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 16 Stone in Kilograms?
16 stone is equal to 101.6 kilograms. This conversion uses the standard UK measurement formula where 1 stone equals 6.35029 kg. In the UK, weight is commonly expressed in stone and pounds, while clinical NHS assessments typically use kilograms. Understanding your weight across both measurement systems helps when reading health guidance, consulting your GP, or using UK health information resources. Use our free weight converter above to switch between stone, pounds, and kilograms instantly.
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.
NHS Weight Categories and Health Context
At 101.6 kg, it's helpful to understand where this weight sits within NHS health guidance. According to NHS standards, a healthy BMI falls between 18.5 and 24.9. For an adult of average height (around 5ft 8in or 173cm), 16 stone represents a BMI in the overweight or obese category, depending on individual height. However, BMI has limitations — it doesn't account for muscle mass, age, or where fat is stored. 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 weight. Your GP can provide personalised NHS health advice about what this weight means for your individual health profile and whether any interventions might be recommended.
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.
Using the BMI Calculator and Next Steps
To get a clear picture of your health status at 16 stone, use our free BMI calculator on this page — it takes just your height and weight to show your personal BMI category. If you're concerned about your weight or want weight management support, your GP is the best starting point. The NHS offers a tiered approach to weight management, from self-help digital tools like those offered through NHS services, to specialist weight management programmes in your area. You can also track your progress over time using our free progress tracker, which helps you see improvements in weight, measurements, or how you feel.
- 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 16 stone to kilograms?
Multiply the number of stone by 6.35029. So 16 × 6.35029 = 101.6 kg. You can also use our free weight converter above for instant conversions between stone, pounds, and kilograms without a UK pharmacy calculation.
What is a healthy weight at my height?
A healthy weight depends on your height and individual factors like age, muscle mass, and genetics. Use our BMI calculator on this page to enter your height and weight — it will show your BMI category according to NHS guidelines. Your GP can discuss what a healthy weight range looks like for you personally.
Is 16 stone overweight according to NHS guidance?
At 16 stone (101.6kg), whether you're classified as overweight, obese, or healthy depends on your height. A person who is 5ft 8in tall would likely fall into the obese category at this weight, while someone taller might be in the overweight range. Use the BMI calculator to check your specific BMI category based on your height.
What should I do if I'm concerned about my weight?
Start by speaking with your GP, who can assess your individual health and discuss whether weight management support would be beneficial. The NHS offers various weight management resources through tier 1 and tier 2 services. Your GP can also refer you to specialist weight management services if appropriate for your situation.
Can I use stone and kg measurements interchangeably?
Yes — they measure the same thing (body weight) in different units. The UK commonly uses stone for personal weight discussions, while the NHS and most healthcare settings use kilograms. Both are equally valid; it's simply about context and preference. Our weight converter helps you switch between measurements 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.