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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Average Weight for UK Males and Healthy BMI Context
The average weight for a UK adult male is approximately 85.7 kg (13 stone 7 pounds), though this varies significantly by height and individual factors. However, average weight is not the same as ideal body weight. A healthier approach is to understand your personal healthy weight range based on your height and BMI. According to NHS guidelines, a healthy weight corresponds to a BMI between 18.5 and 24.9. This guide explains what healthy weight means for UK males and how to find your own ideal weight range using the BMI framework.
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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 UK Males by Height and BMI
A healthy BMI of 18.5 to 24.9 translates into specific weight ranges depending on your height. For example, an average UK male height of around 175 cm (5ft 9in) falls within a healthy weight range of approximately 57 kg to 76 kg (8st 12lbs to 11st 13lbs). For taller males at 180 cm (5ft 11in), the healthy weight range widens to approximately 60 kg to 80 kg (9st 6lbs to 12st 8lbs).
NHS healthy weight guidance emphasises that reaching the middle of your healthy weight range isn't necessary—any weight within the 18.5–24.9 BMI bracket supports good health. Males carrying excess weight above a BMI of 30 face increased risks of type 2 diabetes, heart disease, and other weight-related conditions, which is why understanding your personal healthy weight range matters more than matching an average.
- BMI 18.5–24.9 = healthy weight
- BMI 25.0–29.9 = overweight
- BMI 30+ = obese (increased health risk)
Clinically BackedWeight Loss
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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.
Use Your BMI Calculator to Find Your Personal Healthy Weight
Rather than comparing yourself to an average, calculate your own healthy weight range using our free BMI calculator above. Enter your height and current weight to see where you fall on the NHS BMI scale. If your BMI is above 24.9, you can also use our weight loss projection calculator to estimate how much weight you'd need to lose to reach a healthy BMI range.
For most UK males, losing weight at a sustainable rate of 0.5 to 1 kg per week—achieved through a modest calorie deficit and increased physical activity—is the recommended approach. Use our free progress tracker to log your weight loss journey and monitor improvements over time, which often motivates long-term success.
- 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 UK adult male?
The average UK adult male weighs approximately 85.7 kg (13 stone 7 pounds) and stands around 175 cm (5ft 9in) tall. However, this average varies widely by age, frame size, and muscle mass. Individual healthy weight depends on height and BMI, not the population average.
What is a healthy weight range for a 5ft 9in male?
For a male 175 cm tall (5ft 9in), a healthy weight range is approximately 57–76 kg (8st 12lbs to 11st 13lbs), corresponding to a BMI of 18.5–24.9 according to NHS guidelines. This range supports optimal health and reduces risk of weight-related diseases.
How do I calculate my ideal body weight?
Use our free BMI calculator above to enter your height and weight. A BMI between 18.5 and 24.9 indicates a healthy weight range. You can also use our weight converter to view your weight in stone and lbs, making it easier to track your progress.
Is average UK weight the same as healthy weight?
No. The average UK male weight (85.7 kg) sits in the overweight to obese category (BMI ~27.9). Healthy weight is defined by BMI 18.5–24.9, not by population averages. Your personal healthy weight depends on your individual height and health profile.
What health risks come with weighing above the average?
Males carrying excess weight above a BMI of 30 face increased risks of type 2 diabetes, cardiovascular disease, high blood pressure, sleep apnoea, and certain cancers. Even modest weight loss of 5–10% can reduce these risks significantly. Consult your GP for personalised advice.
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.