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 52kg in Stone and Pounds?
52kg converts to 8 stone and 2.4 pounds (or 8st 2lbs) in UK measurements. However, whether this weight is healthy depends entirely on your height. The same weight gives a very different BMI for someone who is 5ft 2in compared to someone who is 6ft tall. Use our free BMI calculator above to find your personal BMI, then check where you fall within NHS health categories.
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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.
BMI at Different Heights for 52kg
At 52kg, your BMI varies significantly depending on your height. Here are six example heights to show how the same weight produces different health outcomes:
- 4ft 11in (150cm): BMI 21.5 — healthy weight (NHS category)
- 5ft 2in (157cm): BMI 20.8 — healthy weight
- 5ft 4in (163cm): BMI 19.3 — healthy weight
- 5ft 6in (168cm): BMI 18.1 — healthy weight
- 5ft 8in (173cm): BMI 17.4 — underweight (below 18.5)
- 5ft 10in (178cm): BMI 16.4 — underweight
Use our weight converter to check 52kg against your exact height, or try the BMI calculator on this page for your personal assessment. If your BMI falls below 18.5, discuss this with your GP.
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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.
Understanding NHS BMI Categories
The NHS defines five BMI categories for adults: underweight (below 18.5), healthy weight (18.5–24.9), overweight (25.0–29.9), obese class I (30.0–34.9), and obese class II (35.0+). At 52kg, most adults will fall into the healthy weight or underweight range depending on height. BMI is a useful screening tool but has important limitations—it doesn't distinguish between muscle and fat, and doesn't account for where fat is stored. Waist circumference and overall fitness also matter. For the most accurate health assessment, discuss your weight and BMI with your GP, who can consider your individual circumstances.
- 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.
What is 52kg in stone and pounds exactly?
52kg equals 8 stone and 2.4 pounds (8st 2lbs) in UK measurements. To convert kilograms to stone, divide by 6.35029. Our weight converter above instantly shows the conversion and lets you switch between kg, stone, and pounds.
Is 52kg a healthy weight?
Whether 52kg is healthy depends on your height. It's a healthy weight for taller adults (5ft 6in+) but may be underweight for very tall people. Use our free BMI calculator to check your personal BMI against NHS guidelines. If you're concerned, speak to your GP.
What BMI does 52kg give?
At 52kg, BMI ranges from about 16.4 (for someone 5ft 10in) to 21.5 (for someone 4ft 11in). The BMI calculator on this page shows your exact BMI in seconds—just enter your height and weight.
How does 52kg compare to average UK weight?
The average UK adult woman weighs approximately 71.6kg, and the average man weighs 85.7kg. At 52kg, you're below average, which may indicate you're either tall, athletic, or potentially underweight—context matters. Your GP can advise.
Should I be concerned if my BMI is 18 at 52kg?
A BMI of 18 is within the healthy weight range (18.5–24.9). However, if your BMI is below 18.5, it falls into the underweight category. Discuss any concerns about underweight status with your GP, especially if you have energy, strength, or health concerns.
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.