The UK's most complete GLP-1 guide
Every Question Answered. Every Side Effect Explained.
- How GLP-1 medications work
- Mounjaro vs Wegovy compared
- Injection instructions
- Side effects & solutions
- What to eat on treatment
- FAQs answered
Free tracker included with every download this week
What Does 11 Stone 9 Pounds Mean for Your Health?
11 stone 9 pounds is equivalent to approximately 74.3 kg. Whether this weight is healthy for you depends on your height, age, and overall health. Using NHS health guidance and our free BMI calculator, you can assess where your weight sits relative to healthy weight ranges. This UK health guide explains what this weight means and how to evaluate your personal health status.
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Calculate Your BMI Instantly
Enter your height and weight below. Supports both imperial (stone & lbs) and metric (kg). Results include NHS category, healthy weight range, and ethnicity adjustments.
What Is BMI and Why Does It Matter?
Body Mass Index (BMI) is the most widely used screening tool for assessing whether your weight falls within a healthy range. Used by the NHS, GPs, and weight management services across the UK, BMI provides a quick snapshot of your weight relative to your height. The formula is simple: your weight in kilograms divided by your height in metres squared (kg/m²).
While BMI isn't a perfect measure — it doesn't account for muscle mass, bone density, or fat distribution — it remains the standard first step in identifying potential weight-related health risks including type 2 diabetes, cardiovascular disease, high blood pressure, and certain cancers.
The NHS also recommends adjusted thresholds for people of South Asian, Chinese, or Black African heritage — a BMI of 23 or above is classified as overweight, and 27.5 as obese. Our calculator includes this adjustment as a one-click toggle.
Converting 11 Stone 9 Pounds to Kilograms and BMI
11 stone 9 pounds converts to approximately 74.3 kg using standard UK weight conversion. To calculate this: (11 × 6.35029) + (9 × 0.453592) = 74.3 kg. According to NHS guidance, whether this weight is healthy depends entirely on your height. For example, at 5ft 6in (168cm), a weight of 74.3 kg gives a BMI of approximately 24, which falls in the healthy weight range (18.5–24.9). However, at 5ft 2in (157cm), the same weight would give a BMI of around 27.8, which NHS classifies as overweight. Use our free BMI calculator above to check your specific BMI instantly — simply enter your height and weight to see where you stand according to NHS categories.
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How It Works
Three simple steps to understand your weight and take action.
Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.
If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.
Use our progress tracker to log your weight weekly, visualise your journey with charts, and stay motivated — all stored privately in your browser.
Free Weight Loss Tools & Guides
Everything you need to understand your weight, explore medication options, and track your progress — completely free.
Health Context and Next Steps
If you're 11 stone 9 pounds and concerned about your weight, the first step is understanding your personal BMI and waist circumference. Both matter for health risk assessment. Our free weight converter and BMI calculator provide instant clarity on whether your weight sits in the healthy, overweight, or obese category for your height. If your BMI indicates you're overweight or obese, speaking with your GP is recommended. They can assess your overall health, discuss any weight-related health conditions, and explore management options — which may include lifestyle changes, dietary support, or in some cases, prescription weight management treatments. Weight management is a journey, and professional guidance personalises the approach to your individual circumstances.
- Dual GIP/GLP-1 receptor agonist
- Up to 22.5% body weight loss (SURMOUNT-1)
- Weekly injection, dose escalation over 20+ weeks
- Available via private prescription in the UK
- Doses: 2.5mg → 5mg → 7.5mg → 10mg → 12.5mg → 15mg
- GLP-1 receptor agonist
- Up to 15–17% body weight loss (STEP trials)
- Weekly injection, 5-step dose escalation
- NHS & private prescription available
- Doses: 0.25mg → 0.5mg → 1mg → 1.7mg → 2.4mg
Mounjaro vs Wegovy: Head-to-Head
A side-by-side comparison of the two most popular GLP-1 weight loss medications available in the UK.
| Feature | Mounjaro | Wegovy |
|---|---|---|
| Drug class | Dual GIP/GLP-1 agonist | GLP-1 agonist |
| Active ingredient | Tirzepatide | Semaglutide |
| Avg. weight loss | 15–22.5% | 12–17% |
| Key trial | SURMOUNT-1 (2022) | STEP 1 (2021) |
| Max dose | 15 mg weekly | 2.4 mg weekly |
| Escalation period | 20–32 weeks | 16–20 weeks |
| Administration | Weekly injection (pen) | Weekly injection (pen) |
| NHS availability | Private prescription only | NHS & private |
| Approx. private cost | £150–£250/month | £150–£300/month |
| Common side effects | Nausea, diarrhoea, constipation | Nausea, vomiting, diarrhoea |
Data sourced from SURMOUNT-1 and STEP 1 clinical trials. Costs are approximate and vary by provider. Always consult a prescriber.
Am I Eligible for Weight Loss Medication?
In the UK, eligibility for GLP-1 weight loss medications like Mounjaro and Wegovy is based on your BMI and overall health profile.
- BMI of 30 or above (obese)
- Age 18 or over
- No contraindicated conditions
- Committed to lifestyle changes
- BMI of 27 or above
- Plus type 2 diabetes
- Or high blood pressure
- Or obstructive sleep apnoea
Use our BMI calculator to check whether your BMI falls within the eligible range.
How We Built These Tools
Every calculator and guide on myweightcheck is built with accuracy and transparency in mind. Our BMI calculator uses the standard WHO formula with NHS-aligned category thresholds. Our GLP-1 projections are modelled on published clinical trial data from SURMOUNT and STEP studies.
All data stays on your device. We don't require sign-ups, and we don't store your health information on any server. Your progress tracker saves data locally in your browser using localStorage, so only you can see it.
We're based in the UK and our tools are designed specifically for UK users — supporting stone & lbs by default, referencing NHS guidelines, using NICE-approved medication data, and linking to GPhC-registered pharmacies.
Frequently Asked Questions
Common questions about BMI, weight loss medications, and our free UK tools.
Is 11 stone 9 pounds a healthy weight?
It depends on your height. At 5ft 6in, 11 stone 9 pounds gives a BMI of 24 (healthy). At 5ft 2in, the BMI is approximately 28 (overweight). Use our free BMI calculator to check your personal BMI based on your exact height.
How do I convert 11 stone 9 pounds to kg?
11 stone 9 pounds equals approximately 74.3 kg. The calculation is: (11 × 6.35029) + (9 × 0.453592). Our free weight converter above can do this instantly for any weight.
What is the healthy weight range for my height?
The NHS healthy weight range depends on your height. For example, at 5ft 8in, healthy weight is approximately 55–74 kg (8st 8lbs–11st 10lbs). Calculate your personal healthy range using our free BMI calculator, which shows the exact range for your height.
Should I lose weight at 11 stone 9 pounds?
Whether weight loss is advisable depends on your BMI, health conditions, and GP assessment. If your BMI indicates overweight or obesity, or you have weight-related health conditions, your GP can discuss personalised options. These may include lifestyle changes, dietary support, or—if eligible—prescription weight management treatment.
What weight loss options are available if I'm overweight?
Options include lifestyle changes (diet and exercise), NHS weight management programmes, or prescription treatments like GLP-1 medications (Wegovy, Mounjaro). Eligibility depends on your BMI and health conditions. Our GLP-1 weight loss calculator can help estimate potential outcomes if you're considering this approach with medical support.
Ready to take control of your weight loss journey?
Start with a free BMI check, explore your GLP-1 options, or begin tracking your progress today. No sign-up. No cost. Just results.