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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Height According To Weight Chart — Finding Your Healthy Range
Your height is one of the most important factors in determining whether your weight falls within a healthy range. UK health charts use height and weight together to calculate BMI (body mass index), which helps assess whether you're at a healthy weight for your body size. The NHS provides standard weight charts based on height, and these vary slightly depending on your ethnic background. Finding where you sit on a height-to-weight chart gives you a practical starting point for understanding your health, though it's important to remember that weight charts are screening tools, not personalised health assessments.
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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.
How Height And Weight Charts Work
Height and weight charts use a simple principle: as your height increases, your healthy weight range increases too. The NHS uses BMI (body mass index) as the primary screening tool, which divides your weight in kilograms by your height in metres squared. For most UK adults, a healthy BMI falls between 18.5 and 24.9. You can use our free BMI calculator above to find your exact BMI instantly based on your height and weight.
The healthy weight range for any given height can be calculated using standard formulas. For example, an adult who is 5ft 8in (173 cm) tall would have a healthy weight range of approximately 55–74 kg (8st 10lbs to 11st 10lbs). However, this range assumes average build and muscle mass — individual variation is normal. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends slightly lower weight thresholds because these groups face higher health risks at the same BMI levels. Your GP can provide personalised guidance on what a healthy weight means for you specifically, taking into account your individual health picture.
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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 Weight Charts Alongside Other Health Measures
While height-to-weight charts are useful, they have important limitations. BMI does not distinguish between muscle and fat — athletes and very muscular individuals may have a high BMI but low body fat. Weight charts also don't account for where fat is stored on your body. The NHS recommends measuring waist circumference alongside weight and height for a more complete picture. Men should aim for a waist under 94 cm (37 inches), and women under 80 cm (31.5 inches). Use our free weight converter to switch between UK measurements (stone and pounds) and metric (kg) so you can easily compare your weight to charts. Combined with healthy lifestyle changes — balanced diet and regular physical activity — understanding your height-appropriate weight range is a practical first step towards sustainable health.
- 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 weight should I be for my height UK?
Your healthy weight depends on your exact height and individual factors. Use the NHS BMI range (18.5–24.9) as a guideline — for most adults, this translates to roughly 0.7–1 kg of healthy body weight per cm of height. Our BMI calculator above shows your exact healthy weight range based on your height instantly. Your GP can give personalised advice.
How do I find my height on a weight chart?
Find your height in centimetres or feet/inches on the vertical axis of a weight chart, then trace across to see the corresponding healthy weight range on the horizontal axis. UK charts typically show weight in both kg and stone for easy reference. Most modern health resources offer interactive calculators instead — you can use our free BMI calculator on this page to get instant, accurate results.
Is BMI the only way to check if my weight is healthy?
BMI is the NHS screening standard but not the complete picture. Waist circumference, body composition, fitness level, and medical history all matter. A high BMI combined with a large waist circumference indicates higher health risk. Talk to your GP about your individual health rather than relying on charts alone — they can assess your personal risk factors.
Do weight charts differ for men and women?
Healthy BMI ranges (18.5–24.9) are the same for men and women. However, body composition differs — women typically have higher body fat percentages at the same BMI. Weight charts don't account for these differences, which is why personalised medical advice from your GP is valuable alongside general height-weight guidance.
What if my height-weight doesn't match the chart?
Natural variation exists — not everyone fits exactly on a chart. Factors like muscle mass, bone density, genetics, and medical conditions affect healthy weight. If your weight doesn't match the chart but you're active, healthy, and feeling well, this may be normal for you. Your GP can assess whether your weight poses any health risks in your specific situation.
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.