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Used by Mounjaro & Wegovy patients across the UK

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
Get the guide + free tracker — £1.99 →

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GLP-1 Medication Guide — 11 chapters, 100+ pages, NHS-aligned with free 52-week weight loss tracker calendar
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What Is 79.5 Kg In Stone And Lbs?

79.5 kg is equivalent to 12 stone 6.4 lbs in UK measurements. However, your BMI at this weight depends entirely on your height — the same weight can be healthy for a tall person but overweight for someone shorter. Use our free BMI calculator above to find your personal BMI, or read on to see example BMI values at different heights for 79.5 kg.

10,000+ calculations today · NHS-aligned thresholds · 100% free

26%of UK adults are living with obesityNHS Digital, 2023
64%of adults in England are overweight or obeseHealth Survey for England
£6.5bnannual cost of obesity to the NHSPublic Health England
4.7Mpeople in England eligible for weight loss drugsNICE estimates, 2024

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.

Below 18.5Underweight
18.5 – 24.9Healthy
25 – 29.9Overweight
30+Obese

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.

BMI At 79.5 Kg — Examples By Height

At 79.5 kg, your BMI varies significantly depending on your height. Here are six common height examples:

  • 5ft 2in (158 cm): BMI = 29.0 (Overweight, NHS category)
  • 5ft 4in (163 cm): BMI = 26.5 (Overweight)
  • 5ft 6in (168 cm): BMI = 28.0 (Overweight)
  • 5ft 8in (173 cm): BMI = 26.5 (Overweight)
  • 5ft 10in (178 cm): BMI = 25.1 (Healthy weight, just above threshold)
  • 6ft 0in (183 cm): BMI = 23.8 (Healthy weight)

To convert kilogram to stone for other heights, try the weight converter on this page. Your GP can provide personalised advice about what your BMI means for your individual health.

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How It Works

Three simple steps to understand your weight and take action.

1Check Your BMI

Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.

2Explore Your Options

If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.

3Track Your Progress

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 BMI Categories And What They Mean

The NHS defines healthy BMI as 18.5–24.9. At 79.5 kg, most heights fall in the Overweight category (BMI 25.0–29.9). This does not mean you are unhealthy — BMI is a screening tool only. It has important limitations: it does not distinguish between muscle and fat, does not account for where fat is stored (belly fat carries higher health risk), and may be less accurate for older adults or very muscular individuals.

For South Asian, Chinese, Black African, or Black Caribbean adults, the NHS recommends lower BMI thresholds — healthy weight starts at BMI 18.5–22.9. Use our BMI calculator above to check your personal category and discuss results with your GP if you have concerns.

Mounjaro (Tirzepatide)
  • 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
Read our full Mounjaro guide →
Wegovy (Semaglutide)
  • 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
Read our full Wegovy guide →

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.

FeatureMounjaroWegovy
Drug classDual GIP/GLP-1 agonistGLP-1 agonist
Active ingredientTirzepatideSemaglutide
Avg. weight loss15–22.5%12–17%
Key trialSURMOUNT-1 (2022)STEP 1 (2021)
Max dose15 mg weekly2.4 mg weekly
Escalation period20–32 weeks16–20 weeks
AdministrationWeekly injection (pen)Weekly injection (pen)
NHS availabilityPrivate prescription onlyNHS & private
Approx. private cost£150–£250/month£150–£300/month
Common side effectsNausea, diarrhoea, constipationNausea, 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.

Standard eligibility
  • BMI of 30 or above (obese)
  • Age 18 or over
  • No contraindicated conditions
  • Committed to lifestyle changes
With comorbidities
  • 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 kg to stone and pounds exactly?

Divide 79.5 by 6.35029 to get stone, then multiply the decimal by 14 to get pounds. This gives 12 stone 6.4 lbs. Use our free weight converter on this page for instant conversion between kg, stone, and lbs.

Is 79.5 kg a healthy weight?

It depends on your height. At 79.5 kg, a person who is 5ft 10in or taller typically falls in the healthy BMI range (18.5–24.9), while shorter people may be in the overweight range. Use the BMI calculator above to check your personal BMI and discuss with your GP.

What does "overweight" mean in the NHS definition?

NHS defines overweight as BMI 25.0–29.9. This classification indicates increased health risk compared to healthy weight (18.5–24.9) but is distinct from obesity (BMI 30+). Many factors influence health beyond BMI, including fitness, diet, and genetics.

Does muscle weight affect BMI at 79.5 kg?

Yes. BMI does not distinguish between muscle and fat, so a very muscular person at 79.5 kg may have a higher BMI but lower body fat than the BMI category suggests. Your GP or a health professional can assess your individual health context.

Should I aim to lose weight if I'm 79.5 kg?

This is a personal decision based on your BMI, height, health conditions, and GP advice. The NHS recommends weight loss of 0.5–1 kg per week if appropriate. Your GP can help you decide whether weight management is right for you and discuss safe approaches.

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.

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