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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Normal Weight For a Man 5'11
For a man who is 5ft 11in (180cm) tall, the healthy weight range according to NHS guidelines is approximately 70–89 kg (11 stone to 14 stone). This range is based on a healthy BMI of 18.5 to 24.9. However, your ideal body weight depends on several factors including muscle mass, frame size, and overall health. Use our free BMI calculator above to check where your current weight sits within the healthy range for your height, and the weight converter to switch between kg and stone measurements.
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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.
Healthy Weight Range for 5'11 Men
The healthy weight range for a man 5ft 11in tall is 70–89 kg (11st 0lb to 14st 0lb) according to NHS guidelines. This is calculated using a healthy BMI range of 18.5 to 24.9.
- Lower bound: 70 kg (11st 0lb) — BMI 18.5
- Upper bound: 89 kg (14st 0lb) — BMI 24.9
- Midpoint (moderate): approximately 79–80 kg (12st 6lb)
The UK average weight for adult men is around 85.7 kg (13st 7lb), and the average height is 175.3 cm. A man of 5ft 11in is slightly taller than average, so the healthy range reflects this additional height. Remember that BMI has limitations — it does not account for muscle mass, so athletes or very muscular men may fall slightly above the healthy range while still being in excellent health.
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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.
Factors That Affect Your Ideal Weight
Frame size significantly influences ideal weight — men with larger frames naturally carry more weight healthily than those with smaller frames. Muscle mass is another crucial factor; muscle weighs more than fat, so fit or athletic men may weigh more within the healthy range.
- Age: Metabolism changes with age, affecting weight distribution
- Ethnicity: Some groups have adjusted BMI thresholds; for example, South Asian men may benefit from aiming for the lower end of the range
- Medical history: Conditions like thyroid disorders or PCOS can affect healthy weight targets
Your GP can discuss your personal healthy weight target based on your individual health profile. Use our free healthy weight calculator to explore your specific range, and track progress with our progress tracker tool.
- 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 exact healthy weight range for a 5'11 man in stone and pounds?
The healthy weight range is approximately 11 stone (154 lbs) to 14 stone (196 lbs). In kilograms, that's 70–89 kg. This is based on a healthy BMI of 18.5–24.9 according to NHS guidelines. Individual targets vary depending on muscle mass and frame size.
Is the UK average weight healthy for a man 5'11?
The UK average weight for adult men is around 85.7 kg (13st 7lb). For a man 5ft 11in, this falls comfortably within the healthy weight range, giving a BMI of approximately 26.4 — just above the healthy range. Average weight and healthy weight are different; aim for the 70–89 kg range.
How do I calculate ideal weight for my height and frame?
The Devine formula is a common reference: for men, start with 50 kg, then add 2.3 kg for each inch over 5 feet. For 5ft 11in, that's 50 + (11 × 2.3) = approximately 75.3 kg. However, NHS BMI ranges are more reliable; use our free BMI calculator to check your personal range.
Should I aim for the lower or upper end of the healthy weight range?
Aim for the middle of the range (around 79–80 kg for your height) unless your GP advises otherwise. The lower end suits men with smaller frames or athletic goals; the upper end suits larger-framed men. Your GP can personalise this based on your health profile and fitness level.
Does muscle mass change what a healthy weight is?
Yes, significantly. BMI cannot distinguish muscle from fat. A very muscular or athletic man may weigh more and still have excellent health. If you're very fit, waist circumference is a better health marker than weight alone — men should aim for under 94 cm (37in) for health.
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.