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 10.5 Stone in Kilograms?
10.5 stone is equivalent to approximately 66.6 kilograms (66.6kg). In pounds, this converts to around 147 lbs. Understanding your weight in different measurements is helpful when using NHS health guidance, which typically references kilograms, or when comparing your weight to health statistics and BMI charts. Whether you're tracking your health, preparing for a GP appointment, or simply curious about weight conversions, it's useful to know how stone translates across measurement systems used in UK healthcare and everyday life.
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.
Understanding 10.5 Stone in UK Health Context
At 10.5 stone (66.6kg), your health context depends on your height and age. Using our free BMI calculator above, you can instantly check whether this weight falls within the NHS healthy weight range for your specific height. For example, if you're 5ft 6in (168cm) tall, a weight of 10.5 stone gives a BMI of approximately 21.5, which falls comfortably within the healthy weight range of 18.5–24.9 according to NHS guidelines. However, if you're shorter or taller, the same weight may place you in a different category—either underweight, healthy, overweight, or obese.
- Healthy weight range (NHS): BMI 18.5–24.9 for most adults; 18.5–22.9 for South Asian, Chinese, Black African, and Black Caribbean adults
- Individual variation: Your healthy weight depends entirely on your height, age, muscle mass, and individual circumstances
- Beyond BMI: Waist circumference also matters—men should aim for under 94cm (37in), women under 80cm (31.5in)
Use the weight converter on this page to switch between stone, kilograms, and pounds whenever you need to check measurements across different formats.
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.
NHS Weight Guidance and Next Steps
If you're unsure whether 10.5 stone is a healthy weight for you personally, your GP is the best resource for tailored advice. They can assess your individual circumstances, including your age, height, fitness level, medical history, and any weight-related health conditions. The NHS recommends that adults aim for sustainable, gradual weight change at a rate of approximately 0.5–1kg per week, rather than rapid fluctuations. Whether you're looking to maintain, lose, or gain weight, a conversation with your GP ensures your goals are realistic and safe for your individual health profile.
- 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.
Is 10.5 stone a healthy weight?
It depends entirely on your height and age. Use our free BMI calculator above to check your personal BMI. If your BMI falls between 18.5–24.9, you're in the healthy weight range according to NHS guidelines (or 18.5–22.9 if you're of South Asian, Chinese, Black African, or Black Caribbean heritage). Your GP can provide personalised advice about what's healthy for you.
How do I convert 10.5 stone to kilograms?
10.5 stone equals approximately 66.6kg. To convert, multiply stone by 6.35029. You can also use our free weight converter on this page to instantly switch between stone, kilograms, and pounds for any weight measurement.
What does BMI mean and why does it matter?
BMI (Body Mass Index) is a screening tool that estimates whether your weight is healthy for your height. It's calculated as weight in kg divided by height in metres squared. The NHS uses BMI to identify health risk categories, though it has limitations—it doesn't account for muscle mass or where fat is stored. Your GP can explain what your BMI means for your health.
Should I aim to lose weight at 10.5 stone?
Only your GP can advise whether weight loss is appropriate for you. They'll consider your height, age, overall health, and any weight-related health conditions. If weight loss is recommended, the NHS suggests losing no more than 0.5–1kg per week for sustainable, healthy results. Use our progress tracker to log changes over time.
Where can I find NHS weight management support?
The NHS offers support through tier 1 (self-help and digital tools), tier 2 (primary care programmes), and tier 3 (specialist services). Start by speaking with your GP, who can refer you to appropriate services in your area. Many areas also offer free weight management programmes and online resources available to all adults.
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.