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 130kg in Stones and Lbs? BMI at Different Heights
130kg converts to 20 stone 6.3 lbs in UK measurements. However, your BMI at this weight depends entirely on your height — the same weight gives very different BMI results for different people. Below are example BMI values at common UK heights, showing you exactly where you'd fall on the NHS health scale. Use our free BMI calculator above to find your exact BMI instantly, or continue reading to understand your weight in context.
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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.
BMI at 130kg — Examples at Different Heights
At 130kg, your BMI ranges from approximately 17.5 to 26.5 depending on your height. Here's how this weight translates across common heights:
- 160cm (5ft 3in): BMI 50.7 — Severely obese (Class III)
- 170cm (5ft 7in): BMI 44.8 — Severely obese (Class III)
- 175cm (5ft 9in): BMI 42.5 — Severely obese (Class III)
- 180cm (5ft 11in): BMI 40.1 — Severely obese (Class III)
- 185cm (6ft 1in): BMI 37.9 — Obese (Class II)
- 190cm (6ft 3in): BMI 35.8 — Obese (Class II)
These examples show why height matters so much when interpreting weight. At 190cm, 130kg represents a lower health risk than at 160cm. To convert kilograms to stone accurately, divide by 6.35 — so 130kg ÷ 6.35 = 20.47 stone, which is 20 stone and 6.3 lbs. Try our free weight converter above to switch between metric to imperial weight instantly.
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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
According to NHS guidelines, a healthy BMI sits between 18.5 and 24.9. At 130kg, most adults would fall into the obese or severely obese category, though this depends entirely on height and frame. The key point: BMI is a screening tool, not a diagnosis. It doesn't account for muscle mass, bone density, age, or where fat is stored on your body. An athlete with significant muscle can have a high BMI but excellent health. If you're 130kg and concerned about your health, your GP can assess your individual situation — they'll consider your waist measurement, blood pressure, blood sugar, and family history, not just BMI alone. These factors together paint a much clearer picture of your health risk than weight alone.
- 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.
How do I convert 130kg to stones and pounds?
Divide 130kg by 6.35029 to get stone. 130 ÷ 6.35 = 20.47 stone, which equals 20 stone and 6.3 lbs. Use our weight converter above to switch between kg, stone, and lbs instantly. The stone to kg conversion works both ways — simply multiply stone by 6.35 to get kilograms.
Is 130kg overweight or obese?
At 130kg, your health category depends on your height. Most adults at this weight would be classified as obese or severely obese according to NHS guidelines. However, BMI is just one screening tool — your GP considers your height, waist circumference, blood pressure, and other health markers to give you a full picture of your health.
What BMI is 130kg at 180cm tall?
At 180cm height, 130kg gives a BMI of approximately 40.1, which falls into the severely obese category (Class III). However, your GP can assess whether you need support with weight management — they'll consider your overall health, not just BMI alone.
What's a healthy weight at my height if I weigh 130kg?
A healthy weight depends on your height. Use our free BMI calculator above — enter your height and current weight to see the healthy weight range for you. For most adults, a healthy BMI (18.5–24.9) equates to a specific weight range. Your GP can also discuss a realistic weight target based on your individual health.
Can I lose weight safely from 130kg?
The NHS recommends losing weight at 0.5–1kg per week for sustainable results — this typically requires a calorie deficit of around 500 kcal daily. This means losing roughly 2–4kg per month. If you're interested in weight management support, your GP can discuss options from lifestyle changes to specialist services. Track your progress using our free progress tracker to stay motivated throughout your journey.
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.