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
Average Weight for Men in the UK
The average weight for UK adult men is approximately 85.7 kg (13 stone 7 pounds), with an average height of around 175.3 cm (5 feet 9 inches). However, your ideal body weight depends on your individual height, age, muscle mass, and ethnicity — not just the population average. Using our free BMI calculator, you can find your personal healthy weight range based on NHS guidelines, which recommend a BMI between 18.5 and 24.9 for most adults.
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.
Average UK Male Weight by Height
The average UK adult man weighs 85.7 kg (13st 7lbs) according to recent Office for National Statistics (ONS) data, with an average height of 175.3 cm (5ft 9in). This gives an average BMI of approximately 27.9, which falls in the overweight category according to NHS guidelines.
However, population averages don't indicate what is healthy for you personally. Your healthy weight range depends entirely on your height:
- At 5ft 6in (168 cm): healthy weight range is approximately 55–74 kg (8st 9lbs – 11st 8lbs)
- At 5ft 8in (173 cm): healthy weight range is approximately 59–79 kg (9st 4lbs – 12st 6lbs)
- At 5ft 10in (178 cm): healthy weight range is approximately 63–85 kg (10st – 13st 6lbs)
- At 6ft 0in (183 cm): healthy weight range is approximately 68–91 kg (10st 10lbs – 14st 5lbs)
Use our weight converter to convert any weight between kg, stone, and pounds instantly, and our BMI calculator to find your exact healthy weight range based on your height.
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.
Factors Affecting Ideal Weight for Men
Your ideal body weight is not determined by averages alone. Several factors influence what weight is healthy for you:
- Muscle mass: Muscle weighs more than fat. A man with high muscle mass may have a higher weight but lower body fat percentage than someone at the same weight with less muscle.
- Frame size: Men with larger frames naturally weigh more than those with smaller frames at the same height — bone density and skeletal structure vary significantly.
- Age: Metabolism slows with age, and muscle mass naturally decreases. Older men may have a slightly different healthy weight range than younger men of the same height.
- Ethnicity: The NHS recommends lower BMI thresholds for men of South Asian, Chinese, Black African, and Black Caribbean heritage due to higher health risks at lower BMI levels.
For personalised advice, consult your GP or use our BMI calculator to understand your individual healthy weight range.
- 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 man in the UK?
According to Office for National Statistics data, the average UK adult man weighs approximately 85.7 kg (13 stone 7 pounds) with an average height of 175.3 cm (5 feet 9 inches). However, this is a population average — your personal healthy weight depends on your individual height, age, and muscle mass.
What is the healthy weight range for men according to NHS guidelines?
The NHS defines a healthy weight for adults as a BMI between 18.5 and 24.9. For example, at 5ft 10in (178 cm), the healthy weight range is approximately 63–85 kg (10st – 13st 6lbs). Use your height to calculate your personalised healthy weight range with our free BMI calculator.
Is the average UK male weight the same as the healthy weight?
No. The average weight of 85.7 kg gives an average BMI of 27.9, which falls in the overweight category according to NHS guidelines. Many UK men weigh more than the NHS healthy weight range, reflecting wider population trends rather than optimal health.
How do I calculate my ideal body weight?
Your ideal weight depends on your height, age, muscle mass, and frame size. The Devine Formula and Robinson Formula are common reference calculations, but the most practical approach is to use your BMI. A healthy BMI of 18.5–24.9 is a reliable guide for most men. Use our BMI calculator to find your personalised healthy weight range.
Does muscle mass affect what I should weigh?
Yes. Muscle is denser than fat, so two men at the same weight and height may have very different body compositions. BMI alone doesn't account for muscle mass. If you have significant muscle, your BMI may be higher but your actual body fat percentage could be healthy. Consider both BMI and waist circumference for a fuller picture.
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.