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 Is 15 Stone 7 Lbs in Health Terms?
15 stone 7 lbs is equivalent to approximately 98.4 kg. For most UK adults, this weight falls into the overweight or obese category depending on your height — but what matters is understanding your personal BMI and how this weight relates to your individual health. This uk health guide walks you through the numbers, NHS guidance, and what this weight means for your wellbeing. Use our free BMI calculator to find your personal BMI instantly based on your height and weight.
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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.
Understanding Your Weight: NHS Guidance and Health Context
At 15 stone 7 lbs (98.4 kg), your health risk depends entirely on your height. For example, at 5ft 8in (173cm), this weight gives a BMI of approximately 31, which falls into the obese category according to NHS guidelines. However, at 6ft 2in (188cm), the same weight produces a BMI of around 26.5, which is in the healthy weight range.
The NHS recommends a healthy BMI between 18.5 and 24.9 for most UK adults. Adults of South Asian, Chinese, Black African, or Black Caribbean heritage face higher health risks at lower BMI levels, so different thresholds may apply to you. If your BMI is 25 or above, your GP may recommend weight management support as part of broader health guidance, particularly if you have weight-related health conditions such as type 2 diabetes, high blood pressure, or sleep apnoea.
Calculate your personal BMI now using our weight converter and BMI calculator — this will give you a clear picture of where you sit relative to NHS healthy weight 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.
Taking Action: Support and Resources Available in the UK
If you're concerned about your weight, your first step is to speak with your GP, who can assess your individual health and discuss personalised weight management options. The NHS Weight Loss Plan is a free, evidence-based resource available to all UK adults, offering practical guidance on diet, physical activity, and behaviour change.
For those eligible under NHS guidance, specialist weight management services (tier 3 and tier 4) are available through your local integrated care board, though waiting times vary by region. Private weight loss support, including prescription medications and online consultations, is also accessible. Use our free progress tracker to monitor your weight changes over time, helping you stay motivated on your health journey.
- 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 15 stone 7 lbs in kilograms?
15 stone 7 lbs equals approximately 98.4 kg. To convert: multiply the stone by 6.35029, then add pounds multiplied by 0.453592. This metric weight is commonly used in NHS clinical records and health assessments in the UK.
What BMI does 15 stone 7 lbs give me?
Your BMI at 15 stone 7 lbs depends on your height. For example, at 5ft 8in you'd have a BMI of around 31 (obese); at 6ft 0in around 27.6 (overweight). Use our free BMI calculator to find your exact BMI by entering your height and weight.
Is 15 stone 7 lbs overweight or obese?
Whether this weight is overweight or obese depends entirely on your height. The NHS defines these categories by BMI rather than absolute weight. Calculate your personal BMI to find out where you sit — overweight starts at BMI 25, obesity at BMI 30.
What is a healthy weight for me in the UK?
A healthy weight depends on your height and individual health. The NHS recommends a BMI between 18.5 and 24.9. Your GP can advise on a target weight suitable for your health conditions and circumstances. Use our BMI calculator to find your healthy weight range for your height.
Where can I get weight management support in the UK?
Start with your GP, who can refer you to NHS weight management services if appropriate. The free NHS Weight Loss Plan offers evidence-based guidance. Private support, including prescription weight loss medications, is available through GPhC-registered online services following clinical assessment.
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.