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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48 Kg in Stones and Pounds — UK Weight Guide
48 kilograms equals 7 stones and 7.5 pounds — but whether this weight is healthy for you depends entirely on your height, age, and individual health factors. The NHS uses BMI (body mass index) as a screening tool to assess if a weight falls within a healthy range. To convert kilograms to stone accurately, use our free weight converter above, then check your personal BMI using the BMI calculator on this page. This short guide explains what 48kg means in UK measurements and shows you how to determine if it's a healthy weight for you specifically.
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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 by Height — 48kg Context
At 48kg, whether your weight is healthy depends on your height. The table below shows healthy weight ranges (BMI 18.5–24.9) for different adult heights, so you can see where 48kg sits:
- 5ft 0in (152cm): Healthy weight 43–57kg. At 48kg, this is within the healthy range.
- 5ft 4in (163cm): Healthy weight 49–66kg. At 48kg, this is slightly below the healthy range but still acceptable.
- 5ft 8in (173cm): Healthy weight 55–74kg. At 48kg, this would be underweight (BMI under 18.5).
- 5ft 10in (178cm): Healthy weight 59–79kg. At 48kg, this would be underweight.
Use our free BMI calculator above to find your exact BMI and see which NHS category your weight falls into. Remember that healthy weight ranges are broad — muscle mass, bone density, and overall fitness also matter. If you're concerned about being underweight, speak to your GP.
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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 and What to Do Next
The NHS recommends a healthy BMI between 18.5 and 24.9 for adults. If you're at 48kg and your BMI is below 18.5, you may be underweight, which can affect energy, bone health, and immune function — discuss this with your GP. Waist measurement also matters: the NHS suggests keeping waist circumference below 94cm (men) or 80cm (women) for good health. Rather than focusing only on weight, consider the bigger picture: are you eating balanced meals, staying active, sleeping well, and feeling energised? Weight is just one health marker. Our weight converter and BMI calculator help you understand your numbers, but your GP can give personalised health advice based on your complete 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.
What is 48kg in stones and pounds?
48kg equals 7 stones and 7.5 pounds (7st 7.5lbs). To convert kilograms to stone, divide by 6.35029. You can also use our free weight converter above to switch instantly between metric and imperial measurements.
Is 48kg a healthy weight?
It depends on your height. At 5ft 0in, 48kg is healthy. At 5ft 8in or taller, it would be underweight. Use our BMI calculator above to check your personal BMI — this gives you a clear answer based on your height and weight.
What if I'm underweight at 48kg?
If your BMI is below 18.5, speak to your GP. Being underweight can affect bone density, energy, and immunity. Your GP can advise whether you need to gain weight or investigate any underlying causes.
How do I know if my weight is healthy besides BMI?
BMI is useful but has limits — it doesn't account for muscle. The NHS also recommends checking your waist circumference (below 94cm for men, 80cm for women) and assessing how you feel: energy levels, fitness, digestion, and sleep are all important indicators of health.
How do I convert other weights to stones and pounds?
Use our free weight converter on this page to convert between kilograms, stones, and pounds instantly. You can also convert kilos to stone manually by dividing kilograms by 6.35 — the decimal gives you the stone and pounds equivalent.
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.