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's 106 kg in Stone and What's Your BMI?
If you weigh 106 kg, that's equivalent to 16 stone 8.3 pounds in UK measurements. However, your BMI depends entirely on your height — the same weight gives very different BMI values at different heights. Use our free BMI calculator above to find your exact BMI, or read on to see where 106 kg falls across common UK adult heights and what the NHS categories mean for your health.
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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.
106 kg BMI at Different Heights
Here's how 106 kg converts to BMI at six common UK adult heights:
- 163 cm (5ft 4in): BMI 39.9 — Obese (Class II)
- 168 cm (5ft 6in): BMI 37.6 — Obese (Class II)
- 173 cm (5ft 8in): BMI 35.5 — Obese (Class II)
- 178 cm (5ft 10in): BMI 33.5 — Obese (Class I)
- 183 cm (6ft 0in): BMI 31.7 — Obese (Class I)
- 188 cm (6ft 2in): BMI 29.9 — Overweight
These calculations use the standard formula: weight (kg) ÷ height (m)². At 106 kg, most UK adults fall into the obese range according to NHS guidelines. Your GP can discuss what this means for your individual health and whether you might benefit from support with weight management.
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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.
NHS BMI Categories and What They Mean
The NHS defines BMI categories for UK adults as: healthy weight (18.5–24.9), overweight (25–29.9), obese class I (30–34.9), obese class II (35–39.9), and severely obese (40+). At 106 kg, you're likely in the obese range depending on your height. It's important to remember that BMI is a screening tool only — it doesn't account for muscle mass, where fat is stored, or individual health factors. Your GP can assess your personal health risk and discuss whether weight management strategies, lifestyle changes, or prescription support might be appropriate 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 does 106 kg equal in stone and pounds?
106 kg equals 16 stone 8.3 pounds (or 16.6 stone). To convert kilograms to stone, divide by 6.35. You can also use our free weight converter on this page to switch between kg, stone, and lbs instantly.
Is 106 kg a healthy weight?
Whether 106 kg is healthy depends on your height and overall health. At average UK heights, 106 kg typically falls in the obese category. Your GP can assess your individual health and discuss whether weight management would benefit you.
What's my BMI at 106 kg?
Your BMI at 106 kg depends on your height. At 173 cm (5ft 8in) it's approximately 35.5 (obese); at 183 cm (6ft 0in) it's around 31.7 (obese class I); at 188 cm (6ft 2in) it's roughly 29.9 (overweight). Use our BMI calculator above for your exact height.
How much weight would I need to lose to reach a healthy BMI?
To reach a healthy BMI (below 25), the amount of weight loss depends on your height. At 173 cm, you'd need to reach approximately 75 kg; at 183 cm, around 84 kg. Your GP can discuss realistic, sustainable weight loss goals for your health.
Can I get prescription weight loss support on the NHS?
Yes, the NHS offers prescription weight loss medicines through specialist tier 3 weight management services. You'll need a referral from your GP. Eligibility typically requires a BMI of 30+ or 27+ with weight-related health conditions. Availability varies by region, and waiting lists can be long in some areas.
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.