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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86 Kg — UK Health Context and Weight Guide
86 kilograms is equivalent to 13 stone 8 pounds in UK measurements. For many UK adults, this weight falls into the overweight or obese category depending on height, age, and individual health factors. Understanding where 86 kg sits in relation to NHS health guidance is important for making informed decisions about your wellbeing. This guide explains the UK health context for this weight, including how to calculate your personal BMI and access relevant NHS resources for weight management support.
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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.
How 86 Kg Relates to NHS Weight Guidelines
Whether 86 kg is a healthy weight depends entirely on your height and other health factors. According to NHS guidance, a healthy BMI falls between 18.5 and 24.9. At 86 kg, your BMI will vary significantly based on your height:
- If you are 5ft 4in (163cm), your BMI is approximately 32 — classified as obese (Class I)
- If you are 5ft 8in (173cm), your BMI is approximately 29 — classified as overweight
- If you are 5ft 10in (178cm), your BMI is approximately 27 — classified as overweight
- If you are 6ft (183cm), your BMI is approximately 25.5 — classified as overweight
Use our free BMI calculator above to check your personal BMI instantly. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds, so different health guidance may apply.
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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.
UK Weight Management Support and Resources
If your BMI falls into the overweight or obese range at 86 kg, the NHS offers evidence-based support through its tier 1 and tier 2 weight management services. Your GP can discuss lifestyle changes including diet and physical activity, and refer you to specialist services if needed. For weight management, the NHS recommends a sustainable loss of 0.5–1 kg per week. Our weight converter tool makes it easy to track your progress between kg, stone, and pounds. Many UK adults also benefit from structured programmes, dietary support, and activity planning — all available through NHS services or private weight management providers.
- 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 86 kg in stone and pounds?
86 kg equals 13 stone 8 pounds (or 13st 8lbs). To convert kg to stone, divide by 6.35. Use our free weight converter above to switch between kg, stone, and pounds instantly.
Is 86 kg overweight or obese for a UK adult?
It depends on your height. At 86 kg, someone who is 5ft 8in would have a BMI of 29 (overweight), while someone 5ft 4in would have a BMI of 32 (obese Class I). Use our BMI calculator to find your personal BMI.
What is a healthy weight for someone 86 kg currently?
According to NHS guidance, a healthy BMI is 18.5–24.9. For someone 5ft 8in tall, a healthy weight range is roughly 55–74 kg. Your GP can advise on a realistic and healthy weight target based on your individual health.
How can I manage my weight at 86 kg in the UK?
The NHS recommends a calorie deficit of about 500 kcal per day for gradual weight loss (0.5–1 kg per week). Contact your GP for support, consider a tier 2 weight management programme, or explore NHS digital weight loss tools. Lifestyle changes—diet and activity—are the foundation.
Can I get weight loss medication at 86 kg through the NHS?
Prescription weight loss medication (such as GLP-1 injections) may be available through NHS tier 3 specialist weight management services if you meet eligibility criteria. Your GP can assess and refer you. Availability varies by region. Private prescribing is also an option following online clinical assessment.
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.