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 Correct Weight for a Male?
There's no single "correct" weight for men — it depends on your height, age, body composition, and overall health. However, the NHS provides a healthy weight range based on your height using BMI (Body Mass Index). A healthy BMI is between 18.5 and 24.9. You can calculate your personal healthy weight range using our free BMI calculator above, which will give you an instant answer based on your measurements. Most importantly, focus on what's healthy for you, not a specific number on the scales.
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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.
How to Calculate Your Healthy Weight Range
The NHS uses BMI (Body Mass Index) to define healthy weight ranges. BMI is calculated by dividing your weight in kilograms by your height in metres squared. For most adult men, a healthy BMI falls between 18.5 and 24.9.
To find your healthy weight range for your height, use these boundaries:
- Lower healthy weight = 18.5 × height (m)²
- Upper healthy weight = 24.9 × height (m)²
For example, a man who is 1.75m (5ft 9in) tall should aim for a healthy weight between approximately 56.6kg (8st 13lbs) and 76.2kg (11st 13lbs). However, BMI has limitations — it doesn't account for muscle mass, so athletes may have a higher BMI but still be healthy. Our free weight converter above can help you switch between kg, stone, and pounds instantly.
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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.
Average Weight and Individual Health Factors
The average UK adult male weighs approximately 85.7kg (13st 7lbs) and stands around 175.3cm (5ft 9in) tall. However, this average is not a target — healthy weight varies significantly between individuals based on muscle mass, bone density, genetics, and age.
What matters more than hitting a specific weight is maintaining a healthy lifestyle: regular physical activity, balanced nutrition, adequate sleep, and stress management. If you're concerned about your weight or health, your GP can provide personalised NHS health advice and assess whether any weight management support would be beneficial for you. Focus on how you feel and your energy levels, not just the number on the scales.
- 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 male in the UK?
The average UK adult male weighs approximately 85.7kg (13st 7lbs). However, average weight is not a health target — your healthy weight depends on your height, muscle mass, and individual health factors. Use our BMI calculator to find your personal healthy range.
Is there a "correct" weight I should aim for?
There's no single correct weight. Instead, aim for a healthy BMI between 18.5 and 24.9 according to NHS guidance. Your healthy weight range depends on your height. A GP can help you determine realistic health goals based on your individual circumstances.
How do I know if my weight is healthy?
Calculate your BMI using our free calculator — a result between 18.5 and 24.9 is generally healthy. Also consider your waist circumference (under 94cm for men is ideal) and how you feel physically. If you're unsure, ask your GP for personalised health advice.
Does muscle mass affect what I should weigh?
Yes. BMI doesn't distinguish between muscle and fat, so athletes or very muscular men may have a higher BMI but still be healthy. Body composition matters more than weight alone. Your GP can discuss this with you.
What should I do if I'm outside a healthy weight range?
If your BMI is outside 18.5–24.9, consider speaking with your GP about sustainable lifestyle changes including balanced nutrition and regular physical activity. Your GP can also discuss whether weight management support would be helpful and assess your overall 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.