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
9.4 Pounds to Kilograms
9.4 pounds is equal to approximately 4.26 kilograms. This straightforward conversion uses the standard metric to imperial weight conversion factor of 1 pound equals 0.453592 kg. Whether you're checking a recipe, tracking health metrics, or converting imperial measurements for NHS guidance, understanding how to convert pounds to kilograms is useful for UK adults who encounter both measurement systems. Use our free weight converter above to switch between kg, stone, and pounds instantly for any 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.
Conversion Formula and Nearby Values
To convert 9.4 pounds to kilograms, multiply the pound value by 0.453592. The formula is straightforward: 9.4 lbs × 0.453592 = 4.26 kg.
Here are nearby values to help you understand the conversion pattern:
- 8.0 lbs = 3.63 kg
- 8.5 lbs = 3.86 kg
- 9.0 lbs = 4.08 kg
- 9.4 lbs = 4.26 kg
- 10.0 lbs = 4.54 kg
- 10.5 lbs = 4.76 kg
- 11.0 lbs = 4.99 kg
This conversion table shows how pound and kilogram values relate across a small range, making it easy to estimate conversions without a calculator. The relationship between stone to kg and other weight units follows the same consistent mathematical principle.
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.
Weight Context at 9.4 Pounds
At 4.26 kg, this weight is most relevant in neonatal or paediatric contexts in the UK. Newborn babies typically weigh between 2.5 kg and 4.5 kg at birth, so 9.4 pounds falls within normal healthy birth weight range. For adult weight discussions using NHS guidelines, measurements are typically much higher. However, understanding metric to imperial weight conversion remains important for tracking health metrics, medical records, and comparing measurements across different systems. Try our free BMI calculator above to check healthy weight ranges for any adult height.
- 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.
Why do I need to convert pounds to kilograms?
The UK uses both imperial (pounds and stone) and metric (kilograms) measurements. NHS clinical records often use kg, while many UK adults still prefer stone and pounds. Converting between the two helps you understand health information, track progress consistently, and compare measurements across different healthcare contexts.
What is the exact conversion factor from pounds to kg?
One pound equals exactly 0.453592 kilograms. This is the standard international conversion factor. To convert any pound value to kilograms, simply multiply the pounds by 0.453592. For example, 9.4 lbs × 0.453592 = 4.26 kg.
Is 4.26 kg a healthy weight for adults?
For adults, 4.26 kg would be dangerously low. Healthy adult weight ranges from approximately 50 kg to 100+ kg depending on height. Use our free weight converter and BMI calculator above to find healthy weight ranges for any specific height using NHS guidelines.
How does 9.4 pounds compare to stone and pounds?
9.4 pounds equals 0 stone and 9.4 pounds (since 1 stone = 14 pounds). In UK measurements, this would be written as 9.4 lbs or 0st 9.4lbs. Stone and pounds are the traditional British weight units, though kilograms are increasingly used in medical contexts.
Can I use this conversion for other weights?
Yes, the conversion formula works for any weight. Multiply any pound value by 0.453592 to get kilograms. Our free weight converter above allows you to convert between kg, stone, and pounds instantly for any value—just enter your measurement and switch units.
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.