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 6.8 Lbs in Kilograms?
6.8 pounds is equal to approximately 3.08 kilograms. This is a relatively light weight — for context, it's less than a typical newborn baby or similar to a small bag of groceries. If you're tracking your weight in different units or converting between metric to imperial weight measurements, our free weight converter can help you switch between kg, stone, and lbs instantly. Understanding both measurement systems is useful in the UK, where medical records often use kg whilst many people still think of their weight in stone and pounds.
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 & Nearby Values
To convert pounds to kilograms, divide the number of pounds by 2.20462. So 6.8 lbs ÷ 2.20462 = 3.08 kg. The reverse formula works too: to convert kilograms to pounds, multiply by 2.20462.
Here are nearby values for quick reference:
- 5 lbs = 2.27 kg
- 5.5 lbs = 2.49 kg
- 6 lbs = 2.72 kg
- 6.8 lbs = 3.08 kg
- 7 lbs = 3.18 kg
- 7.5 lbs = 3.40 kg
- 8 lbs = 3.63 kg
This conversion is exact using the standard kg to stone and imperial conversions recognised by UK health services and the NHS.
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.
BMI Context at 3.08 kg
At just 3.08 kg, this weight is far below what would apply to adult BMI calculations — it's more relevant for newborn babies or infants. For an adult, a weight this low would indicate severe malnutrition and would require urgent medical attention. Use our free BMI calculator above to check your healthy weight range if you're tracking your own weight in different units. The NHS recommends a healthy BMI between 18.5 and 24.9 for most UK adults, which corresponds to a much heavier weight depending on your 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.
How do I convert 6.8 lbs to kg quickly?
Divide 6.8 by 2.20462. The answer is 3.08 kg. You can also use our free weight converter on this page, which handles conversions between kg, stone, and lbs instantly without needing to remember formulas.
What is 6.8 pounds in stone?
6.8 lbs is approximately 0.49 stone (just under half a stone). In the UK, weight is often expressed as stone and pounds together — so this would be nearly half a stone. One stone equals exactly 14 pounds.
Is 3.08 kg a healthy weight for an adult?
No. At 3.08 kg, this weight is far too low for any adult and would indicate severe malnutrition. This weight is typical for a newborn baby, not an adult. If you have concerns about your weight, speak to your GP.
Why do we use both kg and stones in the UK?
The UK uses both measurement systems. The NHS uses kilograms for medical records and clinical calculations, whilst many UK adults still think of their weight in stone and pounds due to tradition. Our weight converter helps you switch between both systems easily.
How can I track my weight in different units?
Use our free weight converter to instantly switch between kg, stone, and lbs. If you're monitoring weight loss or health changes over time, our progress tracker lets you log measurements in whichever 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.