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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What Is 22.8 Lbs In Kg, And What Does It Mean For Your BMI?
22.8 lbs converts to approximately 10.35 kg. However, your BMI depends entirely on your height. A weight of 10.35 kg alone doesn't tell you whether it falls into a healthy range — you need both weight and height to calculate BMI using the standard metric to imperial weight conversion. Below, we've shown what BMI this weight gives at different heights, along with NHS categories to help you understand your personal health context.
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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.
22.8 Lbs (10.35 Kg) BMI At Different Heights
How BMI is calculated: BMI = weight (kg) ÷ height (m)². At 10.35 kg, you would need to be very short for this weight to fall into any adult category — in practice, 10.35 kg is typical for a young child, not an adult. However, for reference, here's how this weight would convert across different heights:
- At 150 cm (4ft 11in): BMI ≈ 46 (severely obese)
- At 160 cm (5ft 3in): BMI ≈ 40.5 (severely obese)
- At 170 cm (5ft 7in): BMI ≈ 35.8 (obese class II)
- At 180 cm (5ft 11in): BMI ≈ 31.9 (obese class I)
These figures highlight that 10.35 kg is not a typical adult weight. For children, BMI categories are different and age-specific — always consult your GP or health visitor for paediatric weight assessment. Use our free BMI calculator above to check your personal BMI instantly by entering your actual weight and height.
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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 & Why Context Matters
The NHS defines healthy BMI as 18.5–24.9 for most adults. Stone to kg conversions and weight in stone measurements help UK adults understand their weight, but BMI is only one health indicator. It doesn't distinguish between muscle and fat, and doesn't account for where fat is stored. For a more complete picture, your GP may also assess waist circumference (men over 102 cm, women over 88 cm = increased health risk) and consider your medical history. Try our weight converter to switch between kg, stone, and lbs, and use the BMI calculator on this page to check your actual health range based on your specific height and 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 22.8 lbs to kg exactly?
Multiply 22.8 lbs by 0.453592 (the exact conversion factor). 22.8 × 0.453592 = 10.35 kg. For practical purposes, round to 10.35 kg. Use our weight converter above to switch between lbs, kg, stone, and pounds instantly.
Is 10.35 kg a healthy weight for an adult?
No. 10.35 kg is not a typical adult weight — it's approximately the weight of a small child (age 2–3 years). For adults, healthy weight depends entirely on height and BMI. Consult your GP or use our BMI calculator above to check your personal healthy weight range.
What BMI does 10.35 kg give at my height?
BMI depends on height. At 170 cm, 10.35 kg gives a BMI of 35.8 (obese class II). At 180 cm, it's 31.9 (obese class I). For your exact BMI, use our free BMI calculator above — enter your weight and height for an gradual improvement.
Why does BMI matter if it doesn't show muscle vs fat?
BMI is a useful screening tool recognised by the NHS, but it has limitations. It doesn't account for muscle mass, bone density, or fat distribution. Your GP may assess waist circumference, medical history, and other factors alongside BMI for a complete health picture.
How do I know my healthy weight range in stone?
Use our weight converter to switch between kg and stone. A healthy BMI is 18.5–24.9. At 170 cm, healthy weight is roughly 53–72 kg (8st 5lbs–11st 5lbs). For adults of South Asian or Black African heritage, the NHS recommends lower thresholds. Consult your GP for personalised 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.