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 105 kilos in stone?
105 kilograms is equal to 16 stone and 8.3 pounds (16st 8.3lbs). To convert kilograms to stone, simply divide the kilogram value by 6.35029 — the exact conversion factor. This UK weight converter makes it easy to switch between metric and imperial measurements. Whether you're checking your weight against NHS health guidelines or simply need a quick calculation, understanding your weight in stone and pounds is useful for health monitoring in the UK.
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 Table — 105kg and Nearby Values
Use this kg to stone conversion table to see how 105 kilos compares to nearby weights:
- 100 kg = 15 stone 10.3lbs
- 102 kg = 16 stone 0.6lbs
- 104 kg = 16 stone 5.5lbs
- 105 kg = 16 stone 8.3lbs
- 106 kg = 16 stone 11.2lbs
- 108 kg = 17 stone 0.9lbs
- 110 kg = 17 stone 5.7lbs
Formula: Divide kilograms by 6.35029 to get stone. To convert between stone and pounds: multiply stone by 14 to get the total pounds, then add any additional pounds. You can also use our free weight converter above for instant calculations across metric and imperial units.
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.
Is 105kg a Healthy Weight? BMI and Health Context
At 105 kilos, your health depends on your height and overall fitness. Use our free BMI calculator above to check your personal BMI — at average UK heights, 105kg typically falls in the overweight to obese range according to NHS guidelines. For example, at 5ft 8in (173cm), a weight of 105kg gives a BMI of approximately 35.1, which is in the obese category. The NHS recommends a healthy BMI between 18.5 and 24.9. Even a 5–10% weight reduction can improve blood pressure, blood sugar control, and joint health. Your GP can discuss whether weight management might benefit your individual health profile.
- 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 105kg to stone manually?
Divide 105 by 6.35029. The answer is 16.53 stone, which equals 16 stone and 8.3 pounds. Each stone contains exactly 14 pounds, so 0.53 × 14 = 7.4 pounds. Round to 8.3 pounds for practical use. Our weight converter above calculates this instantly.
What is 105 kilos in pounds only?
105 kilograms equals approximately 231.5 pounds (lbs). To convert kg to pounds, multiply by 2.20462. This is useful if you need imperial pounds rather than stone and pounds format. Most UK adults use stone, but pounds are helpful for medical or scientific contexts.
Is 105kg overweight or obese?
It depends on your height. At average UK heights (around 173cm for men, 162cm for women), 105kg typically falls in the obese BMI range (30+) according to NHS guidelines. Your GP can assess whether this weight poses health risks for you personally, as BMI is a screening tool and doesn't account for muscle mass or individual health factors.
What's the healthy weight range at my height if I weigh 105kg?
Use our free BMI calculator above to enter your exact height and current weight. It will show your BMI and the healthy weight range for you specifically. The NHS healthy weight range is a BMI of 18.5–24.9. For most UK adults, this means a weight between roughly 50–75kg depending on height.
Can I track weight loss from 105kg?
Yes. Our free progress tracker on this page lets you log your current weight and track changes over time. The NHS recommends losing 0.5–1kg per week for sustainable results. If you're considering weight management options, your GP can discuss approaches suited to your health and circumstances.
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.