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
Is 10 Stone Overweight? What the NHS Says
Whether 10 stone is overweight depends on your height, age, and ethnicity — there's no single answer. However, the NHS uses BMI (body mass index) to assess weight status, and 10 stone (63.5kg) would fall into the overweight or obese category for most UK adults. Use our free BMI calculator above to check your personal BMI instantly, which gives you a clearer picture of where you stand against NHS guidelines. This guide explains what the health evidence shows and what support is available if you're concerned about your weight.
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.
Health Risks Associated with Excess Weight
Carrying excess weight increases the risk of several serious health conditions, supported by NHS and Public Health England data. Being overweight (BMI 25–29.9) or obese (BMI 30+) is linked to:
- Type 2 diabetes: Overweight individuals are up to 80 times more likely to develop type 2 diabetes at severe obesity levels
- Heart disease and stroke: Excess weight increases blood pressure and cholesterol, raising cardiovascular risk
- Certain cancers: The NHS recognises 13 types of cancer linked to excess weight, including breast, bowel, and endometrial cancers
- Sleep apnoea: Weight around the neck can block airways during sleep, causing interrupted breathing
- Osteoarthritis: Extra weight puts pressure on joints, increasing pain and mobility problems
- Fatty liver disease: Non-alcoholic fatty liver disease (NAFLD) is increasingly common in overweight populations
Even a modest 5–clinically studied weight loss can significantly reduce these risks and improve health outcomes. However, weight is affected by many factors including genetics, medical conditions, medications, and environment — it's never simply about willpower.
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.
Support and Options Available in the UK
The NHS offers a structured weight management pathway starting with tier 1 self-help resources, progressing to tier 2 community programmes, and tier 3 specialist services where prescription medications may be offered. Your GP can refer you to local weight management services, which vary by region. For adults with a BMI of 30 or above (or 27+ with weight-related health conditions), eligibility for prescription weight loss treatment may apply — such as GLP-1 injections like Mounjaro or Wegovy, available through specialist NHS services or private assessment. Try our free weight loss calculator to explore potential outcomes with different interventions. Sustainable lifestyle changes — including balanced diet, physical activity, and behaviour support — form the foundation of any weight management approach.
- 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 know if 10 stone is overweight for me?
It depends on your height. Use the free BMI calculator on this page to find your personal BMI — then compare it against NHS categories (healthy weight is 18.5–24.9). For most UK adults under 6ft tall, 10 stone would likely fall into the overweight or obese range. For taller adults, it may be closer to healthy weight.
What am I overweight threshold according to the NHS?
The NHS defines overweight as a BMI of 25–29.9 and obesity as BMI 30 and above. For people of South Asian, Black African, or Black Caribbean heritage, the thresholds are lower (overweight from 23 BMI, obese from 27.5 BMI) because these groups face higher health risks at lower weights.
What health risks does being overweight actually cause?
Evidence links excess weight to type 2 diabetes, heart disease, stroke, 13 types of cancer, sleep apnoea, osteoarthritis, and fatty liver disease. However, the NHS emphasises that even a 5–clinically studied weight loss can reduce these risks significantly. Weight is influenced by genetics, medications, and medical conditions — not just lifestyle.
What is my healthy weight range at my height?
Your healthy weight range depends on your height. Use the BMI calculator on this page to find your personal range (it's the weight that gives you a BMI between 18.5 and 24.9). For most adults, this range is fairly broad — usually spanning 10–20kg depending on height and frame size.
How can I start managing my weight through the NHS?
Start by speaking to your GP, who can refer you to tier 2 or tier 3 weight management services in your area. These offer behaviour support, dietary advice, and access to specialist services. For eligible adults (BMI 30+, or 27+ with health conditions), prescription weight loss medications may be available through specialist tier 3 services. Regional availability varies significantly.
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.