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 Does 105 Kilograms Mean for Your Health?
105 kilograms is equivalent to approximately 16 stone 7 pounds in UK measurements. For adults, this weight sits in the overweight or obese category according to NHS guidelines, depending on your height. Understanding how your weight relates to your health is important — and our free weight converter and BMI calculator above can help you determine your personal health context instantly. This guide provides UK health information to help you assess your weight and explore what management options might be available.
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.
Converting 105kg to UK Measurements
105 kilograms converts to approximately:
- 16 stone 7 pounds (16st 7lbs)
- 231.5 pounds (lbs)
Using our free weight converter on this page, you can instantly switch between kilograms, stone, and pounds. The conversion is straightforward: divide kilograms by 6.35 to get stone, or multiply by 2.20462 to get pounds. For UK health assessment, weight alone tells only part of the story — your BMI (body mass index), which combines weight with height, gives much better context. At 105kg, your BMI will range from approximately 27 (overweight) to 41 (obese), depending on whether you're 190cm or 160cm tall. Our BMI calculator above can calculate your exact BMI in seconds.
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.
105kg in NHS Health Context
According to NHS guidance, at 105kg you may be eligible to explore weight management options if you also have a BMI of 27 or above with weight-related health conditions (such as type 2 diabetes, high blood pressure, or sleep apnoea), or a BMI of 30 or above without additional conditions. This is because excess weight increases risk of serious health problems. Even a modest weight reduction of 5–10% (approximately 5–10kg) can significantly improve blood pressure, blood sugar control, and overall cardiovascular health. If you're concerned about your weight, your GP can assess your individual situation and discuss whether lifestyle changes, behaviour support, or prescription weight management treatments might be suitable for you.
- 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.
What is 105kg in stone and pounds?
105 kilograms is approximately 16 stone 7 pounds (16st 7lbs) or 231.5 pounds. Use our free weight converter above to instantly convert between kilograms, stone, and pounds for any weight.
Is 105kg overweight or obese?
Whether 105kg is overweight or obese depends on your height. Use our BMI calculator above to find your exact BMI. Generally, 105kg indicates overweight or obesity for most adults, though BMI assessment requires both weight and height.
What is the healthy weight range for 105kg?
This depends on your height and age. The NHS healthy weight range is a BMI of 18.5–24.9. Our BMI calculator will show your personal healthy weight range based on your height.
Can I access weight loss support through the NHS if I weigh 105kg?
Possibly. NHS weight management support is available through specialist tier 3 services for adults with a BMI of 27 or above with health conditions, or 30 or above without conditions. Your GP can assess your eligibility and refer you if appropriate. Availability varies by region.
Are there prescription weight loss options available in the UK?
Yes. Prescription medications like Mounjaro (tirzepatide) and Wegovy (semaglutide) are available for eligible adults in the UK. These require a clinical assessment and prescription. Access is through NHS specialist services or private prescribers. Individual results vary, and these are always used alongside lifestyle changes.
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.