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
15.4 Stone in Pounds — Health Context Guide
15.4 stone is equivalent to 215.6 pounds. Whether this weight is healthy depends entirely on your height. For a person who is 5ft 4in, this weight falls into the overweight category. For someone 6ft 2in, it sits within the healthy range. The NHS provides clear guidance on healthy weight ranges for different heights, and our free BMI calculator above can tell you instantly where your weight sits. Waist measurement also matters for health, separate from weight alone.
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.
Healthy Weight Ranges by Height — 15.4 Stone Context
At 15.4 stone (215.6 lbs or 97.2 kg), whether you're at a healthy weight depends on your height. Here are three real examples:
- 5ft 4in (163 cm): BMI of 37 — falls in the obese range. Healthy range at this height: 7st 12lbs to 10st 2lbs (50–65 kg).
- 5ft 8in (173 cm): BMI of 31.5 — falls in the overweight/obese borderline. Healthy range: 8st 10lbs to 11st 10lbs (55–75 kg).
- 6ft 2in (188 cm): BMI of 25.8 — falls just outside the healthy range into overweight. Healthy range: 9st 12lbs to 13st 2lbs (63–84 kg).
Use our weight converter above to switch between kg to stone and other units. The BMI calculator on this page will show your personal result based on your exact height and weight.
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.
NHS Guidance and Health Monitoring
The NHS recommends a healthy BMI between 18.5 and 24.9 for most UK adults. At 15.4 stone, your health risk depends on both your height and where fat is stored — waist measurement matters too. For men, a waist above 102 cm (40 inches) indicates increased risk. For women, above 88 cm (34.5 inches) signals increased risk.
If you're above the healthy weight range for your height, small changes like increasing physical activity and reviewing your diet can help. Your GP can provide personalised guidance. If you're interested in structured support, the NHS offers weight management services at tier 1, 2, and 3 levels. Our progress tracker can help you log any changes over time.
- 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 15.4 stone in pounds exactly?
15.4 stone equals 215.6 pounds exactly. To convert stone to pounds, multiply by 14 (since 1 stone = 14 pounds). So 15.4 × 14 = 215.6 lbs. You can also convert this to kilograms: 15.4 stone = 97.2 kg using the standard kilogram to stone conversion.
Is 15.4 stone a healthy weight for adults?
It depends entirely on your height. For someone 5ft 8in, 15.4 stone puts you slightly into the overweight range. For someone taller, like 6ft 2in, it may be close to healthy. Use the BMI calculator on this page to find your personal result. BMI combines weight and height to give a health screening score.
What should my healthy weight be if I'm 5ft 8in?
According to NHS guidelines, at 5ft 8in the healthy weight range is approximately 8st 10lbs to 11st 10lbs (55–75 kg). This gives a BMI between 18.5 and 24.9. If you're currently at 15.4 stone, you'd be above this range. Your GP can discuss realistic goals for your individual circumstances.
How do I check if my weight is healthy for my height?
The simplest way is to calculate your BMI using your height and weight. Our free BMI calculator above does this instantly. You can also use NHS weight charts online. Your GP can also assess whether your weight is healthy for you, considering your age, medical history, and other health factors.
What is waist measurement and why does it matter?
Waist measurement indicates where fat is stored on your body. Even at a healthy BMI, carrying extra fat around your middle increases health risks. NHS guidance suggests measuring your waist at the midpoint between your ribs and hip bone. Keeping your waist under 94 cm (37 inches) for men or 80 cm (31.5 inches) for women helps reduce risk.
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.