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
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What Is 47 Kg In Stone And Pounds?
47 kg converts to 7 stone 5.8 pounds (or approximately 7 stone 6 lbs) using the standard kg to stone conversion. Whether this weight is healthy depends entirely on your height, age, and individual circumstances. Using our free BMI calculator above, you can check if 47 kg falls in the healthy weight range for your specific height. This guide explains how to interpret your weight in UK measurements and what the NHS considers a healthy weight range.
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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
Whether 47 kg (7 stone 6 lbs) is healthy depends on your height. The NHS uses BMI (body mass index) to classify weight ranges, which accounts for both weight and height together. Here are three concrete examples showing how the same weight can be healthy for one person and overweight for another:
- 5ft 8in (173cm): At 47 kg, BMI = 15.7 — this falls in the underweight range (below 18.5). A healthy weight at this height would be 55–74 kg (8st 8lbs to 11st 9lbs).
- 5ft 2in (158cm): At 47 kg, BMI = 18.8 — this falls in the healthy weight range (18.5–24.9). A healthy weight at this height would be 46–62 kg (7st 3lbs to 9st 10lbs).
- 4ft 10in (147cm): At 47 kg, BMI = 21.7 — this also falls in the healthy weight range. A healthy weight at this height would be 40–54 kg (6st 4lbs to 8st 7lbs).
These examples show why height matters: the same weight can be healthy, underweight, or overweight depending on your height. Use our free BMI calculator on this page to find your personal healthy weight range instantly.
Clinically BackedWeight Loss
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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: What You Should Know
The NHS considers a healthy BMI between 18.5 and 24.9 for most UK adults. If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower thresholds (18.5–22.9), as these groups face higher health risks at the same weight. Beyond BMI, the NHS also recommends measuring your waist circumference: men should aim for under 94 cm (37 inches), and women under 80 cm (31.5 inches). If 47 kg falls outside your healthy range, small lifestyle changes — like increasing physical activity or adjusting your diet — can make a significant difference. Your GP can provide personalised advice about what a healthy weight means for you specifically.
- 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 47 kg to stone and pounds manually?
Divide 47 by 6.35 to get stone (47 ÷ 6.35 = 7.4 stone). The decimal represents pounds: 0.4 × 14 = 5.6 lbs. So 47 kg = approximately 7 stone 6 lbs. Use our free weight converter above for instant, precise conversions.
Is 47 kg a healthy weight for an adult?
It depends on your height. At 5ft 2in, 47 kg is healthy (BMI 18.8). At 5ft 8in, it would be underweight (BMI 15.7). Use our BMI calculator to check your personal healthy weight range — it only takes seconds.
What's the healthy weight range if I'm 5ft 5in tall?
For someone 5ft 5in (165 cm), the healthy weight range is approximately 51–69 kg (8st to 10st 13lbs). Our BMI calculator will show you the exact range for your height instantly.
Should I be concerned if my weight is above or below the healthy range?
If your weight is consistently outside the healthy range, it's worth discussing with your GP. They can assess your individual health, take into account any medical conditions, and suggest appropriate steps — whether that's lifestyle changes, dietary support, or other interventions.
Does waist measurement matter as much as weight?
Yes — the NHS recommends measuring waist circumference alongside weight. Excess fat around the middle carries higher health risks even at a normal BMI. Men should aim for under 94 cm, women under 80 cm. Your GP can advise you on what's healthy for you.
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.