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
Typical Weight For Height in the UK
There's no single "typical" weight that applies to everyone at a given height — it depends on age, muscle mass, bone density, and individual body composition. However, the NHS provides healthy weight ranges based on BMI, which offer a useful reference point. For any given height, there's a range of weights that fall within the healthy BMI category of 18.5 to 24.9. Use our free BMI calculator above to check where your personal weight sits relative to these NHS guidelines, regardless of your height.
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.
NHS Healthy Weight Ranges by Height
The NHS defines healthy weight as a BMI between 18.5 and 24.9. This means that for any given height, there's a range of weights considered healthy rather than a single number. For example, at 5ft 7in (170cm), the healthy weight range is approximately 50–68kg (7st 12lbs to 10st 10lbs). At 5ft 10in (178cm), it's around 55–76kg (8st 9lbs to 11st 13lbs). These ranges reflect that muscle weighs more than fat, so a muscular person may have a higher weight within the healthy range than someone with less muscle at the same height.
For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends slightly lower thresholds due to higher health risks at lower BMI levels. Your GP can advise whether standard or adjusted thresholds are more appropriate for you based on your individual health profile and family history.
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.
Finding Your Healthy Weight — UK Tools and Resources
The best way to determine a healthy weight for your height is to use our free BMI calculator above, which gives you an instant assessment aligned with NHS guidelines. You can also use our weight converter to switch between kg, stone, and pounds — useful if you find weight information in different units. Remember that BMI is a screening tool only and doesn't account for muscle mass or bone density. Your GP can provide personalised UK health advice about what's a healthy weight for you specifically, especially if you have existing health conditions, are very muscular, or have concerns about your weight management journey.
- 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 typical weight for someone who is 5ft 9in?
At 5ft 9in (175cm), the healthy weight range is approximately 54–73kg (8st 6lbs to 11st 7lbs) according to NHS BMI guidelines. However, "typical" varies — UK adults average around 85kg for men and 72kg for women. Use our BMI calculator to check where your personal weight sits within the healthy range for your height.
Is there a standard healthy weight for height chart in the UK?
The NHS doesn't publish a single "standard chart" because healthy weight varies by individual factors like muscle mass and bone density. Instead, NHS guidance recommends using BMI, which provides a healthy range for each height rather than a single number. Our free BMI calculator generates your personal healthy weight range instantly.
Can I use a weight converter to find my typical weight range?
Our weight converter helps you switch between kg, stone, and pounds, but it doesn't determine healthy weight ranges. For that, you'll need to use our BMI calculator, which takes both your height and weight into account and aligns with NHS health guidance for UK adults.
Should I aim for a specific weight or a weight range?
The NHS recommends aiming for a healthy weight range rather than a single number. This is because people of the same height have different muscle mass, bone density, and frame sizes. A range typically spans 8–15kg depending on height. Your GP can help you set a realistic, personalised weight management goal based on your health.
Does typical weight for height differ by age or gender?
BMI-based healthy weight ranges are the same regardless of age or gender — they depend only on height and weight. However, people of different ages and genders may have different average weights due to natural body composition changes. Older adults may lose muscle, and men typically have more muscle than women. Your GP can advise on age-specific health context.
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.