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
80.6 Kilos in Pounds — What's a Healthy Weight?
80.6 kilos converts to 177.7 pounds. Whether this is a healthy weight entirely depends on your height. A weight that's healthy for someone 5ft 9in tall would be overweight for someone 5ft 2in, and underweight for someone 6ft 2in. Use our free BMI calculator above to see exactly where your weight sits on the NHS health scale, and we'll show you the healthy weight range for your specific height.
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.
Healthy Weight Ranges by Height
At 80.6kg (177.7 lbs), your health status depends entirely on your height. Here are three concrete examples using NHS BMI categories:
- 5ft 4in (163cm): 80.6kg gives a BMI of 30.4 — this is obese (Class I) on the NHS scale. The healthy range at this height is 47–63kg.
- 5ft 8in (173cm): 80.6kg gives a BMI of 27.0 — this is overweight. The healthy range is 55–75kg.
- 5ft 11in (180cm): 80.6kg gives a BMI of 22.3 — this is healthy weight. The healthy range is 60–81kg.
To convert your weight between kilos in stone and pounds using standard kg to stone conversion, or to find your exact healthy weight range, use the weight converter and BMI calculator on this page. Remember: these are screening tools. Your GP can provide personalised advice based on your individual 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.
NHS Guidance and Next Steps
According to NHS guidelines, a healthy BMI is 18.5–24.9. If your BMI falls above 25, waist measurement is also important — the NHS recommends measuring at your natural waist level. Men with waist circumference over 94cm (37in) face increased cardiovascular risk; women over 80cm (31.5in) face similar increased risk. If you're concerned about your weight or health, your GP can discuss personalised options including lifestyle changes, and if appropriate, refer you to specialist weight management services. Weight loss of even 5–10% can bring meaningful health benefits.
- 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 does 80.6kg equal in pounds?
80.6 kilograms equals 177.7 pounds (or lbs). To convert any kilogram weight to pounds, multiply by 2.20462. For metric to imperial weight conversions, use our free weight converter above to switch between kg, stone, and pounds instantly.
Is 80.6kg a healthy weight?
That depends entirely on your height. At 5ft 8in, it's slightly overweight. At 5ft 11in, it's healthy. At 5ft 4in, it's obese. Use our free BMI calculator to check your personal BMI instantly — it accounts for your height and shows you the healthy range for you.
How do I know if I need to lose weight?
The NHS recommends checking your BMI first. A healthy BMI is 18.5–24.9. If your BMI is 25 or above, your GP can offer advice. Weight loss of 5–10% of your current weight can improve health markers like blood pressure and blood sugar, even if you don't reach a "healthy" BMI.
What's the healthy weight range at my height?
Use our BMI calculator on this page — enter your height and current weight, and it will instantly show your healthy weight range. The NHS also provides these ranges on their official weight guides. Your GP can discuss your personal healthy weight target.
Should I try to lose weight if I'm outside the healthy range?
Speak to your GP, who can assess your overall health. Being overweight doesn't mean you're unhealthy, and being "healthy weight" doesn't assures health. Your GP considers your fitness, blood pressure, family history, and other factors — not just weight alone.
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.