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
9.7 Stone in Lbs — Is This a Healthy Weight?
9.7 stone is equivalent to 135.8 lbs. Whether this weight is healthy for you depends entirely on your height, age, and overall health profile. The NHS uses BMI (Body Mass Index) as the primary screening tool to determine if a weight falls within a healthy range. Our free BMI calculator above can help you find out instantly whether your weight is healthy for your specific height. This guide shows you how to interpret your weight in the context of NHS guidelines and what action to take if you're concerned about your health.
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.
Healthy Weight Ranges at Different Heights
At 9.7 stone (135.8 lbs), whether you're in a healthy weight range depends on your height. Here are three real examples:
- At 5ft 2in (157cm): 9.7 stone gives a BMI of 35.2 — this falls into the obese category according to NHS guidelines
- At 5ft 6in (168cm): 9.7 stone gives a BMI of 29.1 — this is in the overweight range, close to the 30 threshold
- At 5ft 10in (178cm): 9.7 stone gives a BMI of 24.5 — this is within the healthy weight range (18.5–24.9)
The NHS healthy BMI range is 18.5 to 24.9. Use the weight converter and BMI calculator on this page to find your exact BMI and healthy weight range for your height. Remember that BMI is a screening tool — it doesn't account for muscle mass or where fat is stored, so your GP can provide personalised guidance.
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 Guidance and Next Steps
The NHS recommends checking your waist measurement alongside your weight, as where fat is stored matters for heart health. Men should aim for under 94cm (37 inches), and women under 80cm (31.5 inches). If you're outside a healthy weight range, small changes can make a real difference — even losing 5% of your body weight can improve blood pressure and blood sugar levels.
If you're concerned about your weight or health, speak to your GP. They can assess your individual situation, discuss your lifestyle, and recommend tailored support. This might include signposting to NHS weight management services, diet advice, or increased physical activity. You can also use our free progress tracker to log changes over time and stay motivated.
- 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 9.7 stone to kilograms?
9.7 stone equals approximately 61.6 kg. To convert any weight in stone to kilograms, multiply by 6.35. Our free weight converter on this page lets you instantly convert between stone, lbs, and kg for any weight.
What's the difference between stone and pounds?
One stone equals exactly 14 pounds. So 9.7 stone is 9 stone and 9.8 lbs (or 135.8 lbs total). The UK commonly uses stone and pounds for body weight, while kilograms are used in medical settings. Our weight converter helps you switch between all three units.
Is 9.7 stone overweight or obese?
It depends on your height. At 5ft 2in it would be obese (BMI 35.2), at 5ft 6in it's overweight (BMI 29.1), and at 5ft 10in it's healthy (BMI 24.5). Use our BMI calculator above to find your exact category — it only takes seconds.
What should I do if I'm outside a healthy weight range?
Speak to your GP first — they can assess your health and discuss options. The NHS offers free tier 1 weight management support through digital tools and community programmes. If you need more support, your GP can refer you to specialist services. Small, sustainable changes often work better than gradual weight management.
How does waist measurement affect my health at this weight?
Waist measurement is important because fat stored around the abdomen increases cardiovascular risk more than fat elsewhere. The NHS recommends men keep their waist under 94cm and women under 80cm. Waist measurement is independent of your weight, so it's worth checking alongside your BMI.
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.