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 9.4 Lbs in Kilograms?
9.4 pounds is equal to 4.26 kilograms. This conversion uses the standard imperial to metric formula: pounds multiplied by 0.453592. Whether you're tracking weight in stone, checking a food label, or monitoring health metrics, knowing how to convert between pounds and kilograms is essential in the UK where both measurements are commonly used. Use our free weight converter above to switch between kg, stone, and lbs instantly, or follow the simple conversion formula below.
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.
Conversion Table: Pounds to Kilograms
9.4 lbs = 4.26 kg
To convert pounds to kilograms, multiply the weight in pounds by 0.453592. The formula is straightforward: lbs × 0.453592 = kg.
Here's a quick reference table showing 9.4 lbs in context with nearby weight values:
- 7.4 lbs = 3.36 kg
- 8.4 lbs = 3.81 kg
- 9.4 lbs = 4.26 kg
- 10.4 lbs = 4.72 kg
- 11.4 lbs = 5.17 kg
This conversion works the same way for any weight: multiply pounds by 0.453592 to get the metric equivalent. If you need to convert kilograms back to stone and pounds — the reverse of metric to imperial weight conversion — divide the kg by 6.35029 to get stone.
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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.
BMI Context at 9.4 Lbs (4.26 Kg)
At 9.4 lbs (4.26 kg), this weight alone is too light to calculate a meaningful BMI for an adult. However, if this represents part of your total body weight, use our free BMI calculator above to check your personal BMI status against NHS guidelines. For reference, a healthy BMI for UK adults falls between 18.5 and 24.9. At average UK heights (men 175 cm, women 162 cm), a total weight of around 58–76 kg generally sits within the healthy weight range. If you're tracking weight loss or gain, our free progress tracker helps you monitor changes over time and maintain motivation towards your health goals.
- 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 9.4 pounds to kilograms?
Multiply 9.4 by 0.453592. The result is 4.26 kg. This is the standard imperial-to-metric conversion used worldwide, including by the NHS and all UK health services.
What is 9.4 lbs in stone and pounds?
9.4 lbs equals 0 stone and 9.4 pounds. One stone equals exactly 14 pounds, so any weight under 14 lbs is expressed as just pounds. To convert kilograms to stone, divide by 6.35029.
Is 9.4 kg a healthy weight for an adult?
9.4 kg is far too low to be a healthy weight for any adult. A healthy BMI requires a minimum weight of approximately 30–35 kg depending on height. If this is your current weight, please contact your GP immediately for health assessment.
Why do we use both kg and lbs in the UK?
Historically, the UK used imperial measurements (stone and pounds). Today, the NHS officially uses kilograms for clinical records, but many UK adults still think in stone and pounds for everyday weight discussions. Both systems are widely used.
Can I use your weight converter for this calculation?
Yes. Our free weight converter on this page converts between kilograms, stone, pounds, and lbs instantly. You can also use it to convert any weight value, not just 9.4 lbs.
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.