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 Is 88.6kg in Stone? BMI & Health Context
88.6 kilograms is equivalent to 13 stone 13.6 pounds in UK measurements. However, whether this weight is healthy depends entirely on your height. The same weight gives different BMI values at different heights, putting you in different NHS health categories. Use our free BMI calculator above to check your personal BMI instantly, or read on to see how 88.6kg compares across common UK adult heights.
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.
88.6kg BMI at Different Heights
At 88.6kg, your BMI varies significantly depending on your height. Here's how this weight translates across common UK heights using the standard kg to stone conversion:
- 160cm (5ft 3in): BMI 34.6 — Obese (Class I)
- 165cm (5ft 5in): BMI 32.6 — Obese (Class I)
- 170cm (5ft 7in): BMI 30.7 — Obese (Class I)
- 175cm (5ft 9in): BMI 28.9 — Overweight
- 180cm (5ft 11in): BMI 27.4 — Overweight
- 185cm (6ft 1in): BMI 25.9 — Overweight
According to NHS guidelines, a healthy BMI is between 18.5 and 24.9. At 88.6kg, you would need to be significantly taller (around 195cm+) to fall into the healthy weight range. Use the weight converter on this page to see your weight in stone and pounds, then check your personal BMI above.
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.
Understanding BMI Categories & Limitations
The NHS uses five BMI categories: underweight (below 18.5), healthy weight (18.5–24.9), overweight (25.0–29.9), obese (30.0–34.9), and severely obese (40.0+). At 88.6kg, most adults fall into the overweight or obese range depending on height.
Important: BMI does not account for muscle mass or where fat is stored on your body. An athlete might have a higher BMI but low body fat. Your GP can provide personalised advice about what your BMI means for your individual health. For people of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds due to higher health risks at the same weight.
- 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 88.6kg to stone exactly?
Divide 88.6kg by 6.35029 to get stone. 88.6 ÷ 6.35029 = 13.96 stone (13 stone 13.6 pounds). Use our free weight converter above to convert between kg, stone, and pounds instantly.
What BMI is 88.6kg?
BMI at 88.6kg depends on height. At 170cm it's 30.7 (obese); at 180cm it's 27.4 (overweight); at 190cm it's 24.5 (healthy). Use the free BMI calculator on this page to check your personal BMI.
Is 88.6kg overweight or obese?
According to NHS guidelines, 88.6kg falls into the overweight or obese category for most UK adults. Only very tall adults (190cm+) would have a healthy BMI at this weight. Your GP can advise you based on your individual circumstances.
What should I weigh for a healthy BMI?
For a healthy BMI (18.5–24.9), the target weight depends on your height. At 170cm, healthy weight is 53–71kg; at 175cm, it's 57–76kg; at 180cm, it's 60–81kg. Our BMI calculator can show your personal healthy weight range.
How do I use kg to stone conversion?
To convert kilograms to stone, divide by 6.35. To convert stone to kg, multiply by 6.35. For metric to imperial weight conversions, our free weight converter handles all calculations instantly.
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.