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
8 Stone 6 In Pounds — Instant Conversion
8 stone 6 pounds equals exactly 120 lbs. This conversion uses the standard UK measurement where 1 stone = 14 pounds. Whether you're tracking your weight for health reasons, comparing measurements across different UK resources, or understanding NHS health guidance, knowing your weight in both stone and pounds helps you engage with health information more confidently. Our free weight converter above makes switching between metric and imperial measurements instant.
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.
How to Convert Stone to Pounds
Converting stone to pounds is straightforward using the standard UK conversion formula. 1 stone always equals exactly 14 pounds, so to convert any stone measurement, multiply the stone value by 14, then add any additional pounds.
- 8 stone 6 pounds calculation: (8 × 14) + 6 = 112 + 6 = 120 lbs
- This same principle works for any stone and pound combination
- For example, 10 stone 3 pounds = (10 × 14) + 3 = 143 lbs
- Reverse calculation: to convert pounds back to stone, divide by 14
- 120 lbs ÷ 14 = 8.57 stone, or 8 stone 8 pounds
The stone-to-pound conversion is one of the most common weight measurements you'll encounter in UK health contexts, NHS guidance, and everyday conversations about weight.
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.
BMI and Health Context for 8 Stone 6
Whether 8 stone 6 (120 lbs) is a healthy weight depends entirely on your height. Using our free BMI calculator above, you can check your personal BMI instantly and see where you fall on the NHS health weight ranges. For example, at 5ft 6in (168cm), 8 stone 6 gives a BMI of approximately 19.4 — within the healthy weight range. At 5ft 0in (152cm), the same weight gives a BMI of around 23.5 — also healthy. However, at 5ft 10in (178cm), it would give a BMI of approximately 17.2 — approaching the underweight category. Use our weight converter to check your personal health context, and discuss any weight concerns with your GP.
- 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 8 stone 6 pounds a healthy weight?
It depends on your height and age. Use the free BMI calculator on this page to check your personal BMI — this gives you a health-based assessment. The NHS also considers ethnicity, muscle mass, and any existing health conditions. If you're unsure, your GP can provide personalised guidance.
How do I convert stone and pounds to kilograms?
Convert to pounds first (multiply stone by 14 and add pounds), then convert pounds to kg (divide by 2.20462). Alternatively, use the weight converter above to switch between all units instantly — it's faster and more accurate.
What does the NHS say about healthy weight?
The NHS healthy weight range for most adults is a BMI of 18.5 to 24.9. For adults of South Asian, Black African, Black Caribbean, or Chinese heritage, the healthy range is 18.5 to 22.9. Your GP can advise on whether your specific weight is healthy for you.
Can I use stone and pounds for health tracking?
Yes — many UK health resources use stone and pounds. However, for medical records and precise tracking, your GP may prefer kilograms. Use our free progress tracker to log your weight in whichever unit you're most comfortable with.
How accurate is converting between stone and pounds?
The conversion is exact: 1 stone = exactly 14 pounds. There is no variation or rounding error, so 8 stone 6 will always equal 120 pounds precisely. This makes it reliable for health tracking and NHS comparisons.
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.