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 107kg in Stone?
107 kilograms is equivalent to 16 stone and 12.3 pounds in UK measurements. This weight falls into the overweight category according to NHS guidelines for most adults. Understanding your weight in familiar UK units helps you track your health more effectively. Whether you're monitoring your weight for personal reasons or following NHS health guidance, knowing how to convert between metric and imperial measurements is useful. Use our free weight converter to switch between kg, stone, and pounds instantly, and our BMI calculator to understand what your weight means for your individual health.
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.
How Does 107kg Compare to UK Health Guidelines?
At 107kg, your weight depends entirely on your height and body composition. For example, at an average UK adult height of 1.73m (5ft 8in), a weight of 107kg would give a BMI of approximately 35.8, which falls into the obese category (Class II) according to NHS guidelines. However, if you are taller—say 1.83m (6ft)—the same weight would give a BMI of around 31.9, still in the obese range but Class I. The NHS defines a healthy BMI for most adults as 18.5 to 24.9. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower thresholds, with the overweight category starting at BMI 23.0. BMI is a useful screening tool, but it has important limitations—it does not distinguish between muscle and fat, so athletes or very muscular individuals may have a higher BMI without excess body fat.
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.
Taking Action: NHS Resources and Next Steps
If you are concerned about your weight, your GP can provide personalised guidance based on your health history, medications, and individual circumstances. The NHS offers several pathways to support weight management, from free tools and digital programmes (tier 1) through to specialist weight management services (tier 3) where prescription medications may be considered if clinically appropriate. Calculate your personal BMI using our free BMI calculator above to see where you fall on the NHS scale. The NHS Weight Loss Plan is a free resource offering evidence-based advice on sustainable dietary changes and physical activity. Remember that weight loss of even 5–10% can bring meaningful health benefits. Speak to your GP about what approach is right 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.
Is 107kg overweight or obese according to NHS guidelines?
It depends on your height. At average UK adult height (1.73m), 107kg gives a BMI of around 35.8, which is Class II obesity. At 1.83m, it would be around 31.9, Class I obesity. Use our BMI calculator to find your personal BMI and where you fall on the NHS scale.
What is the healthy weight range for my height if I weigh 107kg?
The healthy weight range varies by height. At 1.73m, healthy weight is approximately 55–74kg. At 1.83m, it's around 62–83kg. Your GP can advise on a realistic, healthy target for your individual circumstances and can discuss any weight management support available through the NHS.
How can I convert 107kg to stone and pounds accurately?
To convert kg to stone, divide by 6.35029. For 107kg: divide by 6.35029 to get 16.85 stone, which is 16 stone 12 pounds. Use our free weight converter on this page for instant, accurate conversions between kg, stone, and pounds.
What does a weight of 107kg mean for my health?
Weight alone does not determine health. Your BMI, waist circumference, fitness level, and family medical history all matter. At 107kg, if your BMI is in the obese range, your GP may discuss weight management options including lifestyle changes and, in some cases, prescription support through NHS specialist services.
Where can I find NHS support for weight management?
Start by speaking to your GP about weight management. The NHS offers free tier 1 resources including the NHS Weight Loss Plan and digital tools. Your GP can refer you to tier 2 or tier 3 specialist services if appropriate. MyWeightCheck provides free BMI and weight loss calculators to help you track your health information.
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.