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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Ideal Weight for a 5'6" Male — UK Health Reference
For a man who is 5'6" (168 cm) tall, the healthy weight range according to NHS guidelines is approximately 53–71 kg (8 stone 4 lbs to 11 stone 2 lbs). The average UK male of this height weighs around 77 kg (12 stone 1 lb), which falls into the overweight category. Your ideal body weight depends on several factors including muscle mass, frame size, and individual health context — there isn't a single "perfect" number. Use our free BMI calculator above to check your personal healthy weight range based on your height and current weight.
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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 and BMI for 5'6" Males
According to NHS BMI guidelines, the healthy weight range for an adult male at 5'6" (168 cm) is 18.5 to 24.9 BMI. This translates to approximately 53–71 kg (8 stone 4 lbs to 11 stone 2 lbs).
- Lower healthy limit: 53 kg (8 stone 4 lbs) — BMI 18.5
- Upper healthy limit: 71 kg (11 stone 2 lbs) — BMI 24.9
- Overweight threshold: 72 kg (11 stone 3 lbs) — BMI 25.0
- Obese threshold: 86 kg (13 stone 8 lbs) — BMI 30.0
The NHS healthy weight range is evidence-based on cardiovascular health and disease risk. Many men at 5'6" naturally sit in the 65–75 kg range depending on muscle mass and frame size. Calculate your specific BMI instantly with the BMI calculator on this page — it accounts for your exact height and weight.
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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.
Factors Affecting Ideal Weight at 5'6"
Ideal weight isn't one-size-fits-all. Several factors affect what's right for you: Muscle mass weighs more than fat, so athletes and very muscular men may have a higher healthy weight. Frame size (small, medium, large bone structure) naturally adjusts your ideal range by 5–10%. Age affects metabolism and body composition — older men may have slightly different healthy weight targets. Ethnicity matters too: the NHS recommends lower BMI thresholds for South Asian, Chinese, and Black African heritage men. Overall health including fitness, blood pressure, and family history is more important than the number on the scales. Your GP can give personalised guidance on what weight is healthiest for your individual circumstances.
- 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's the average weight for a 5'6" male in the UK?
According to recent UK data, the average weight for an adult male of 5'6" is approximately 77 kg (12 stone 1 lb). However, this is above the NHS healthy weight range of 53–71 kg. Average is not the same as healthy — the NHS healthy range is based on disease risk and longevity, not what most people weigh.
Is 70 kg a healthy weight for a 5'6" male?
Yes. At 5'6" (168 cm), a weight of 70 kg gives a BMI of 24.8, which falls comfortably within the NHS healthy weight range of 18.5–24.9. This is an excellent target weight for long-term health. Use our weight converter to check this in stone and pounds.
What BMI should a 5'6" male aim for?
The NHS recommends a BMI between 18.5 and 24.9 for healthy adults. For a 5'6" male, this means a weight range of 53–71 kg (8 stone 4 lbs to 11 stone 2 lbs). A BMI in the lower-to-middle part of this range (19–23) is often associated with the best long-term health outcomes.
How much weight loss would take a 5'6" male from overweight to healthy?
If you're currently at 80 kg (12 stone 8 lbs, BMI 26), reaching 71 kg (11 stone 2 lbs, BMI 24.9) would bring you into the healthy range — a loss of 9 kg. The NHS recommends losing 0.5–1 kg per week for sustainable results, so this would take roughly 9–18 weeks alongside diet and exercise changes.
Should I use an ideal weight calculator or just aim for BMI range?
Both are useful. Your ideal weight range based on BMI (53–71 kg) is evidence-backed and applicable to most men. However, ideal weight calculators (like the Devine or Robinson formulas) can give more personalised targets based on frame size. The healthiest approach is to use our BMI calculator on this page alongside lifestyle improvements and regular GP check-ups.
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.