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 pounds in kilograms?
47 pounds is equal to approximately 21.32 kilograms. If you're converting between imperial and metric weight measurements, this straightforward conversion helps you understand weight in the units used by the NHS and most UK health professionals. Whether you're checking a child's weight, tracking fitness progress, or comparing international health guidelines, our free weight converter above makes switching between stone, pounds, and kilograms instant and accurate.
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.
Pounds to Kilograms Conversion Table
To convert pounds to kilograms, divide the pound value by 2.20462. For 47 pounds specifically: 47 ÷ 2.20462 = 21.32 kg. Here's a quick reference table showing 47 lbs in context with nearby weights:
- 42 lbs = 19.05 kg
- 44 lbs = 19.96 kg
- 46 lbs = 20.86 kg
- 47 lbs = 21.32 kg
- 48 lbs = 21.77 kg
- 50 lbs = 22.68 kg
- 52 lbs = 23.59 kg
This conversion formula works for any pound to kilogram calculation. Use our weight converter tool above to switch instantly between metric to imperial weight measurements for any value.
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 Healthy Weight Context at 47 Pounds
At 47 lbs (21.32 kg), BMI depends entirely on height. For example, a child or adult of 4 feet 6 inches (137 cm) would have a BMI of approximately 28.5, falling into the overweight category according to NHS guidelines. At 5 feet 2 inches (157 cm), a weight of 47 lbs results in a BMI of around 18.2, within the healthy weight range. The NHS healthy weight range for most adults is BMI 18.5 to 24.9. Use our free BMI calculator on this page to check what your personal BMI is and what it means for your health at your specific height.
- 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 pounds to kilograms manually?
Divide 47 by 2.20462. This gives you 21.32 kg. The reverse conversion uses the same number: to convert kg to pounds, multiply by 2.20462. Our weight converter tool handles this instantly for any value.
Is 47 pounds a healthy weight?
It depends on height. 47 lbs is very light for most adults — it would indicate underweight status for anyone over about 4 feet 10 inches. For young children, this weight is age and height dependent. Your GP or our BMI calculator can assess whether this weight is healthy for your specific height and age.
What's the difference between stone, pounds, and kilograms?
Stone and pounds are imperial units used in the UK; kilograms are metric. 1 stone = 14 pounds = 6.35 kg. Most health professionals in the UK use both systems — NHS typically records clinical measurements in kg but patients often understand weight better in stone and pounds.
How much is 47 pounds in stone and pounds?
47 pounds equals 3 stone and 5 pounds (3st 5lbs). Use the stone to kg conversion and our weight converter tool above to switch between all three systems instantly.
Should I track my weight in pounds or kilograms?
Either works, but consistency matters for tracking progress. If you're working with the NHS or a UK health professional, kilograms is standard for clinical records. Many UK weight loss programmes and our free progress tracker support both units — choose whichever feels more natural to 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.