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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Is 130kg a Healthy Weight? Convert to Stone and Check Your Health Range
130kg is equivalent to 20 stone and 6 pounds in UK measurements. Whether this weight is healthy for you depends entirely on your height, age, and overall health. Using the standard kg to stone conversion formula, we can help you understand where your weight sits on the NHS health scale. The good news: even if your current weight is outside the healthy range, there are practical steps you can take. Let's look at what 130kg means for your health and how to determine your personal healthy weight target.
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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.
Healthy Weight Ranges at Different Heights
At 130kg (20 stone 6lbs), whether you're in a healthy weight range depends on how tall you are. Here are three realistic examples:
- At 5ft 6in (168cm): BMI = 32.1 — falls in the obese category. Healthy range for this height is 50–67kg (7st 12lbs–10st 7lbs).
- At 5ft 10in (178cm): BMI = 30.1 — falls in the obese category. Healthy range for this height is 57–76kg (9st–12st 0lbs).
- At 6ft 2in (188cm): BMI = 28.3 — falls in the overweight category. Healthy range for this height is 64–86kg (10st 1lbs–13st 8lbs).
Use our free BMI calculator above to enter your exact height and see your personal BMI instantly. This gives you a clearer picture of where you sit on the NHS health scale and what your healthy weight target might be.
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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.
NHS Guidance and Next Steps
According to NHS guidelines, a healthy BMI is between 18.5 and 24.9 for most UK adults. If your BMI is above 30 (as it is at 130kg for most heights), your GP may discuss weight management options with you. This doesn't mean you need to panic — it's an opportunity to improve your long-term health. Beyond BMI, the NHS also recommends checking your waist circumference: over 94cm (37in) for men or 80cm (31.5in) for women suggests increased health risk. If you're interested in structured weight loss support, your GP can refer you to NHS weight management services, or you can explore evidence-based approaches like dietary changes and increased activity. Every person's health journey is individual.
- 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 130kg in stone and pounds exactly?
130kg converts to 20 stone and 6 pounds (often written as 20st 6lbs). To calculate kilograms to stone, divide your weight in kg by 6.35 — so 130 ÷ 6.35 = 20.47 stone, which equals 20 stone plus 0.47 × 14 pounds (approximately 6.6 pounds).
Is 130kg healthy weight for a tall person?
At 130kg, even for a taller adult (6ft 2in / 188cm), your BMI would be approximately 28.3, which falls in the overweight category rather than healthy weight. A truly healthy weight at that height would be 64–86kg. However, individual health varies, and a GP can assess your personal risk factors.
How much weight would I need to lose to reach a healthy BMI at 130kg?
This depends on your height. At 5ft 8in, you'd need to reach approximately 75kg to be in the healthy BMI range — a loss of about 55kg (8st 9lbs). Your GP or a weight management service can create a personalised plan. Remember, losing even 5–10% of body weight brings real health benefits.
What if I'm 130kg and have health conditions — does that change things?
Yes. If you have type 2 diabetes, high blood pressure, or other weight-related conditions, your GP may recommend weight management support at a lower BMI threshold than someone without these conditions. These factors are considered in NHS tier 3 weight management services. Always discuss your personal situation with your GP.
Can I use the weight converter and BMI calculator to track my progress?
Absolutely. Our free weight converter helps you track your weight in both kg and stone as you progress. Try our BMI calculator regularly to watch your BMI move into healthier ranges as you reach milestones. We also have a free progress tracker so you can log your weight loss journey over time.
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.