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 108 Lbs in Kilograms?
108 pounds is equal to approximately 48.99 kilograms (or 48.99 kg). To convert pounds to kilograms, you divide the weight in pounds by 2.20462. This conversion is particularly useful if you're tracking your weight in metric units, which the NHS uses for clinical measurements. Use our free weight converter above to switch between pounds, kilograms, and UK stone measurements instantly. Understanding your weight in different units helps you track progress and compare health guidelines across different regions.
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.
108 Lbs to Kg Conversion Table and Formula
The exact conversion formula is straightforward: divide pounds by 2.20462 to get kilograms. So 108 lbs ÷ 2.20462 = 48.99 kg. Below is a handy reference table showing values 5 pounds either side, so you can see how nearby weights convert:
- 103 lbs = 46.72 kg
- 104 lbs = 47.17 kg
- 105 lbs = 47.63 kg
- 106 lbs = 48.08 kg
- 107 lbs = 48.54 kg
- 108 lbs = 48.99 kg
- 109 lbs = 49.44 kg
- 110 lbs = 49.90 kg
- 111 lbs = 50.35 kg
- 112 lbs = 50.80 kg
- 113 lbs = 51.26 kg
If you need to convert to stone and pounds (the traditional UK measurement), 48.99 kg is approximately 7 stone and 10 lbs. You can also use metric to imperial weight conversion tools to cross-check your calculations instantly.
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 and Healthy Weight Context at 108 Lbs
At 108 lbs (48.99 kg), your BMI depends on your height. For example, at an average UK female height of 5ft 4in (163 cm), a weight of 108 lbs gives a BMI of 18.8, which falls comfortably in the healthy weight range of 18.5 to 24.9 according to NHS guidelines. However, at 5ft 2in (157 cm), the same weight would give a BMI of 20.1 — still healthy. Use our free BMI calculator above to work out your personal BMI and see whether 108 lbs is in the healthy range for your specific height. If you're tracking weight loss or gain, our progress tracker can help you log changes over time and identify trends in your health metrics.
- 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 108 pounds to kilograms?
Divide 108 by 2.20462 to get 48.99 kg. This is the standard conversion factor used globally. Most online weight converters use this exact formula. You can also use our free weight converter tool on this page for gradual improvement across multiple units.
Is 108 lbs a healthy weight?
It depends on your height. At average UK heights, 108 lbs typically falls in the healthy BMI range of 18.5 to 24.9. Use our BMI calculator to check your personal BMI. For personalised advice about whether this weight is healthy for you, speak with your GP.
What is 108 lbs in stone and pounds?
108 lbs converts to 7 stone and 10 lbs. To calculate: 108 ÷ 14 = 7 remainder 10. In metric terms, that's 48.99 kg. Our weight converter can show you all three measurements instantly.
Why do UK health services use kilograms instead of pounds?
The NHS uses kilograms (metric) because it's the international standard for clinical measurements and easier for calculating medication doses and BMI accurately. However, many UK adults still prefer stone and pounds for personal weight tracking, so having all three units available is helpful.
How can I track my weight in different units?
Use our free progress tracker to log your weight in whatever unit you prefer — kg, lbs, or stone. The tracker automatically calculates your BMI at each entry and displays trends over time, helping you monitor your health journey clearly.
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.