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
Suggested Weight Chart for Your Height — UK Guide
A suggested weight chart shows the healthy weight range for your height according to NHS health guidance. Your ideal weight depends on your height, age, sex, and body composition — not just a single number. This guide explains how to find your target weight range using evidence-based UK health standards, and how tools like our free BMI calculator can help you understand what a healthy weight means for you personally.
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.
Understanding Your Suggested Healthy Weight Range
The NHS defines a healthy weight range using Body Mass Index (BMI) — a calculation of weight relative to height. For most UK adults, a BMI between 18.5 and 24.9 is considered healthy weight. However, your suggested weight isn't a single target but a range, because healthy weight varies based on muscle mass, bone density, and individual factors.
- For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends a lower threshold: BMI 18.5 to 22.9 — because these populations face higher health risks at standard BMI levels
- Your suggested weight range can be calculated using height and the healthy BMI range: multiply your height in metres by itself, then multiply by 18.5 and 24.9
- Weight management involves both reaching a healthy weight and maintaining it — gradual weight management is not sustainable
Use our free BMI calculator above to instantly find your personal suggested weight range for your exact height.
Clinically BackedWeight Loss
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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.
Using a Weight Chart for Health Planning
A suggested weight chart is most useful when combined with other health markers. BMI alone doesn't account for muscle mass — athletes may have a higher BMI but excellent health. Waist measurement is equally important: the NHS recommends keeping waist circumference below 94cm (37 inches) for men and 80cm (31.5 inches) for women.
If you're working towards a target weight, track your progress over weeks and months rather than days. Our free weight converter helps you switch between kg, stone, and pounds to understand your measurements in familiar units. Your GP can provide personalised advice about what a healthy weight means for your individual circumstances, especially if you have existing health conditions.
- 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 the suggested weight for my height?
Your suggested healthy weight range depends on your height and BMI. For example, at 5ft 8in (173cm), a healthy weight is approximately 55–74kg (8st 10lbs to 11st 10lbs). Use our free BMI calculator to find your exact range instantly — it accounts for your individual height and provides both metric and imperial measurements.
Is suggested weight the same as ideal weight?
Not exactly. Suggested weight refers to the NHS healthy BMI range for your height. Ideal weight is more personal and can vary based on muscle mass, bone structure, and individual goals. A suggested weight chart gives you a science-based range; your GP can help determine what's ideal for you.
Why do suggested weights differ for different ethnic backgrounds?
The NHS recommends lower BMI thresholds for South Asian, Chinese, Black African, and Black Caribbean adults because research shows these groups have higher cardiovascular and diabetes risk at standard BMI levels. A BMI of 23 might be overweight for these populations but normal for others — this reflects health science, not appearance standards.
How do I use a weight chart to plan weight loss?
Find your current weight on the chart to see which BMI category you're in, then identify your target range. The NHS recommends losing no more than 0.5–1kg per week for sustainable results. Track progress with our free progress tracker, and remember that weight fluctuates daily — focus on trends over weeks, not daily changes.
Can a weight chart tell me if I'm overweight?
A weight chart shows where you fall in the BMI categories — underweight, healthy weight, overweight, or obese. However, BMI has limitations: it doesn't distinguish muscle from fat, and doesn't account for where fat is stored. Use our BMI calculator alongside waist measurement and discussion with your GP for a complete health picture.
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.