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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What's a Healthy Weight at 5ft 11in? UK Health Guide
At 5ft 11in (180cm), most UK adults fall into the average height range for men. Understanding your healthy weight at this height is essential for assessing your overall health and making informed decisions about weight management. The NHS provides clear BMI guidance for this height, and knowing your healthy weight range helps you set realistic health goals. Use our free BMI calculator to check where you stand right now.
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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.
Healthy Weight Range at 5ft 11in — NHS Guidance
For an adult at 5ft 11in (180cm), the NHS healthy weight range is 59 to 79kg (130 to 174lbs, or 9st 3lbs to 12st 6lbs).
This range is based on a healthy BMI of 18.5 to 24.9, which is the standard UK threshold for assessing whether weight poses health risks. The exact healthy weight depends on your individual build, muscle mass, and bone density — some people naturally carry more weight than others at the same height.
- Lower end (59kg / 9st 3lbs): BMI of 18.5 — lowest healthy threshold
- Upper end (79kg / 12st 6lbs): BMI of 24.9 — upper healthy threshold
- Overweight threshold: BMI 25+ (approximately 80kg / 12st 8lbs)
- Obese threshold: BMI 30+ (approximately 96kg / 15st 2lbs)
If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower thresholds — a healthy BMI range of 18.5 to 22.9, which may put your healthy weight closer to 59 to 73kg (9st 3lbs to 11st 6lbs).
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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 UK Health Tools to Track Your Weight at This Height
The best way to understand your personal health context at 5ft 11in is to use the free BMI calculator on this page — enter your current weight and get an instant NHS-aligned assessment. You can also use our weight converter to easily switch between kg, stone, and pounds, making it simple to track your weight in whichever unit feels most natural.
If you're working towards a healthier weight, our GLP-1 weight loss calculator can help you explore realistic weight loss scenarios with lifestyle changes or medical support. For ongoing tracking, use our free progress tracker to log your weight weekly and see your trends over time. Remember, sustainable weight loss is typically 0.5 to 1kg per week — speak to your GP if you have questions about whether your weight is right for your 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 is the average weight for a 5ft 11in man in the UK?
According to UK Office for National Statistics data, the average UK adult man weighs approximately 85.7kg (13st 7lbs) and stands around 175cm tall. At 5ft 11in (180cm), you're slightly taller than average, so your healthy weight range sits higher — 59 to 79kg. Individual variation is significant based on muscle mass and build.
Is 80kg overweight at 5ft 11in?
At 5ft 11in, 80kg gives a BMI of approximately 25.1, which is technically in the overweight category (BMI 25–29.9) according to NHS guidelines. However, BMI does not account for muscle mass. If you're athletic with good muscle tone, 80kg may be healthy for you. Consult your GP for personalised advice.
How do I convert 5ft 11in to centimetres?
5ft 11in equals 180 centimetres exactly. This is the standard conversion used in UK health assessments. Use our free weight converter above to switch between different height and weight units — it's helpful when comparing your measurements to NHS guidance or tracking health trends.
What BMI should I aim for at 5ft 11in?
The NHS recommends aiming for a BMI between 18.5 and 24.9, which at 5ft 11in corresponds to a weight of 59 to 79kg (9st 3lbs to 12st 6lbs). Use our BMI calculator to find your personal BMI instantly. If you're overweight, even a 5 to 10% weight reduction can improve your health significantly.
What is the healthiest weight at my height for a woman?
A woman at 5ft 11in is taller than average (average UK woman height is 5ft 3.5in). Her healthy weight range remains the same as any adult at this height: 59 to 79kg (9st 3lbs to 12st 6lbs) for a BMI of 18.5 to 24.9. Individual factors like muscle mass affect the ideal weight — your GP can offer personalised guidance based on your health history.
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.