245 £225.00

£56.25 / Per Week

Higher strength dose – supports significant weight loss progress

⭐ Future Orders at £245
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Mounjaro (Tirzepatide)
Weeks 17–20

12.5mg

1 pen • 4 Weeks

£270 £250.00

£62.50 / Per Week

Advanced dose – for patients requiring stronger therapeutic effect

⭐ Future Orders at £270
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Mounjaro (Tirzepatide)
Weeks 21+

15mg

1 pen • 4 Weeks

£287 £267.00

£66.75 / Per Week

Maximum dose – the highest available strength for optimal results

⭐ Future Orders at £287
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Wegovy (Semaglutide)
Weeks 1–4

0.25mg

1 pen • 4 Weeks

£89 £69.00

£17.25 / Per Week

Your starting dose – eases your body into treatment with minimal side effects

⭐ Future Orders at £89
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Wegovy (Semaglutide)
Weeks 5–8

0.5mg

1 pen • 4 Weeks

£99 £79.00

£19.75 / Per Week

First step up – continues building tolerance for long-term success

⭐ Future Orders at £99
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Wegovy (Semaglutide)
Weeks 9–12

1mg

1 pen • 4 Weeks

£119 £99.00

£24.75 / Per Week

Mid-range dose – where most patients start seeing meaningful results

⭐ Future Orders at £119
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Wegovy (Semaglutide)
Weeks 13–16

1.7mg

1 pen • 4 Weeks

£169 £149.00

£37.25 / Per Week

Higher strength – supports accelerated weight loss progress

⭐ Future Orders at £169
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Wegovy (Semaglutide)
Weeks 17+

2.4mg

1 pen • 4 Weeks

£199 £179.00

£44.75 / Per Week

Maximum dose – the highest available strength for optimal weight management

⭐ Future Orders at £199
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Wegovy Oral Pill
Weeks 1–4

1.5mg

1 pen • 4 Weeks

£83.00 £63.00

£20.75 / Per Week

Your starting dose – eases your body into treatment with minimal side effects

⭐ Future Orders at £83.00
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Wegovy Oral Pill
Weeks 5–8

4mg

1 pen • 4 Weeks

£110.00 £90.00

£27.50 / Per Week

First step up – continues building tolerance for long-term success

⭐ Future Orders at £110.00
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Wegovy Oral Pill
Weeks 9–12

9mg

1 pen • 4 Weeks

£140.00 £120.00

£35.00 / Per Week

Mid-range dose – where most patients start seeing meaningful results

⭐ Future Orders at £140.00
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Wegovy Oral Pill
Weeks 13+

25mg

1 pen • 4 Weeks

£199.00 £179.00

£49.75 / Per Week

Maximum dose – the highest available strength for optimal weight management

⭐ Future Orders at £199.00
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Understanding Your Mounjaro Weight Loss Journey: Calculator & Dosing Guide

Published on: June 03, 2026

Our mounjaro weight loss calculator UK tool helps you estimate your treatment timeline, expected weight reduction, and total costs before starting your prescription journey. At Cured Pharmacy, we provide transparent upfront pricing from £135.00 with UK-registered prescribers assessing your suitability during a free 3-minute consultation.

How to Calculate Your Mounjaro Weight Loss Potential

Clinical trial data provides a reliable framework for estimating individual weight loss outcomes with Mounjaro (tirzepatide). In the SURMOUNT-1 trial, participants achieved average weight reductions of 15% (5mg dose), 19.5% (10mg dose), and 22.5% (15mg maintenance dose) over 72 weeks [1]. Your UK prescriber will calculate your starting BMI and target weight during your clinical assessment, determining which dose escalation schedule suits your medical profile.

Individual results vary based on adherence to the dosing schedule, lifestyle modifications, and metabolic factors. A patient weighing 100kg on the 15mg maintenance dose might expect an average reduction of 22.5kg over 18 months, though some participants in clinical trials achieved up to 26% total body weight loss [1]. Your prescriber will discuss realistic expectations during your consultation, ensuring you understand that Mounjaro works best alongside dietary changes and increased physical activity.

Mounjaro Dosing Schedule: Week-by-Week Calculator

Mounjaro follows a structured dose escalation protocol designed to minimise gastrointestinal side effects whilst optimising weight loss efficacy. The standard UK prescribing schedule begins with 2.5mg weekly for four weeks, increasing to 5mg for the next four weeks, then 7.5mg, 10mg, 12.5mg, and finally 15mg maintenance dose [2]. Each dose increase occurs at four-week intervals, allowing your body to adapt to the medication's effects on appetite and glucose regulation.

