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 Kg In Stones And Pounds?
105 kilograms is equal to 16 stone and 7.3 pounds. To convert kilograms to stone, divide the weight by 6.35029 — this gives you the precise stone and pounds conversion you need. Whether you're checking your weight on a UK scale, understanding NHS health guidance, or simply comparing metric to imperial weight measurements, converting between these units is straightforward. Our free weight converter above makes this instant and accurate for any weight you want to check.
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.
105 Kg To Stone Conversion Formula
The standard kg to stone conversion formula is simple: divide the weight in kilograms by 6.35029 to get the total in stones. For 105kg, this calculation gives 16.535 stone. To express this as stones and pounds, take the decimal portion (0.535) and multiply by 14 to convert the remainder to pounds: 0.535 × 14 = 7.49 lbs, giving you 16 stone 7.3 pounds.
This same method works for any weight you need to convert. You can also use the inverse calculation: if you know your weight in stone and pounds, multiply by 6.35029 to get kilograms. Use our interactive weight converter above to switch between kg, stone, and pounds instantly for any value.
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.
105 Kg BMI And Healthy Weight Context
At 105kg, your BMI depends on your height. For example, at an average UK height of 5ft 9in (1.73m), 105kg gives a BMI of approximately 35.1, which falls in the obese (Class II) category according to NHS guidelines. At 5ft 6in (1.68m), the BMI would be around 37.2. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds due to higher health risks at the same weight.
Calculate your personal BMI instantly using our free BMI calculator on this page — it accounts for your exact height and gives you NHS-aligned health context. Sustainable weight loss of 0.5–1kg per week is recommended. Even modest weight loss of 5–10% of body weight can significantly improve health outcomes including blood pressure, blood sugar, and cholesterol.
- 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 stones and pounds?
Divide 105 by 6.35029 to get 16.535 stones. Multiply the decimal (0.535) by 14 to get pounds: 7.49 lbs. Result: 16 stone 7.3 pounds. Our free weight converter above does this instantly for any weight.
What is 105kg in just stone (not pounds)?
105kg equals approximately 16.54 stone. However, in the UK, weight is typically expressed as both stones and pounds together — 16 stone 7.3 pounds — because this format is clearer and aligns with how UK bathroom scales display weight.
Is 105kg overweight or obese according to NHS guidelines?
At 105kg, BMI classification depends on your height. Generally, 105kg falls in the obese category for most adults. Use our free BMI calculator on this page to check your personal BMI and NHS health category based on your exact height.
How much weight would I need to lose from 105kg to reach a healthy weight?
A healthy BMI is 18.5–24.9 according to NHS guidelines. For a person 5ft 9in tall, a healthy weight range is around 55–75kg, meaning a loss of approximately 30kg from 105kg. Your GP can advise on safe, sustainable weight loss targets based on your individual health.
What's the difference between stone and pounds?
One stone equals exactly 14 pounds. UK weight is traditionally expressed in stones and pounds (e.g., 16 stone 7 pounds), while kilograms are the metric standard used in clinical settings. Use our weight converter to switch between these units instantly.
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.