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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Weight By Height Chart — Find Your Healthy Range
A weight by height chart shows the healthy weight range for adults of different heights, based on NHS BMI guidelines. In the UK, we typically use stone and pounds or kilograms to measure weight, and these charts help you understand whether your current weight falls within a healthy range for your height. This guide explains how to use a weight by height chart, provides reference values, and shows you how your personal measurements compare to NHS health thresholds.
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.
How Weight By Height Charts Work
Weight by height charts are based on BMI (Body Mass Index), a calculation that divides your weight by your height squared. The NHS uses BMI ranges to categorise adults into healthy weight, overweight, and obese categories. A healthy BMI is between 18.5 and 24.9 for most adults; however, for people of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower thresholds starting at 18.5 to 22.9.
The chart works by showing the weight range (in both kg and stone) that corresponds to a healthy BMI for each height. For example, at 5ft 8in (173cm), a healthy weight range is approximately 55kg to 74kg (8st 8lbs to 11st 8lbs). You can calculate your own BMI using our free BMI calculator above to see exactly where you sit within these ranges.
- Healthy BMI: 18.5–24.9
- Overweight: 25–29.9
- Obese: 30+
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.
Healthy Weight Ranges By Height
Here are example healthy weight ranges for common UK heights, using NHS BMI guidelines:
- 5ft (152cm): 45–61kg (7st 1lb to 9st 8lb)
- 5ft 4in (163cm): 50–67kg (7st 12lb to 10st 7lb)
- 5ft 8in (173cm): 55–74kg (8st 8lb to 11st 8lb)
- 5ft 10in (178cm): 57–77kg (9st 0lb to 12st 1lb)
- 6ft (183cm): 61–82kg (9st 8lb to 12st 12lb)
Use our free weight converter to switch between kg, stone, and pounds instantly. Remember that these are population averages—your ideal weight also depends on muscle mass, bone density, and overall health. Your GP can provide personalised guidance about your healthy weight range.
- 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's the difference between healthy weight and ideal weight?
Healthy weight is a range based on BMI that reduces health risks for most adults. Ideal weight is more personal—it depends on your individual body composition, muscle mass, activity level, and health conditions. A healthy BMI range is a good starting point, but your GP can advise on what weight is ideal for you specifically.
Does the chart apply to everyone?
Weight by height charts are designed for adults aged 18–65. They are less accurate for elderly people (who may have lost muscle mass), pregnant women, or very muscular individuals (like athletes) whose muscle contributes to higher BMI. For children, different age-specific growth charts are used. Always consult your GP for personalised advice.
Can I use this chart if I'm very muscular or athletic?
BMI doesn't distinguish between muscle and fat, so athletes with high muscle mass may have a high BMI but low body fat. In these cases, BMI is less useful. Your GP or a healthcare professional can assess your body composition more accurately using other measurements like waist circumference or body fat percentage.
What if my weight is above the healthy range on the chart?
If your weight is above the healthy range, it may increase your risk of health conditions like type 2 diabetes or cardiovascular disease. Even a 5–10% reduction in body weight can improve health significantly. Speak to your GP about weight management support, which may include dietary advice, physical activity guidance, or referral to specialist services.
How do I know if I should aim for the lower or upper end of the healthy weight range?
Individual factors like age, sex, muscle mass, and personal health history influence where within the healthy range is best for you. Most people benefit from aiming for the middle to lower-middle of the range. Your GP or a healthcare professional can assess your circumstances and help set a realistic, healthy weight goal tailored to you.
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.