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
Is 80 kg a Healthy Weight for a Man in the UK?
At 80 kg, a man's health status depends entirely on his height and overall fitness. According to NHS guidance, this weight alone doesn't determine whether someone is overweight or obese — height is the critical factor. Using our free BMI calculator, you can find out exactly where 80 kg places you on the NHS health scale. For example, a man who is 1.75 m (5ft 9in) tall would have a BMI of around 26, which falls in the overweight category. However, a taller man at 1.90 m (6ft 3in) would have a BMI of approximately 22, which is in the healthy weight range. Understanding your personal BMI is the first step towards evidence-based health management.
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.
80 kg in Context — NHS Weight Categories for Men
The NHS uses BMI (body mass index) to categorise weight status, not absolute weight figures. At 80 kg, your health category depends entirely on your height:
- BMI 18.5–24.9: Healthy weight (NHS target range)
- BMI 25.0–29.9: Overweight
- BMI 30.0–34.9: Obese (Class I)
For a man at 80 kg, calculate your BMI using the free BMI calculator on this page — simply enter your height and weight. The UK average weight for adult men is approximately 85.7 kg (13st 7lbs), so 80 kg is slightly below the average. However, average does not mean healthy. The NHS recommends targeting a healthy BMI rather than a specific weight. Waist circumference also matters: men should aim to keep waist measurement below 94 cm (37 inches) for optimal cardiovascular health.
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.
UK Health Resources and Next Steps
If you're unsure whether 80 kg is healthy for your height, use our free weight converter to see your weight in stone and pounds, then calculate your personal BMI. Your GP can offer tailored advice on whether weight management is appropriate for you. The NHS provides free weight management support through its NHS Weight Loss Plan and local tier 1 services. If you have weight-related health conditions — such as type 2 diabetes, high blood pressure, or sleep apnoea — your GP may refer you to specialist services. Sustainable weight management combines realistic calorie reduction with increased physical activity, and tracking your progress using our free progress tracker can help maintain motivation.
- 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 80 kg in stone and pounds?
80 kg equals approximately 12 stone 8 pounds (12st 8lbs). Use our free weight converter above to switch between kg, stone, and pounds instantly. This UK measurement system is helpful when comparing your weight to NHS guidance and UK health charts.
Is 80 kg overweight for a man?
It depends on your height. At 80 kg, a man who is 1.75 m (5ft 9in) tall would have a BMI of 26 (overweight category). A man who is 1.90 m (6ft 3in) would have a BMI of 22 (healthy). Use our free BMI calculator to find your personal category based on your exact height.
What's the healthy weight range for a man at 5ft 9in (175 cm)?
For a man 1.75 m tall, a healthy BMI range (18.5–24.9) corresponds to approximately 56–75 kg (8st 12lbs to 11st 11lbs). At 80 kg, this height would fall into the overweight category. However, individual health depends on many factors — discuss with your GP for personalised advice.
Can I lose weight safely at 80 kg?
The NHS recommends losing 0.5–1 kg per week as a safe, sustainable rate. A calorie deficit of around 500 kcal daily typically achieves this. If you have underlying health conditions, consult your GP before starting. Our progress tracker can help monitor your weight loss journey over time.
Should I see my GP about my weight at 80 kg?
Yes, if you have symptoms of weight-related health problems (breathlessness, joint pain, fatigue) or existing conditions like high blood pressure or type 2 diabetes, your GP can assess your individual risk. They may refer you to NHS weight management services, which are free and available across the UK.
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.