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
What's 84kg in Stone — UK Weight Conversion
84kg converts to approximately 13 stone and 3 pounds in UK measurements. This weight falls into the overweight category according to NHS BMI guidelines for most adults, though the health implications depend on your height, age, and overall fitness. Use our free weight converter above to check the exact conversion, and our BMI calculator to see where your weight sits on the NHS healthy weight scale. Understanding your weight in familiar UK units helps you track progress and discuss health goals with your GP more effectively.
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.
84kg in UK Context — NHS Health Guidance
At 84kg (13 stone 3lbs), most UK adults would fall into the overweight category on the NHS BMI scale, though individual health depends on height and other factors. For context, the UK average adult weight is around 85.7kg for men and 71.6kg for women, so 84kg is slightly above average.
- For a person 5ft 8in (173cm) tall: BMI would be approximately 29.5 — just below the obesity threshold of 30
- For a person 5ft 10in (178cm) tall: BMI would be approximately 27.0 — solidly in the overweight range
- For a person 6ft (183cm) tall: BMI would be approximately 25.1 — approaching the healthy weight range
The NHS emphasises that BMI is a screening tool and doesn't account for muscle mass or fitness levels. Your GP can provide personalised guidance on what 84kg means for 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.
Managing Your Weight — UK Tools and Resources
If you're looking to understand or manage your weight, the NHS offers several free resources and tier-based support. Our BMI calculator on this page instantly shows where your weight sits relative to NHS healthy weight guidelines, and our weight converter helps you track progress in units you understand. For weight loss support, the NHS Weight Loss Plan offers free guidance, and your GP can refer you to local weight management services. Even a modest 5–10% weight reduction can improve health outcomes including blood pressure, blood sugar control, and cardiovascular risk.
- 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.
Is 84kg overweight?
For most adults, 84kg is in the overweight category on the NHS BMI scale. However, it depends on your height — someone 6ft tall at 84kg may be close to healthy weight, while someone 5ft 4in would be well into overweight. Use the BMI calculator on this page to check your personal BMI.
What's 84kg in imperial measurements?
84kg equals 13 stone 3.4 pounds, or 185.2 pounds. Use our free weight converter above to switch between kg, stone, and pounds instantly.
What should I weigh if I'm a certain height?
The NHS healthy weight range depends on height. For example, at 5ft 8in, a healthy weight is 53–71kg (8st 5lbs to 11st 2lbs). Our BMI calculator shows the healthy weight range for your specific height instantly.
How can I track weight changes from 84kg?
Our free progress tracker lets you log weight changes over time and see trends. Combined with the BMI calculator, it helps you understand whether changes are moving towards a healthier range for your height.
Should I see my GP about my weight at 84kg?
If you're concerned about your weight or general health, speaking with your GP is always worthwhile. They can assess your individual health picture, discuss any weight-related health conditions, and refer you to NHS weight management support if appropriate.
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.