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 Stones and Pounds?
105 kilograms converts to 16 stone 7.2 pounds (or 16st 7lbs). However, whether this weight is healthy depends entirely on your height. Using our free BMI calculator above, you can instantly see what BMI this weight gives you and which NHS health category you fall into. The same weight can be perfectly healthy for a tall adult but overweight for someone shorter. Let's explore what 105kg means for your health at different 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.
105kg BMI at Different Heights
To understand what 105kg means for your health, you need to calculate your BMI using both weight and height. Here's what 105 kilograms gives you at common UK heights:
- At 5ft 4in (163cm): BMI = 29.1 — overweight (NHS category)
- At 5ft 6in (168cm): BMI = 27.5 — overweight (NHS category)
- At 5ft 8in (173cm): BMI = 25.6 — overweight (NHS category)
- At 5ft 10in (178cm): BMI = 23.9 — healthy weight (NHS category)
- At 6ft 0in (183cm): BMI = 22.3 — healthy weight (NHS category)
- At 6ft 2in (188cm): BMI = 21.0 — healthy weight (NHS category)
As you can see, the same weight of 105kg in stone and pounds converts differently in health terms depending on height. Use our free weight converter to switch between kg, stone, and lbs instantly, then check your personal BMI using the calculator on this page.
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.
NHS BMI Categories and Important Limitations
The NHS defines a healthy BMI as between 18.5 and 24.9. A BMI of 25–29.9 is classed as overweight, and 30 and above is obese. However, BMI has important limitations—it doesn't distinguish between muscle and fat, so an athletic or muscular person may have a higher BMI but excellent health. BMI also doesn't account for where fat is stored; waist measurement matters too. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds due to higher cardiovascular risk at the same BMI. Always discuss your personal weight and health with your GP, who can assess your individual situation.
- 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?
105kg equals 16 stone 7.2 pounds. To convert kilograms to stone, divide by 6.35029. For pounds, multiply kilograms by 2.20462. Our free weight converter above does this instantly for any weight in metric or imperial units.
Is 105kg a healthy weight?
It depends on your height. At 5ft 10in or taller, 105kg typically falls in the healthy BMI range. At shorter heights, it may be overweight according to NHS guidelines. Use our free BMI calculator above with your height to find out your exact category.
What's my BMI if I weigh 105kg?
BMI = weight (kg) ÷ height (m)². At 5ft 8in, 105kg gives BMI 25.6 (overweight). At 6ft, BMI is 22.3 (healthy). The BMI calculator on this page works this out instantly for your height.
How much weight do I need to lose from 105kg?
That depends on your height and target BMI. For a healthy BMI of 24.9, use the weight converter and BMI calculator above to find your ideal range. Your GP can also discuss personalised targets based on your overall health.
Can I use the NHS BMI chart for 105kg?
Yes. Find 105kg on an NHS BMI chart, then trace across to your height to see your BMI category. However, remember BMI doesn't account for muscle mass, ethnicity-specific risk factors, or where fat is stored—these matter for overall health too.
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.