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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What Is 79.5 Kilos In Stones And Pounds?
79.5 kilos converts to 12 stone 7 pounds (12st 7lbs). Whether this weight is healthy depends entirely on your height, age, and overall health. Using NHS guidance, a weight of 79.5kg could be healthy, overweight, or obese depending on how tall you are. This guide explains how to work out if 79.5kg is a healthy weight for you, shows you healthy weight ranges for different heights, and gives you practical next steps. Use our free BMI calculator above to check your personal BMI instantly based on your actual height and 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 Ranges For Different Heights
To determine if 79.5kg (12st 7lbs) is healthy, you need to calculate your BMI or check your weight against healthy ranges for your specific height. The NHS defines a healthy BMI as 18.5 to 24.9 for most adults. Here are three real-world examples showing how the same weight of 79.5kg can mean very different things depending on height:
- At 5ft 4in (163cm): 79.5kg gives a BMI of 29.9 — this falls in the overweight range (just below obese). A healthy weight range for this height is 48–64kg.
- At 5ft 8in (173cm): 79.5kg gives a BMI of 26.6 — this falls in the overweight range. A healthy weight range for this height is 55–74kg.
- At 5ft 11in (180cm): 79.5kg gives a BMI of 22.1 — this falls in the healthy weight range. A healthy weight range for this height is 60–81kg.
The key takeaway: use our free weight converter to switch between metric and imperial measurements, then calculate your BMI with your actual height to get your personalised result.
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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.
NHS Guidance And What To Do Next
The NHS recommends that adults aim for a BMI between 18.5 and 24.9, though people of South Asian, Chinese, Black African, or Black Caribbean heritage should use slightly lower thresholds (18.5–22.9). At 79.5kg, your health status depends on your height and waist measurement. Waist circumference also matters: men should aim for under 94cm (37in) and women under 80cm (31.5in) for reduced health risk. If you've calculated that 79.5kg puts you in the overweight or obese category for your height, speaking to your GP is a sensible first step — they can assess your individual health, discuss sustainable weight management options, and rule out any underlying medical factors.
- 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.
How do I convert 79.5 kilos to stones and pounds?
Divide 79.5 by 6.35 to get stone (12.52 stone), then multiply the decimal by 14 to get pounds. 79.5kg = 12 stone 7.4 pounds. Use our free weight converter above for instant conversions between kilograms, stone, and pounds.
Is 79.5kg a healthy weight?
It depends on your height. At 5ft 8in, 79.5kg is overweight (BMI 26.6). At 5ft 11in, it's healthy (BMI 22.1). Calculate your personal BMI using our free BMI calculator to find out if this weight is healthy for you.
What's the healthy weight range for someone 5ft 8in tall?
For 5ft 8in (173cm), the healthy weight range is approximately 55–74kg (8st 9lbs to 11st 8lbs) according to NHS guidelines. At 79.5kg, you would fall slightly into the overweight category.
What should I do if 79.5kg is overweight for my height?
If your BMI shows you're overweight, speaking to your GP is a good first step. They can discuss sustainable weight management options, rule out underlying health conditions, and provide personalised advice. Small lifestyle changes often make a real difference.
Does waist measurement matter as much as weight?
Yes. Waist circumference is an important health indicator alongside BMI. Men should aim for under 94cm (37in) and women under 80cm (31.5in). Even if your weight is in a healthy range, excess abdominal fat can indicate health risk, so measuring your waist gives 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.