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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150kg to Stone — BMI and NHS Health Context
150kg converts to approximately 23 stone 8 pounds in UK measurements. However, your BMI at this weight depends entirely on your height — the same weight gives very different BMI values for different people. Whether 150kg is a healthy weight for you depends on your height and individual health factors. Let's look at what BMI this weight produces at various heights, and what the NHS categories mean.
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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.
150kg BMI at Different Heights
150kg in stone and pounds = 23 stone 8 lbs (approximately 23.6 stone).
Your BMI at 150kg varies significantly by height. Here are examples:
- At 160cm (5ft 3in): BMI = 58.6 (Severely obese — Class III)
- At 170cm (5ft 7in): BMI = 51.0 (Severely obese — Class III)
- At 175cm (5ft 9in): BMI = 48.9 (Severely obese — Class III)
- At 180cm (5ft 11in): BMI = 46.3 (Severely obese — Class III)
- At 190cm (6ft 3in): BMI = 41.5 (Severely obese — Class III)
Use our free BMI calculator above to find your exact BMI by entering your height and weight. The NHS categorises BMI of 40 and above as severely obese (Class III), which indicates increased health risks.
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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 BMI Categories and Health Context
According to NHS guidelines, a BMI of 40 or above is classified as severely obese (Class III obesity), and at 150kg, most adults fall into this category regardless of their height. This classification carries significant health risks including type 2 diabetes, cardiovascular disease, high blood pressure, and certain cancers.
However, BMI has limitations — it doesn't account for muscle mass or where fat is stored on your body. Your GP can provide personalised health advice. If you're concerned about your weight and health, your GP can discuss options including lifestyle changes, NHS weight management services (tier 3 specialist support), or prescription weight loss treatment if you're eligible.
- 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 150kg in stone and pounds?
150kg equals approximately 23 stone 8 pounds (or 23.6 stone). Use the weight converter on this page to convert between kg, stone, and lbs instantly for precise conversions.
Is 150kg overweight for my height?
At 150kg, BMI falls into the severely obese range (Class III) for all adult heights. Whether this impacts your health depends on your overall fitness, muscle mass, and medical history. Your GP can give personalised advice based on your individual circumstances.
What BMI is 150kg?
BMI at 150kg ranges from approximately 41.5 to 58.6 depending on your height. At 175cm (5ft 9in), it's around 48.9. Calculate your exact BMI using our free BMI calculator above by entering your height.
What are the NHS BMI categories?
NHS categories are: underweight (below 18.5), healthy weight (18.5–24.9), overweight (25–29.9), obese Class I (30–34.9), obese Class II (35–39.9), and severely obese Class III (40+). Lower thresholds apply for South Asian and Black African heritage adults.
Can I lose weight safely from 150kg?
Yes. The NHS recommends losing 0.5–1kg per week for sustainable results through a calorie deficit, increased physical activity, and dietary changes. Our GLP-1 weight loss calculator can help estimate potential outcomes if prescription weight loss treatment is an option for you. Always discuss weight loss plans with your GP.
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.