Your treatment timeline calculator should account for approximately 20-24 weeks to reach the full 15mg maintenance dose, with most patients observing significant weight reduction from week 12 onwards. The KwikPen delivery system contains four pre-filled doses, simplifying your weekly injection routine. Your UK prescriber may adjust this escalation schedule based on your tolerance and clinical response, particularly if you experience persistent nausea or vomiting during dose increases.

Calculating Your Injection Timeline

Each Mounjaro KwikPen contains four single-dose injections, meaning one pen lasts exactly four weeks at a consistent dose. During your escalation phase, you'll require a new pen strength every month as your dose increases. Once you reach your maintenance dose (typically 10mg or 15mg), you'll continue with that same pen strength indefinitely, subject to ongoing prescriber review. Planning your prescription refills around this four-week cycle ensures uninterrupted treatment and maintains the medication's weight loss efficacy.

Mounjaro Cost Calculator: UK Private Prescription Pricing

At Cured Pharmacy, Mounjaro prescriptions start from £124.99 for a four-week supply, with transparent pricing displayed before you complete your clinical assessment. Unlike other providers who reveal costs only after consultation, we believe in upfront transparency so you can calculate your monthly treatment budget accurately. Your total cost depends on your prescribed dose strength, with higher maintenance doses reflecting the increased medication volume per injection.

When calculating your treatment investment, factor in the complete care package included in our pricing: UK prescriber consultation, genuine MHRA-licensed medication, discreet home delivery, and ongoing clinical support. There are no hidden consultation fees or prescription charges. Many patients find that budgeting for 6-12 months of treatment provides the best value, as clinical trials demonstrate maximum weight loss occurs between 52-72 weeks of continuous therapy [1]. Your prescriber will discuss treatment duration during your assessment, helping you plan financially for a complete weight loss programme.

Treatment Active Ingredient Dosing Frequency Average Weight Loss Starting Price
Mounjaro Tirzepatide Once weekly injection Up to 22.5% over 72 weeks From £124.99
Wegovy Semaglutide Once weekly injection Up to 15% over 68 weeks From £69.00
Saxenda Liraglutide Daily injection Up to 8% over 56 weeks From £68.00
Orlistat Orlistat Three times daily oral 5-10% over 12 months From £32.00

BMI Calculator: Am I Eligible for Mounjaro in the UK?

UK prescribing guidelines for Mounjaro typically require a BMI of 30 kg/m² or above, or 27 kg/m² with at least one weight-related comorbidity such as hypertension, type 2 diabetes, or obstructive sleep apnoea [3]. To calculate your BMI, divide your weight in kilograms by your height in metres squared. For example, someone weighing 95kg at 1.75m tall has a BMI of 31 kg/m² (95 ÷ 1.75²), meeting the standard eligibility threshold.

During your free consultation at Cured Pharmacy, our UK-registered prescribers calculate your BMI and assess your complete medical history, including previous weight loss attempts, current medications, and any contraindications to GLP-1 therapy. Certain conditions preclude Mounjaro prescribing, including personal or family history of medullary thyroid carcinoma, multiple endocrine neoplasia syndrome type 2, or severe gastrointestinal disease. Your prescriber will determine your suitability within minutes, providing clear guidance on whether Mounjaro represents an appropriate treatment option for your circumstances.

When Mounjaro May Not Be Suitable

Your prescriber will decline a Mounjaro prescription if your BMI falls below clinical thresholds, if you're pregnant or planning pregnancy, or if you have contraindicated medical conditions. In such cases, alternative weight management options may be more appropriate. Treatments like Wegovy (semaglutide) or Saxenda (liraglutide) follow similar prescribing criteria but may suit different clinical profiles. Orlistat-based medications offer a non-injectable alternative for patients with lower BMI ranges or needle phobia, though efficacy differs significantly from GLP-1 receptor agonists.

Comparing Mounjaro with Other UK Weight Loss Treatments

Mounjaro (tirzepatide) distinguishes itself as the first dual GIP/GLP-1 receptor agonist licensed for weight management in the UK, activating two complementary hormone pathways rather than one [2]. This dual mechanism produces superior weight loss compared to single-pathway GLP-1 agonists in head-to-head trials. The SURPASS-2 study demonstrated that tirzepatide 15mg achieved 12.4kg greater weight reduction than semaglutide 1mg over 40 weeks in patients with type 2 diabetes [4].

When calculating which treatment offers the best value for your weight loss goals, consider both clinical efficacy and practical factors. Wegovy requires similar weekly injections but uses a different active ingredient (semaglutide), whilst Saxenda necessitates daily injections at a lower per-injection cost. Oral medications like Orlistat work through fat absorption blocking rather than appetite suppression, producing more modest weight reductions averaging 5-10% of body weight [3]. Your UK prescriber will help you weigh these options during your consultation, recommending the treatment most likely to achieve your target weight within your budget and lifestyle constraints.

