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
28 Stone to Kg — Instant Conversion & Health Context
28 stone is equal to 177.78 kg. If you need to convert your weight between stone and kilograms, use our free weight converter above for gradual improvement in both directions. The kg to stone conversion is straightforward once you know the formula: simply multiply your stone weight by 6.35029. Understanding your weight in metric units helps you track progress consistently and compare your measurements against NHS health guidelines.
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.
How to Convert 28 Stone to Kilograms
To convert 28 stone to kg, multiply 28 by 6.35029. This gives you 177.78 kg. The metric to imperial weight conversion works in both directions: if you need to convert kilograms to stone, simply divide the kg figure by 6.35029.
- 28 stone = 177.78 kg
- Formula: stone × 6.35029 = kg
- Reverse formula: kg ÷ 6.35029 = stone
- 1 stone always equals exactly 14 pounds
- So 28 stone also equals 392 pounds
Our weight converter tool above handles these calculations instantly, allowing you to switch between stone, kilograms, and pounds without a UK pharmacy maths. This is particularly useful when tracking your weight or comparing UK measurements against kilogram to stone conversion charts used in healthcare settings.
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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 and Health Context at 28 Stone
At 28 stone (177.78 kg), your BMI depends on your height. For an average UK adult height of 5ft 7in (170 cm), a weight of 28 stone gives a BMI of approximately 38.7, which falls into the severely obese category according to NHS guidelines. This weight range carries increased health risks including type 2 diabetes, cardiovascular disease, and joint problems.
The healthy weight range for someone 5ft 7in tall is approximately 47–63 kg (7st 5lbs to 9st 13lbs). Even losing 10–15% of body weight at this level can significantly improve health markers. Use our free BMI calculator above to check your personal BMI at your actual height, and explore evidence-based weight management options with your GP.
- 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 28 stone in kg exactly?
28 stone equals 177.78 kg. To convert any stone weight to kilograms, multiply the stone figure by 6.35029. So 28 × 6.35029 = 177.78 kg. Our weight converter above does this calculation instantly for you.
Is 28 stone a healthy weight?
At 28 stone (177.78 kg), the health implications depend on your height. For most UK adults, this weight would result in a BMI in the obese or severely obese range according to NHS classifications. Your GP can provide personalised advice about healthy weight for your individual circumstances.
How many pounds is 28 stone?
28 stone equals 392 pounds exactly (since 1 stone = 14 pounds). You can also express this as 28 stone 0 pounds. If you need to convert between all three units (stone, pounds, and kg), our free weight converter handles all directions.
What's the healthy weight range for someone at 28 stone?
The healthy weight range depends on your height. For an average UK adult height of 5ft 7in, healthy weight is approximately 47–63 kg (7st 5lbs to 9st 13lbs). Use our free BMI calculator to find the healthy weight range for your specific height.
How does 28 stone compare to average UK weight?
The average UK adult weighs around 82 kg (12st 13lbs). At 28 stone (177.78 kg), you're significantly above this average. However, weight alone doesn't determine health — factors like muscle mass, fitness, and individual health conditions all matter. Your GP can give you personalised health advice.
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.