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
15.5 Stone to Kg — Instant Conversion
15.5 stone is equal to 98.4 kilograms. This conversion uses the standard UK to metric formula: stone multiplied by 6.35029 equals kilograms. If you need to convert between different weight units regularly, our free weight converter above makes it simple to switch between stone, pounds, and kg instantly. Understanding your weight in both metric and imperial measurements is useful for health tracking, NHS appointments, and international contexts.
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.
Conversion Table — 15.5 Stone and Nearby Values
Use this quick reference table to see how 15.5 stone compares to nearby weights in both kilograms and pounds:
- 15 stone = 95.3 kg (211.6 lbs)
- 15.3 stone = 97.1 kg (214.1 lbs)
- 15.5 stone = 98.4 kg (216.8 lbs)
- 15.7 stone = 99.6 kg (219.6 lbs)
- 16 stone = 101.6 kg (224.0 lbs)
Conversion formula: To convert any weight from stone to kg to stone, divide the kilogram value by 6.35029. Alternatively, multiply stone by 6.35029 to get kilograms. For a more detailed kilogram to stone conversion across a full range, use the weight converter tool on this page.
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.
BMI Context at 15.5 Stone — What This Weight Means
At 15.5 stone (98.4 kg), your BMI depends on your height. For example, at an average UK adult height of 5ft 8in (173 cm), a weight of 15.5 stone gives a BMI of approximately 33.8 — falling into the obese (Class I) category according to NHS guidelines. However, at 5ft 11in (180 cm), the same weight results in a BMI of around 31.2. For South Asian, Chinese, Black African, or Black Caribbean adults, lower BMI thresholds apply, and health risks increase at lower weights. Calculate your personal BMI using our free BMI calculator above to understand what your weight means for your individual health profile.
- 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 15.5 stone in kilograms exactly?
15.5 stone equals 98.4 kilograms (rounded to one decimal place). The exact calculation is 15.5 × 6.35029 = 98.43 kg. This conversion is based on the standard 1 stone = 6.35029 kg formula used in UK health and fitness contexts.
Is 15.5 stone a healthy weight?
Whether 15.5 stone is healthy depends on your height, age, ethnicity, and overall health. At average UK heights, this weight typically falls into the overweight or obese category. Your GP or a healthcare professional can assess your individual health risk. Use our BMI calculator above to check your personal BMI and see where you fall in the NHS guidelines.
How do I convert 15.5 stone to pounds?
15.5 stone equals 216.8 pounds (15.5 × 14 = 217 lbs). You can use our free weight converter to instantly switch between stone, pounds, and kilograms without a UK pharmacy calculation.
What weight-related health conditions might affect someone at 15.5 stone?
At this weight, individuals may have increased risk of type 2 diabetes, high blood pressure, cardiovascular disease, and sleep apnoea, depending on height and distribution of weight. Your GP can assess your individual risk factors and recommend appropriate support, which may include lifestyle changes or referral to specialist weight management services.
Can I use 15.5 stone as a baseline for weight loss tracking?
Yes. Recording your weight in stone is a useful baseline for tracking progress. Many people find it helpful to log weight regularly using both stone and kilograms. Our free progress tracker on this page helps you track weight loss over time and see changes in both metric and imperial units.
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.