Starting Your Mounjaro Prescription with Cured Pharmacy

Beginning your Mounjaro weight loss calculator UK journey with Cured Pharmacy takes under three minutes. Our online clinical assessment asks targeted questions about your weight history, current health conditions, and medications, allowing our UK-registered prescribers to evaluate your suitability efficiently. Superintendent Pharmacist Tarun Kumar (GPhC 2233073) oversees all clinical decisions, ensuring every prescription meets MHRA guidelines and patient safety standards.

Once approved, your genuine UK-licensed Mounjaro KwikPen ships in 100% discreet packaging, typically arriving within 1-2 working days. We include complete injection instructions, dose escalation guidance, and direct access to our pharmacy team for any questions during your treatment. Unlike high-street pharmacies with limited stock availability, we maintain consistent Mounjaro supplies, ensuring your treatment continues uninterrupted. Our lowest price guarantee means you're getting competitive UK pricing without compromising on clinical care quality or medication authenticity.

What Happens After Your First Prescription

Your prescriber will schedule follow-up assessments at regular intervals, typically every 12 weeks, to monitor your weight loss progress, adjust your maintenance dose if needed, and address any side effects. Continuous prescriber oversight ensures Mounjaro remains clinically appropriate throughout your treatment journey. Most patients continue therapy for 12-18 months to achieve and consolidate their target weight loss, though individual treatment duration varies based on response and goals. You can pause or discontinue treatment at any time in consultation with your prescriber.

Scientific References

  1. Jastreboff, A. M., Aronne, L. J., Ahmad, N. N., et al. (2022). Tirzepatide Once Weekly for the Treatment of Obesity. New England Journal of Medicine, 387(3), 205–216. https://doi.org/10.1056/NEJMoa2206038 [accessed 13 August 2026]
  2. Eli Lilly and Company. (2024). Mounjaro 2.5 mg solution for injection in pre-filled pen: Summary of Product Characteristics. Electronic Medicines Compendium. Retrieved from https://www.medicines.org.uk/emc/product/14298 [accessed 13 August 2026]
  3. National Institute for Health and Care Excellence. (2023). Obesity: identification, assessment and management (CG189). NICE Clinical Guideline. Retrieved from https://www.nice.org.uk/guidance/cg189 [accessed 13 August 2026]
  4. Frías, J. P., Davies, M. J., Rosenstock, J., et al. (2021). Tirzepatide versus Semaglutide Once Weekly in Patients with Type 2 Diabetes. New England Journal of Medicine, 385(6), 503–515. https://doi.org/10.1056/NEJMoa2107519 [accessed 13 August 2026]
  5. NHS. (2026). Tirzepatide: a medicine to manage type 2 diabetes and treat obesity. https://www.nhs.uk/medicines/tirzepatide/ Accessed 13 August 2026.
  6. NHS. (2026). Overweight and obesity in adults. https://www.nhs.uk/conditions/overweight-and-obesity/ Accessed 13 August 2026.
  7. NHS England. (2026). Weight management injections. https://www.england.nhs.uk/ourwork/prevention/obesity/medicines-for-obesity/weight-management-injections/ Accessed 13 August 2026.

Information on this page is for educational purposes only and is not medical advice. All prescription treatments require clinical assessment by a UK-registered prescriber. Always consult a qualified healthcare professional before starting any new medication. Weight loss results vary between individuals and depend on adherence to treatment, dietary modifications, and lifestyle factors. Clinical trial data represents average outcomes and does not guarantee specific results for any individual patient.

Trusted by thousands

Real people, real results

Jane L.

"Brilliant. Lost 4 stone on mounjaro no side effects at all. Cured pharmacy are excellent. Always helpful pens sent out quickly always comes with needles and sterile wipes. If you want to go on GLP-1 go to cured pharmacy. So professional. Thank you cured pharmacy you changed my health and well being."

Ann-Marie

"I absolutely love this product, I have been using 2.5mg as maintenance dose and have managed to control my weight without any side effects and can still eat well balanced meals. The pharmacy is very efficient friendly and helpful I would not purchase from anywhere else."

Sacha W.

"So far I'm really impressed by my results it's crazy cause I'm not snacking like how I used to do and I see my face slimming down already and it's only been 2 and a half weeks. Can't wait to give my feedback in 5 months time thank you cured pharmacy."

Kimberly G.

"Mounjaro has corrected my hormonal weight gain during menopause. I am using it now to maintain that balance. The results for me have been exceptional!"

Jennifer

"Great really helps cure those nasty habits can't wait for my next mounjaro pen."

