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 47 Kg In Stone?
47 kilograms is equivalent to 7 stone and 5.8 pounds (or 7st 5.8lbs) using the standard UK weight conversion. This measurement falls within the healthy weight range for many UK adults, depending on height. If you're tracking your weight for health reasons, understanding your measurements in both metric and imperial units helps when consulting NHS guidance or using health tools. Our free weight converter makes switching between kg, stone, and pounds quick and simple.
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.
Converting 47 Kg to Stone — The UK Measurement
The conversion from kilograms to stone uses a straightforward formula: divide the kilogram weight by 6.35029. For 47 kg, this gives us 7 stone and 5.8 pounds. In other units, 47 kg is also equal to approximately 103.6 pounds. The UK continues to use stone and pounds for everyday body weight measurements, even though kilograms are the standard in clinical settings across the NHS. This dual system means understanding both conversions is useful when discussing weight with your GP, checking health charts, or using our BMI calculator to assess your personal health metrics. Converting between these measurements is simple once you know the exact conversion ratio.
- 47 kg = 7st 5.8lbs (stone and pounds)
- 47 kg = 103.6 lbs (pounds only)
- 47 kg = 47 kg (metric — used by NHS clinically)
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.
Is 47 Kg a Healthy Weight? UK Health Context
Whether 47 kg is a healthy weight depends entirely on your height and age. The NHS uses Body Mass Index (BMI) as a screening tool for healthy weight ranges. For example, someone who is 160 cm tall (5ft 3in) with a weight of 47 kg would have a BMI of approximately 18.4, which falls within the healthy weight range of 18.5–24.9. However, for someone taller, the same weight might indicate being underweight. Use our free BMI calculator above to determine your personal BMI and see where you fall within NHS guidelines. If you have concerns about your weight or health, your GP can provide personalised advice based on your individual circumstances and medical history.
- 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 47kg to stone quickly?
Divide 47 by 6.35029. This gives 7.41 stone, which is 7 stone and 5.8 pounds. Our free weight converter above does this instantly — just enter 47kg and select stone as your output unit.
Is 47kg considered underweight in the UK?
Not necessarily. 47kg is only underweight depending on your height. Use the NHS BMI calculator or our free BMI tool to check. A BMI under 18.5 is classed as underweight, but this varies with how tall you are.
What's 47kg in pounds?
47kg equals approximately 103.6 pounds (lbs). This is calculated by multiplying 47 by 2.20462. You can also use our weight converter to switch between any units instantly.
Why does the UK use stone and kilograms?
The UK traditionally uses stone and pounds for personal body weight, but the NHS and clinical settings use kilograms for consistency with international healthcare standards. Both systems are commonly seen in the UK.
Should I be concerned if I weigh 47kg?
Weight alone doesn't indicate health. Your GP considers your height, age, overall fitness, medical history, and other factors. If you're concerned about your weight, consult your GP for personalised health advice rather than relying on weight figures alone.
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.