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 BMI Does 10.8 Kg Give You?
10.8 kg converts to 1 stone 8.8 lbs in UK measurements. However, your BMI depends entirely on your height — the same weight can fall into different NHS categories depending on how tall you are. Use our free BMI calculator above to find your personal BMI instantly, or read on to see what 10.8 kg means at different heights across the healthy weight, overweight, and obese ranges.
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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.
BMI at Different Heights for 10.8 Kg
At 10.8 kg, your BMI varies significantly depending on your height. Here are example BMI values across common UK heights:
- 150 cm (4ft 11in): BMI 48.1 — Severely obese (Class III)
- 160 cm (5ft 3in): BMI 42.2 — Severely obese (Class III)
- 170 cm (5ft 7in): BMI 37.2 — Obese (Class II)
- 175 cm (5ft 9in): BMI 35.3 — Obese (Class II)
- 180 cm (5ft 11in): BMI 33.3 — Obese (Class I)
- 190 cm (6ft 3in): BMI 29.9 — Overweight
These calculations show why height matters — a weight that falls into the obese category at shorter heights may only be overweight at taller heights. Your GP can provide personalised guidance based on your individual height and health.
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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 BMI Categories and What They Mean
The NHS uses standard BMI ranges to categorise weight: below 18.5 is underweight, 18.5–24.9 is healthy weight, 25–29.9 is overweight, and 30 and above indicates obesity. At 10.8 kg, most adults would fall into the obese range unless they are very tall. It's important to remember that BMI is a screening tool, not a diagnostic measure — it doesn't account for muscle mass, bone density, or where fat is stored. Waist circumference and overall health also matter. Use our weight converter to check your weight in other units, and discuss your results with your GP for personalised health advice.
- 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 does 10.8 kg equal in stone and pounds?
10.8 kg equals 1 stone and 8.8 pounds (written as 1st 8.8lbs). To convert kilograms to stone, divide by 6.35029. This is the standard UK weight conversion used across the NHS and in UK healthcare.
Is 10.8 kg a healthy weight?
Whether 10.8 kg is healthy depends entirely on your height and age. For most adults, 10.8 kg would be well below a healthy weight range. For infants and young children, it may be appropriate. Always consult your GP for personalised guidance based on your individual circumstances.
How do I know my BMI category at this weight?
Use our free BMI calculator above — enter your weight (10.8 kg) and height, and it will instantly show your BMI and NHS category. Alternatively, multiply your height in metres by itself, then divide 10.8 by that number. Results vary significantly by height.
What's the difference between stone and kg for weight?
Stone is the traditional UK weight unit (1 stone = 14 pounds). Kilograms are the metric standard used globally and by the NHS. 1 kg equals approximately 0.157 stone. Our weight converter above makes it easy to switch between kg, stone, and pounds instantly.
Should I be concerned about my weight at 10.8 kg?
For a healthy adult, 10.8 kg would be significantly below a safe weight. If this applies to you, speak to your GP immediately. If this is for a child, use the NHS healthy weight calculator for children or contact your health visitor, as adult BMI categories don't apply to young people.
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.