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 Kg In Stones And Pounds?
108 kilograms is equivalent to 17 stones and 0.6 pounds (or approximately 17 stone 1 lb) in UK measurements. However, your BMI — which indicates whether your weight is healthy for your height — depends entirely on how tall you are. Use our free BMI calculator above to discover your personal BMI instantly, or read on to see how 108 kg converts to different health categories at various heights.
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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 Kg BMI At Different Heights
When converting kilograms to stone, you divide by 6.35029, which gives us 108 kg = 17 stone 1 lb. However, BMI depends on both weight and height. Here's how 108 kg converts to BMI at common UK adult heights:
- At 160 cm (5ft 3in): BMI = 42.2 (Severely obese — Class III)
- At 165 cm (5ft 5in): BMI = 39.7 (Obese — Class II)
- At 170 cm (5ft 7in): BMI = 37.4 (Obese — Class II)
- At 175 cm (5ft 9in): BMI = 35.3 (Obese — Class II)
- At 180 cm (5ft 11in): BMI = 33.3 (Obese — Class I)
- At 185 cm (6ft 1in): BMI = 31.6 (Obese — Class I)
These examples show how weight in stone and pounds translates differently depending on height. Your GP or our free BMI calculator can assess your personal health category.
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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.
Understanding NHS BMI Categories
According to NHS guidelines, BMI categories are:
- Below 18.5 = Underweight
- 18.5–24.9 = Healthy weight
- 25.0–29.9 = Overweight
- 30.0–34.9 = Obese (Class I)
- 35.0–39.9 = Obese (Class II)
- 40.0+ = Severely obese (Class III)
At 108 kg, most heights fall into the obese range. However, BMI has limitations — it doesn't account for muscle mass, bone density, or where fat is stored. Waist circumference and overall health are also important. Your GP can provide personalised health advice based on your individual circumstances.
- 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 kg to stones and pounds?
Divide 108 by 6.35029 to get stones. 108 kg equals approximately 17 stone 1 pound (or 17.1 stones). To convert kilograms to stone and pounds separately, use our free weight converter above for instant, accurate conversions.
What is my BMI if I weigh 108 kg?
Your BMI at 108 kg depends on your height. For example, at 5ft 7in (170cm) you'd have a BMI of approximately 37.4, which falls into the obese category. Use our free BMI calculator to find your exact BMI based on your personal height.
Is 108 kg overweight according to NHS guidelines?
At 108 kg, most adults fall into the obese BMI category according to NHS thresholds, depending on height. However, BMI is just one health indicator. Other factors like waist circumference, fitness level, and medical history matter too. Your GP can assess your individual health.
What is the healthy weight range for someone who weighs 108 kg?
The healthy weight range depends on your height. For someone 170 cm tall, a healthy BMI range (18.5–24.9) means weighing 53–72 kg. Your GP or our BMI calculator can tell you the healthy range for your specific height and help you set realistic goals.
Can I use an online calculator to check my BMI at 108 kg?
Yes. Our free BMI calculator above lets you enter 108 kg and your height to see your exact BMI and NHS category instantly. You can also track your progress over time using our free progress tracker if you're working towards a healthier weight.
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.