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 Mean for Your Health?
11 stone 9 pounds is equivalent to 74.4 kg in metric measurements. Whether this weight is healthy depends entirely on your height, age, and overall health profile. Using our free weight converter and BMI calculator on this page, you can instantly check what your weight means for you personally. The NHS provides clear guidance on healthy weight ranges, and we'll walk you through how to interpret your results using evidence-based UK health information.
10,000+ calculations today · NHS-aligned thresholds · 100% free
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 to Kilograms
11 stone 9 pounds = 74.4 kg
To break this down: 11 stone equals 69.9 kg, and 9 pounds adds another 4.1 kg, giving you a total of 74.4 kg. This conversion uses the standard UK to metric formula where 1 stone = 6.35 kg and 1 pound = 0.454 kg.
If you need to convert this weight into other units:
- 11 stone 9 = 164.1 lbs (pounds)
- 11 stone 9 = 164 lbs 1.6 oz (pounds and ounces)
Use our free weight converter above to check other weight conversions instantly. Having your weight in kilograms is useful for calculating your BMI and comparing your weight against NHS health thresholds.
Clinically BackedWeight Loss
No appointments. No waiting rooms. Just care — from a UK-regulated online pharmacy.
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.
Is 11 Stone 9 a Healthy Weight?
Whether 11 stone 9 is healthy depends on your height. For example, if you're 5ft 8in (173 cm), this weight gives a BMI of approximately 27.8, which falls into the overweight category according to NHS guidelines (BMI 25.0–29.9). However, if you're taller — say 5ft 10in — your BMI would be around 26.6, still overweight but closer to the healthy range.
The NHS recommends a healthy BMI of 18.5–24.9 for most adults. If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, lower thresholds apply (18.5–22.9). Use the free BMI calculator on this page to check your personal BMI and find out what weight range is healthy for your specific height.
- 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.
What is 11 stone 9 in kilograms?
11 stone 9 pounds equals 74.4 kg. This is calculated by converting 11 stone (69.9 kg) plus 9 pounds (4.1 kg). You can use our free weight converter above to convert between stone, pounds, and kilograms instantly for any weight.
Is 11 stone 9 considered obese?
Whether 11 stone 9 is obese depends on your height and ethnicity. For most adults, obesity starts at a BMI of 30. At 11 stone 9, your BMI would need to be calculated using your height. Use our BMI calculator on this page to check your personal BMI category based on your height.
What is the healthy weight for someone who weighs 11 stone 9?
A healthy weight depends on your height, not just your weight. The NHS recommends a BMI of 18.5–24.9 for most adults. Use the free BMI calculator above to enter your height and find your healthy weight range. Your GP can also provide personalised advice about healthy weight targets for you.
How can I work out my BMI if I weigh 11 stone 9?
BMI is calculated using your weight in kg and your height in metres: BMI = weight ÷ (height²). At 11 stone 9 (74.4 kg), you'd need your height to calculate it. Our free BMI calculator on this page does this instantly — just enter your height and weight to find your BMI and health category.
Can medication help with weight loss if I weigh 11 stone 9?
Prescription weight loss medications like Wegovy (semaglutide) or Mounjaro (tirzepatide) are available in the UK for adults meeting specific eligibility criteria (usually BMI 30+, or 27+ with health conditions). These are prescription-only and require clinical assessment. Try our GLP-1 weight loss calculator on this page to explore potential outcomes — or speak to your GP about options suited to your individual health.
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.