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 a Normal Man's Weight in the UK?
The average UK man weighs approximately 85.7 kg (13 stone 7 pounds), according to recent Office for National Statistics data. However, "normal" weight varies significantly based on height, age, and individual health factors. Rather than aiming for an exact figure, the NHS recommends focusing on a healthy BMI range of 18.5 to 24.9, which varies by height. Use our free BMI calculator to discover your personal healthy weight range based on your measurements. What matters most is finding a weight that supports your individual health and wellbeing.
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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.
UK Average Weight and Healthy Weight Ranges
According to recent NHS and UK health surveys, the average adult man in the UK weighs around 85.7 kg (13 stone 7 lbs), with an average height of 175.3 cm (5 foot 9 inches). However, this figure does not represent an ideal or target weight — it is simply what is currently typical in the UK population.
Healthy weight varies considerably by height. A man who is 5 foot 8 inches (173 cm) tall may have a healthy weight range of approximately 55 to 75 kg (8 stone 8 lbs to 11 stone 10 lbs). A man who is 6 foot tall (183 cm) may have a healthy range of approximately 64 to 87 kg (10 stone 1 lb to 13 stone 10 lbs). Rather than fixating on a single "normal" figure, NHS guidance emphasises that healthy weight is a range determined by your height and individual health profile. Our weight converter and BMI calculator can help you identify your specific healthy weight range in stone and kilograms.
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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.
NHS Guidance on Healthy Weight for Men
The NHS defines a healthy BMI as 18.5 to 24.9 for most adult men. This applies regardless of the average weight you may read about elsewhere. Your BMI is calculated from your height and weight, which is why two men of different heights can both be healthy at very different weights.
For men of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds (18.5 to 22.9), as these groups face higher health risks at standard BMI levels. Beyond weight alone, the NHS also recommends monitoring your waist circumference: men should aim to keep their waist under 94 cm (37 inches) for good health, or ideally under 102 cm (40 inches). If you are concerned about your weight or health, speak to your GP for personalised guidance.
- 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 all men?
No. Average weight and healthy weight are different. 85.7 kg is the UK average, but it may be too high or too low depending on your height and health. A man of 5 foot 6 inches might be healthier at 70 kg, whilst a man of 6 foot 3 inches might be healthy at 95 kg. Use our BMI calculator to find your personal healthy range.
What's the healthy weight range for a man of 5 foot 8 inches?
For a man 5 foot 8 inches (173 cm) tall, a healthy BMI of 18.5 to 24.9 corresponds to a weight of approximately 55 to 75 kg (8 stone 8 lbs to 11 stone 10 lbs). Individual health factors may mean a slightly different range is healthier for you — speak to your GP for personalised advice.
How can I work out my healthy weight?
Calculate your BMI using your height and weight with our free BMI calculator on this page. For most UK adults, a BMI between 18.5 and 24.9 is considered healthy. If you need help understanding your results or have health concerns, your GP can provide personalised guidance.
What does waist circumference have to do with healthy weight?
Where you carry weight matters as much as total weight. Men with a waist circumference over 94 cm face increased health risks even at a normal BMI. The NHS recommends men measure their waist midway between their bottom rib and hip bone to assess health risk independently of weight.
Should I aim for the "average" weight of 85.7 kg?
No. The average weight reflects the current UK population, which includes overweight and obese individuals. Your target should be a weight that gives you a healthy BMI for your height and supports your individual health — not matching a population average. Your GP can help you set realistic, personalised targets.
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.