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
Healthy Weight For Men — UK Reference Data
A healthy weight for men depends on height, age, and body composition. According to NHS guidelines, a healthy weight range sits within a BMI of 18.5 to 24.9 — though for men of South Asian, Chinese, Black African, or Black Caribbean heritage, the recommended range is 18.5 to 22.9 due to higher health risks at lower BMI levels. The average UK adult man weighs approximately 85.7 kg (13 stone 7 lbs) and stands around 175.3 cm (5 foot 9 inches) tall, though this doesn't automatically mean it's healthy for every individual. Your ideal body weight depends on multiple factors beyond just the numbers.
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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 By Height
To find your personal healthy weight range for height using the NHS standard, calculate a BMI of 18.5 to 24.9. Use our free BMI calculator above to check where you fall, or reference these common heights:
- 5ft 8in (173cm): 55–74 kg (8st 8lbs–11st 8lbs)
- 5ft 9in (175cm): 56–76 kg (8st 11lbs–11st 13lbs)
- 5ft 10in (178cm): 58–78 kg (9st 2lbs–12st 3lbs)
- 5ft 11in (180cm): 59–80 kg (9st 4lbs–12st 8lbs)
- 6ft 0in (183cm): 61–82 kg (9st 8lbs–12st 13lbs)
These ranges assume a standard adult male build. Convert your own weight using our free weight converter to see where you sit within the healthy range for your height.
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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 Affecting Ideal Weight
Muscle mass: Men with higher muscle density will weigh more at the same height while remaining healthy — BMI does not distinguish between muscle and fat. Frame size: A larger frame naturally supports more weight healthily than a smaller frame. Age: Muscle mass naturally decreases after age 30, and healthy weight ranges may shift with age-related changes. Ethnicity: Research shows men of South Asian, Chinese, Black African, and Black Caribbean backgrounds face higher cardiovascular risk at lower BMI levels, so NHS guidance recommends lower thresholds for these groups. Medical history: Existing health conditions may affect what constitutes a healthy weight for you personally.
- 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 average weight for UK men?
The average UK adult man weighs approximately 85.7 kg (13 stone 7 lbs) and stands around 175 cm (5 foot 9 inches) tall. However, average weight does not equal healthy weight — it's useful context but your personal healthy weight depends on your individual height, muscle mass, and health status.
How do I calculate my healthy weight range?
Use our free BMI calculator above to find your personal healthy weight range instantly. Alternatively, calculate a BMI of 18.5 to 24.9 for your height. Your GP can also discuss your individual healthy weight target, which may differ from standard ranges depending on your health history and goals.
What if I'm muscular — does BMI still apply?
BMI has limitations for muscular individuals. If you have significant muscle mass, a higher BMI may be healthy for you. Body composition measurements, waist circumference (under 94cm for men is lower risk), and your GP's assessment are better indicators than BMI alone in this case.
Does healthy weight change with age?
Healthy weight ranges remain consistent with BMI guidelines across adulthood, but muscle mass naturally decreases after age 30. This means you may need to work harder to maintain the same weight as you age. Your GP can advise on age-appropriate healthy weight targets.
Are healthy weight ranges different for different ethnicities?
Yes. The NHS recommends lower BMI thresholds for men of South Asian, Chinese, Black African, and Black Caribbean heritage — ideally 18.5 to 22.9 — because research shows these groups face higher cardiovascular risk at the standard BMI thresholds. Discuss your individual healthy weight with your GP if this applies 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.