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 15 Stone in Kilograms?
15 stone is equivalent to 95.3 kg (or 210.2 lbs). This conversion uses the standard UK to metric conversion formula where 1 stone equals 6.35029 kg. Understanding your weight across different measurements is helpful when using NHS health guidance, consulting with your GP, or tracking progress with UK health information resources. Use our free weight converter above to switch between stone, kilograms, and pounds instantly for any weight value.
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.
15 Stone — BMI and Health Context
At 15 stone (95.3 kg), your BMI depends on your height. For example, at a height of 5ft 8in (173 cm), a weight of 15 stone gives a BMI of approximately 30.2, which falls into the obese category according to NHS guidelines. At 5ft 10in (178 cm), the same weight results in a BMI of around 28.4, which is overweight. Use our free BMI calculator on this page to check your personal BMI based on your exact height and weight. A BMI of 25–29.9 is classed as overweight, whilst 30 or above is obese (Class I). Remember that BMI is a screening tool but has limitations — it does not distinguish between muscle and fat, and ethnicity affects health risk at the same BMI level.
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.
Healthy Weight and Next Steps
If you are currently 15 stone and wish to reach a healthy weight range, your GP or NHS weight management services can provide personalised guidance. For many adults, a healthy BMI falls between 18.5 and 24.9. Sustainable weight loss typically occurs at a rate of 0.5–1 kg per week alongside dietary changes and increased physical activity. If you have weight-related health conditions such as type 2 diabetes, high blood pressure, or sleep apnoea, your GP may discuss weight management options including lifestyle support or, where appropriate, prescription weight loss treatments. Track your progress using our free progress tracker to monitor changes over time.
- 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 is 15 stone in kilograms?
15 stone equals 95.3 kg. To convert stone to kg, multiply the stone value by 6.35029. Use our weight converter tool above to instantly switch between stone, kg, and pounds for any weight.
Is 15 stone overweight or obese?
It depends on your height. At 5ft 8in, 15 stone gives a BMI of approximately 30.2 (obese). At 5ft 10in, it's around 28.4 (overweight). Calculate your exact BMI using our free calculator above based on your height and weight.
What is a healthy weight for my height?
A healthy BMI is 18.5–24.9 according to NHS guidelines. For South Asian, Chinese, Black African, or Black Caribbean adults, healthier thresholds are lower (18.5–22.9). Your GP can advise on a healthy weight range for your specific height and health background.
How much weight would I need to lose from 15 stone to reach a healthy BMI?
This depends on your height. At 5ft 8in, you would need to lose approximately 12–16 kg (1st 13lbs to 2st 8lbs) to reach the lower end of healthy weight. Your GP or a weight management service can give personalised targets based on your health.
Can prescription weight loss medications help if I'm 15 stone?
Possibly. If you are 15 stone (95.3 kg) with a BMI of 30 or above, or 27–29.9 with weight-related health conditions, you may be eligible for prescription weight loss treatment. This requires a clinical assessment from a prescriber or GP. Our GLP-1 weight loss calculator can help you explore potential outcomes with evidence-based weight management approaches.
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.