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
56.8kg in Stone — Healthy Weight Guide
56.8kg is equivalent to 8 stone and 13.1 pounds in UK measurements. Whether this weight is healthy depends entirely on your height — a healthy weight for one person could be overweight for another. Using NHS guidelines, we can help you understand if 56.8kg falls within a healthy range for your specific height. Our free BMI calculator and weight converter above make it easy to check your personal position instantly.
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.
Healthy Weight Ranges at Different Heights
The NHS defines a healthy weight range using BMI categories. A healthy BMI sits between 18.5 and 24.9. At 56.8kg, your healthy weight classification depends on your height. Here's how this weight compares at three common heights:
- At 160cm (5ft 3in): 56.8kg gives a BMI of 22.2 — falling within the healthy weight range
- At 165cm (5ft 5in): 56.8kg gives a BMI of 20.9 — comfortably in the healthy range
- At 155cm (5ft 1in): 56.8kg gives a BMI of 23.6 — healthy weight range
Use our BMI calculator above to enter your exact height and see precisely where you fall. If you need to convert between kilograms to stone regularly, our weight converter on this page helps you switch between metric and imperial measurements instantly.
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.
NHS Healthy Weight Guidance and Next Steps
Beyond BMI: The NHS also recommends checking your waist circumference. For women, a waist over 80cm (31.5 inches) indicates increased health risk; over 88cm (34.5 inches) is high risk. For men, over 94cm (37 inches) is increased risk; over 102cm (40 inches) is high risk. If you're unsure whether 56.8kg is healthy for you personally, your GP can provide tailored advice based on your individual health profile, family history, and any existing health conditions. If you're tracking weight changes, our free progress tracker helps you log your journey and spot trends over time.
- 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 56.8kg in stone and pounds?
56.8kg equals 8 stone and 13.1 pounds (often written as 8st 13lbs). To convert kilograms to stone, divide the kilogram value by 6.35029. Our free weight converter on this page does this calculation instantly for any weight.
Is 56.8kg considered a healthy weight?
It depends on your height. At heights between 155–170cm, 56.8kg typically falls within the healthy BMI range of 18.5–24.9. Shorter or taller individuals may see different results. Use our BMI calculator above with your actual height for a personalised answer.
What is the healthy weight range for my height?
The healthy weight range varies by height. For example, at 165cm, healthy weight is roughly 50–67kg. At 160cm, it's approximately 47–63kg. Use the BMI calculator on this page to enter your exact height and see your specific healthy range instantly.
What should I do if my weight is outside the healthy range?
If your weight is above the healthy range, speaking with your GP is a good first step. They can assess your individual health, discuss sustainable lifestyle changes, and advise on whether any medical support would be appropriate. Focus on gradual, sustainable changes rather than gradual weight management.
How accurate is BMI for determining if a weight is healthy?
BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat, so very muscular individuals may have a high BMI despite low body fat. Waist circumference and overall fitness are also important. Your GP can give you more detailed health guidance beyond BMI 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.