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
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What Is 82.5 Kg in Stone and Pounds?
82.5 kg is equivalent to 13 stone and 0.2 pounds in UK measurements. However, whether this weight is healthy depends entirely on your height. Using our free BMI calculator above, you can find your personal BMI instantly. The same weight gives very different BMI results for someone who is 5ft 4in compared to someone who is 6ft 2in. This guide shows you how to convert kilograms to stone, explains what your BMI means, and helps you understand where your weight falls according to NHS health guidelines.
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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.
82.5 Kg to Stone Conversion and BMI at Different Heights
To convert 82.5 kg to stone and pounds, divide 82.5 by 6.35029. This gives you 13 stone and 0.2 pounds. You can also use our free weight converter on this page to switch between kg, stone, and lbs instantly.
However, the health significance of 82.5 kg depends on your height. Here are example BMI results for 82.5 kg at common UK heights:
- At 160 cm (5ft 3in): BMI = 32.2 (Obese, Class I — NHS category)
- At 165 cm (5ft 5in): BMI = 30.3 (Obese, Class I — NHS category)
- At 170 cm (5ft 7in): BMI = 28.5 (Overweight — NHS category)
- At 175 cm (5ft 9in): BMI = 26.9 (Overweight — NHS category)
- At 180 cm (5ft 11in): BMI = 25.3 (Healthy weight — NHS category)
- At 185 cm (6ft 1in): BMI = 24.1 (Healthy weight — NHS category)
Use our free BMI calculator above to enter your exact height and see your personal BMI instantly.
Clinically BackedWeight Loss
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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.
Understanding NHS BMI Categories and Limitations
The NHS classifies adults into BMI ranges: Underweight (below 18.5), Healthy weight (18.5–24.9), Overweight (25.0–29.9), Obese Class I (30.0–34.9), Obese Class II (35.0–39.9), and Severely obese (40 and above). At 82.5 kg, whether you fall into Overweight or Obese depends on your height — both are important health markers.
However, BMI has limitations. It does not distinguish between muscle and fat, so athletes may have high BMI but low body fat percentage. BMI also does not account for where fat is stored — waist circumference matters. For South Asian, Chinese, Black African, or Black Caribbean adults, the NHS recommends lower BMI thresholds due to higher health risks at the same BMI. Always discuss your personal weight with your GP for tailored advice.
- 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 82.5 kg in stone and pounds exactly?
82.5 kg equals 13 stone and 0.2 pounds (or approximately 13 stone 0 lbs). To convert kilograms to stone, divide by 6.35029. You can use our free weight converter above for instant conversions between kg, stone, and lbs.
Is 82.5 kg a healthy weight?
It depends on your height. At 82.5 kg, someone who is 5ft 9in would have a BMI of 26.9 (Overweight), while someone 6ft 1in would have a BMI of 24.1 (Healthy weight). Use our BMI calculator above with your actual height to find your personal BMI and NHS category.
What BMI does 82.5 kg give at 5ft 6in?
At 5ft 6in (168 cm), 82.5 kg gives a BMI of 29.2, which falls into the Overweight category according to NHS guidelines. This means there may be health benefits to modest weight loss, though your GP can provide personalised advice.
Can I use kilogram to stone conversion for health decisions?
Weight conversion alone is not enough for health decisions — you need to know your height to calculate BMI. The same weight is healthy for a tall person but overweight for a shorter person. Your GP can assess your overall health, not just weight in stone.
Where can I find my healthy weight range?
Use our free BMI calculator on this page and enter your height. The healthy weight range for your height will be shown. For example, at 5ft 9in, healthy weight is approximately 8st 12lbs to 11st 10lbs (56–74 kg). Your GP can also advise on what's healthy for you personally.
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.