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
What Is the Average UK Male Weight?
The average weight for UK adult men is approximately 85.7 kg (13 stone 7 lbs), according to the most recent Office for National Statistics data. However, average weight varies significantly by age, height, and individual factors. What matters more than matching the average is whether your weight falls within a healthy range for your height according to NHS guidance. Our free BMI calculator above can help you determine if your weight is healthy for you personally, regardless of how it compares to national averages.
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.
UK Male Weight Statistics and Health Context
According to the latest UK health surveys, the average height for UK men is approximately 175.3 cm (5ft 9in), with an average weight of 85.7 kg (13 stone 7 lbs). This gives an average BMI of around 27.9, which falls into the overweight category according to NHS guidelines. However, these are population averages—not targets or ideal weights. Weight varies naturally based on muscle mass, bone density, genetics, age, and lifestyle factors.
Regional variations exist across the UK, with average weights differing slightly between Scotland, England, Wales, and Northern Ireland. Additionally, average weight has increased over the past few decades, reflecting global trends in weight gain across developed nations. The NHS emphasises that individual health is more important than matching any population average. Using our free weight converter above, you can easily switch between kilograms, stone, and pounds to understand how different weight measurements relate to you personally.
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.
NHS Healthy Weight Guidance for UK Men
According to NHS guidance, a healthy BMI range is 18.5 to 24.9 for most adults. For a man of average UK height (175 cm / 5ft 9in), this equates to a healthy weight range of approximately 56.6 kg to 76.2 kg (8 stone 13 lbs to 12 stone). Since the average UK male weight of 85.7 kg falls above this range, a significant proportion of UK men are classified as overweight or obese according to NHS thresholds. Being overweight increases the risk of type 2 diabetes, heart disease, high blood pressure, and certain cancers. Even a modest weight loss of 5–10% can deliver meaningful health benefits. Calculate your personal healthy weight range using our BMI calculator, and speak with your GP about NHS weight management support if you're interested in achieving a healthier weight.
- 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.
Is 85.7 kg a healthy weight for a man in the UK?
It depends on your height. For an average UK man (5ft 9in / 175 cm), 85.7 kg gives a BMI of 27.9, which is overweight. A healthy weight for this height is 56.6–76.2 kg. Use our free BMI calculator above to check if your weight is healthy for your specific height.
What's the difference between average weight and healthy weight?
Average weight is what most people actually weigh; healthy weight is a range recommended by NHS based on height and health outcomes. Because average UK male weight is in the overweight category, the average is not the same as healthy. Your GP can advise on what's healthy for you.
Does average weight vary by age for UK men?
Yes, significantly. Younger men typically weigh less than older men due to age-related changes in metabolism and muscle mass. Average weight peaks in middle age (40–60 years) and varies by lifestyle, occupation, and health status throughout life.
How can I check if my weight is healthy?
Use the free BMI calculator on this page to calculate your BMI based on your height and weight. NHS guidelines classify healthy BMI as 18.5–24.9. You can also convert your weight using our weight converter to compare measurements in stone, pounds, or kilograms.
Should I aim to weigh the average UK male weight?
No. The average (85.7 kg) is actually overweight by NHS standards. Instead, aim for a healthy weight for your height—typically 56–76 kg for average UK male height. Your GP can help set a realistic, healthy target for you based on your individual 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.