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 11.2 Pounds in Kilograms?
11.2 pounds converts to approximately 5.08 kilograms. This is a relatively light weight that typically applies to infants, small children, or items rather than adult body weight. If you're converting body weight measurements, understanding both metric and imperial units is essential for UK health contexts where stone, pounds, and kilograms are all commonly used. Our free weight converter above can help you switch between kg, stone, and lbs instantly for any weight value.
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.
BMI At 11.2 Pounds — Examples by Height
Since 11.2 pounds (5.08 kg) is exceptionally light for an adult, BMI calculations at this weight would be significantly below healthy ranges across all adult heights. For context, here are hypothetical BMI examples if an adult weighed 5.08 kg at different heights:
- At 150cm (4ft 11in): BMI would be approximately 2.3 — critically underweight
- At 160cm (5ft 3in): BMI would be approximately 2.0 — critically underweight
- At 170cm (5ft 7in): BMI would be approximately 1.8 — critically underweight
- At 180cm (5ft 11in): BMI would be approximately 1.6 — critically underweight
These figures illustrate that 5.08 kg is not a realistic adult body weight. Use our free BMI calculator above to determine your actual BMI if you're checking your own health status.
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 BMI Categories and What They Mean
According to NHS guidelines, a healthy BMI for adults falls between 18.5 and 24.9. Any BMI below 18.5 is classified as underweight and may indicate nutritional concerns requiring GP assessment. For people of South Asian, Chinese, Black African, or Black Caribbean heritage, slightly lower thresholds apply — healthy BMI starts at 18.5 but upper limit is 22.9 instead of 24.9.
BMI is a useful screening tool but has important limitations: it doesn't account for muscle mass, bone density, or fat distribution. Your GP can provide personalised advice about what your BMI means for your individual health, particularly if you're concerned about being underweight or overweight.
- 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 11.2 pounds in kilograms exactly?
11.2 pounds equals 5.08 kilograms. The exact conversion uses the formula: pounds × 0.453592 = kilograms. So 11.2 × 0.453592 = 5.08 kg. You can verify this instantly using our free weight converter on this page, which handles any pound-to-kilogram conversion.
Is 11.2 pounds a healthy weight for an adult?
No, 11.2 pounds (5.08 kg) is not a realistic or healthy weight for any adult. It would represent severe malnutrition. For context, healthy adult weights typically range from 50 kg to 100+ kg depending on height. If you're concerned about being significantly underweight, please contact your GP for assessment and support.
Why does BMI matter for weight health?
BMI helps identify whether your weight is within a healthy range for your height, which correlates with reduced risk of weight-related diseases like type 2 diabetes and cardiovascular disease. However, BMI alone doesn't tell the complete story — your GP considers other factors like waist measurement, fitness level, and medical history when assessing your health.
How do I convert pounds to kilograms for my own weight?
Divide your weight in pounds by 2.20462 to get kilograms. Or multiply by 0.453592. For example, if you weigh 154 pounds: 154 ÷ 2.20462 = 70 kg. Our free weight converter tool on this page does this calculation instantly for any weight value you enter.
Should I use kg or stone for tracking my weight in the UK?
Both are widely used in the UK — your choice depends on personal preference. Many UK adults use stone and pounds, while healthcare professionals often use kilograms for clinical purposes. Use whichever you find easiest to track consistently. Our weight converter and progress tracker help you track in whatever units you prefer.
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.