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
What Is 150 Kg In Stone?
150 kg converts to 23 stone and 8 pounds (23st 8lbs) using the standard UK weight conversion. This represents a weight well above the NHS healthy weight range for most adults. Whether you're tracking your own weight, understanding health metrics, or working with NHS guidance, knowing your weight in stone is essential for UK health advice. Our free weight converter above lets you switch between kilograms, stone, and pounds instantly. Understanding where your weight sits in relation to NHS health thresholds is an important part of managing your wellbeing.
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.
150 Kg In Stone And NHS Health Context
At 150 kg (23st 8lbs), your weight sits significantly above the NHS healthy weight range for adults. A healthy BMI falls between 18.5 and 24.9 according to NHS guidelines. At this weight, your BMI will depend on your height — for example, a person 1.75m tall (5ft 9in) with a weight of 150 kg would have a BMI of approximately 49, which falls into the severely obese category (BMI 40+).
If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds due to higher health risks at the same weight. Being at this weight increases the risk of type 2 diabetes, cardiovascular disease, high blood pressure, and joint problems. Your GP can provide personalised health advice about what your weight means for your individual health and what steps might help.
- NHS healthy BMI range: 18.5–24.9
- At 150 kg, BMI depends on your height
- Weight increases health risks significantly
- GP assessment is recommended
Clinically BackedWeight Loss
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.
Using Our Weight Converter And Next Steps
Use our free weight converter at the top of this page to check your exact weight in stone and pounds instantly. Our BMI calculator will also show you your personal BMI and how it compares to NHS health categories — simply enter your height and current weight to see where you sit on the NHS scale.
If you're looking to manage your weight, the NHS recommends starting with your GP, who can discuss your options including lifestyle changes, structured weight management programmes, and — if appropriate — prescription weight loss support through specialist services. Even a modest reduction in weight (5–10%) can bring real health benefits. Track your progress using our free progress tracker, and remember that sustainable weight loss typically happens at a rate of 0.5–1 kg per week.
- 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 150 kg to stone?
Divide 150 by 6.35029. This gives 23.62 stone, which equals 23 stone and 8.7 pounds (23st 8lbs). Use our free weight converter above for instant conversions between kg, stone, and pounds.
Is 150 kg considered obese in the UK?
At 150 kg, you're likely in the obese or severely obese category according to NHS guidelines — but this depends on your height. Your GP can assess your individual health and discuss next steps with you.
What is the NHS healthy weight range?
The NHS healthy BMI range is 18.5–24.9. For South Asian, Chinese, Black African, or Black Caribbean adults, the threshold is 18.5–22.9. Your GP can advise on your personal healthy weight range based on your height and health profile.
How much weight would I need to lose to reach a healthy range?
This depends on your height. Use our free BMI calculator to enter your height and see your personal healthy weight range. Your GP or a specialist weight management service can create a personalised plan.
What support is available in the UK for weight management?
The NHS offers tier 1 self-help tools, tier 2 community programmes, and tier 3 specialist weight management services. Private support includes online prescribing services. Your GP can discuss options suitable for you.
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.