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's 150kg in Stone?
150 kilograms converts to 23 stone and 8 pounds (23st 8lbs) using the standard UK weight conversion. At this weight, understanding your BMI and how it compares to NHS healthy weight guidance is important for your health planning. Whether you're tracking your weight for health reasons or simply need the conversion for UK measurements, this guide provides the exact conversion plus BMI context and practical health information. Use our free weight converter above to switch between kg, stone, and pounds instantly.
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.
150kg Conversion to Stone and BMI Context
150kg = 23 stone 8 pounds (23st 8lbs)
To convert 150kg to stone, divide by 6.35029. This gives exactly 23.65 stone, which breaks down as 23 full stones plus 0.65 × 14 pounds = 8 pounds remainder.
At 150kg, your BMI depends on your height. For example:
- At 1.70m (5ft 7in): BMI = 51.9 (severely obese)
- At 1.75m (5ft 9in): BMI = 48.9 (severely obese)
- At 1.80m (5ft 11in): BMI = 46.3 (severely obese)
According to NHS guidelines, a healthy BMI sits between 18.5 and 24.9. At 150kg, weight loss support from your GP or a specialist weight management service may be recommended. Calculate your personal BMI using our free BMI calculator above to see where you stand.
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.
Weight Loss Support and Next Steps
If you're at 150kg and concerned about your health, your GP can assess your individual circumstances and discuss weight management options. The NHS offers a tiered approach: tier 1 includes self-help tools and digital programmes; tier 2 involves behaviour change support; tier 3 offers specialist multidisciplinary weight management services where prescription medications like GLP-1 injections may be considered.
Weight loss of even 5–10% of body weight—roughly 7.5–15kg from 150kg—can meaningfully improve health markers like blood pressure, blood sugar, and cholesterol. Sustainable weight loss combines dietary changes, increased physical activity, and behavioural support. Track your progress with our free progress tracker as you work towards your health goals.
- 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 150kg to stone and pounds?
Divide 150 by 6.35029 to get stone. 150 ÷ 6.35029 = 23.65 stone. The whole number is 23 stones; multiply the decimal (0.65) by 14 to get pounds: 0.65 × 14 = 9.1 pounds, which rounds to 8–9 pounds. So 150kg = 23 stone 8–9 pounds. Use our weight converter above for instant conversions.
What is the BMI at 150kg?
BMI at 150kg depends on height. At average UK heights: 1.70m = BMI 51.9; 1.75m = BMI 48.9; 1.80m = BMI 46.3. All fall in the severely obese range. Use our free BMI calculator above to enter your exact height and get your personal BMI result and NHS health context.
Is 150kg a healthy weight?
According to NHS guidelines, a healthy BMI is 18.5–24.9. At 150kg, you would need to be approximately 2.45m (8ft) tall to fall in the healthy range, which is unrealistic for adults. Your GP can provide personalised health advice based on your height, age, fitness level, and medical history.
What weight loss support is available on the NHS?
The NHS offers tiered weight management: tier 1 digital tools, tier 2 behaviour change programmes, tier 3 specialist multidisciplinary services (where prescription weight loss medications may be prescribed), and tier 4 bariatric surgery for severe obesity. Ask your GP about referral to your local tier 3 service.
How much weight would I need to lose to reach a healthy BMI?
This depends on your height. For someone 1.75m tall, a healthy BMI (18.5–24.9) corresponds to a weight range of 56.5–76.2kg. Losing even 10–15% of 150kg (15–22.5kg) would significantly improve health markers and reduce disease risk. Your GP can help set realistic, sustainable goals.
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.