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Faq

How accurate is a Mounjaro weight loss calculator UK?
Mounjaro weight loss calculators base estimates on clinical trial averages, where participants achieved 15-22.5% body weight reduction depending on dose. Individual results vary based on adherence, lifestyle factors, and metabolic response, so calculators provide guidance rather than guaranteed outcomes.
What dose of Mounjaro will I be prescribed?
All patients start at 2.5mg weekly, escalating every four weeks through 5mg, 7.5mg, 10mg, and 12.5mg to a typical maintenance dose of 10mg or 15mg. Your UK prescriber determines your final maintenance dose based on weight loss response and tolerability during the escalation phase.
How do I calculate the total cost of Mounjaro treatment?
Multiply your monthly prescription cost (from £135.00 at Cured Pharmacy) by your intended treatment duration, typically 12-18 months for optimal results. Budget for approximately 6 months of dose escalation followed by 6-12 months at maintenance dose to achieve clinical trial-comparable weight loss outcomes.
Can I use a Mounjaro BMI calculator before my consultation?
Yes, calculate your BMI by dividing your weight in kg by your height in metres squared. UK prescribing typically requires BMI ≥30 kg/m², or ≥27 kg/m² with weight-related health conditions. Your prescriber will verify eligibility during your clinical assessment.
How long does it take to see results with Mounjaro?
Most patients observe noticeable weight reduction from week 12 onwards, with maximum weight loss occurring between 52-72 weeks of continuous treatment. Your mounjaro weight loss calculator UK timeline should account for gradual, sustained reduction rather than rapid initial drops.
Is Mounjaro available on the NHS or only privately?
Mounjaro for weight management is currently available through private prescription only in the UK. NHS availability remains limited to specialist weight management services in certain regions, with most patients accessing treatment through registered online pharmacies like Cured Pharmacy.
What's included in the £135.00 Mounjaro price at Cured Pharmacy?
Our £135.00 starting price includes your four-week medication supply, UK prescriber consultation, MHRA-licensed genuine Mounjaro KwikPen, discreet home delivery, and ongoing clinical support. There are no hidden consultation fees or prescription charges beyond the stated medication cost.
Can I switch from Wegovy to Mounjaro mid-treatment?
Yes, patients can transition between GLP-1 treatments subject to prescriber approval. Your UK prescriber will calculate an appropriate starting dose based on your current Wegovy dose and treatment response, typically beginning Mounjaro at 2.5mg weekly regardless of previous semaglutide dosing to minimise side effects during the switch.
How accurate is the Mounjaro weight loss calculator UK?
The Mounjaro weight loss calculator UK provides estimates based on clinical trial data where participants lost an average of 15-20% body weight. Individual results vary depending on diet, exercise, starting weight and adherence to treatment. Cured Pharmacy offers personalised support to help you achieve your weight loss goals.
Does Mounjaro price increase as I move up doses?
Yes, Mounjaro pricing increases with higher doses. The 2.5mg starter dose costs £124.99, while the maintenance doses range from £159 for 5mg up to £267 for 15mg. Cured Pharmacy offers the cheapest UK prices across all Mounjaro doses with transparent pricing and no hidden fees.
Can I use the Mounjaro weight loss calculator before buying?
Yes, you can use our Mounjaro weight loss calculator UK tool to estimate your potential results before purchasing. This helps you understand expected weight loss timelines and set realistic goals. Cured Pharmacy provides this free calculator alongside expert pharmacist consultations to support your treatment journey.
Is Mounjaro available on the NHS or only private prescription?
Mounjaro is currently only available through private prescription in the UK due to NHS supply constraints and strict eligibility criteria. Cured Pharmacy offers the cheapest UK price from £124.99 with convenient online consultations, making private treatment affordable and accessible.
How long does Mounjaro take to show weight loss results?
Most people notice initial weight loss within 4-8 weeks of starting Mounjaro, with significant results after 12-16 weeks. The weight loss calculator estimates your progress over 6-12 months based on clinical data. Cured Pharmacy provides ongoing prescriber support to monitor your results and adjust dosing as needed.
Tarun Kumar, Prescribing Pharmacist

Medically reviewed by

Tarun Kumar, Prescribing Pharmacist (GPhC 2233073)

Reviewed on: June 03, 2026

Last reviewed: 13 August 2026

Last updated on 13 August 2026.

Review History

Our experts continually monitor new findings in health and medicine, and we update our articles when new information becomes available.

Why this page was updated on 13 August 2026

Content checked and updated as part of our periodic review, to ensure accuracy and currentness.

Current version (13 August 2026)

Edited by: The Editorial Team

Medically reviewed by:

Tarun Kumar, GPhC No. 2233073, Prescribing Pharmacist


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