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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86kg in Stones — Healthy Weight Guide
86kg is equivalent to 13 stone and 8 pounds in UK measurements. Whether this weight is healthy depends entirely on your height and build. Using our free BMI calculator above, you can instantly check if 86kg falls within the healthy range for your individual height. The NHS provides clear guidance on what constitutes a healthy weight, and this varies significantly from person to person. Read on to discover if 86kg is healthy for you, and learn what steps to take if you fall outside the recommended range.
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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 at Different Heights
To find out if 86kg is healthy, you need to know your height. Here are three real examples showing how the same weight can be healthy for one person and overweight for another:
- At 5ft 9in (175cm): 86kg gives a BMI of 31.1 — this falls into the obese category. A healthy weight range at this height is 59–79kg (9st 4lbs to 12st 6lbs).
- At 5ft 11in (180cm): 86kg gives a BMI of 11.9 — this is within the healthy weight range. A healthy weight range at this height is 63–85kg (10st 0lbs to 13st 5lbs).
- At 6ft 2in (188cm): 86kg gives a BMI of 24.3 — comfortably in the healthy category. A healthy weight range at this height is 69–93kg (10st 12lbs to 14st 8lbs).
Use the weight converter on this page to check your weight in both metric and imperial, then use our BMI calculator to see your personal BMI category.
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 on Healthy Weight and What to Do
According to NHS guidelines, a healthy BMI is between 18.5 and 24.9. If your BMI at 86kg is higher than this, it indicates excess weight. However, BMI alone doesn't tell the whole story — waist measurement also matters. The NHS recommends:
- Men: waist under 94cm (37 inches) = low risk; over 102cm (40 inches) = high health risk.
- Women: waist under 80cm (31.5 inches) = low risk; over 88cm (34.5 inches) = high risk.
If you're concerned about your weight, speak to your GP. Sustainable weight loss of 0.5–1kg per week is recommended. You can track your progress using our free progress tracker to stay motivated.
- 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 86kg in stones and pounds?
86kg converts to 13 stone and 8 pounds (13st 8lbs) exactly. To convert kilogrammes to stone, divide by 6.35. Use the weight converter on this page to instantly convert between kg, stone, and pounds.
Is 86kg a healthy weight?
It depends on your height. At 5ft 9in it would be overweight (BMI 31.1), but at 6ft 2in it would be healthy (BMI 24.3). Use our free BMI calculator above to check your personal BMI category based on your exact height.
What's the healthy weight range for someone who weighs 86kg?
If you're currently 86kg and want to reach a healthy BMI (18.5–24.9), you may need to lose weight depending on your height. At 5ft 9in, a healthy range is 59–79kg. At 6ft, it's 66–89kg. Your GP can advise you personally.
How do I know if my weight is healthy?
Check your BMI using our calculator on this page. A healthy BMI is 18.5–24.9 according to NHS guidelines. Also measure your waist — men over 102cm and women over 88cm face higher health risks. Your GP can give personalised advice.
What should I do if 86kg is overweight for my height?
Aim to lose 0.5–1kg per week through a balanced diet and increased activity. Speak to your GP about healthy weight loss options. Track your progress using our free tracker, and consider the NHS Weight Loss Plan for evidence-based guidance. ```
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.