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
Weight Conversion Chart: Kg to Stone for UK Adults
Converting kilograms to stone is essential for UK health management, as most British adults use stone and pounds to track their weight despite NHS clinical measurements being in kilograms. This comprehensive weight conversion chart provides quick, accurate conversions from 50kg to 130kg in both stone and pounds, helping you understand your weight in familiar UK measurements. Whether you're monitoring your health management or checking where you fall on NHS weight guidelines, having a clear reference makes it straightforward to track your progress and understand health recommendations.
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.
Complete Kg to Stone Conversion Reference Table
Below is a complete weight conversion chart for kg to stone covering the full range of adult weights in the UK:
- 50kg = 7 stone 12.8 lbs
- 55kg = 8 stone 9.6 lbs
- 60kg = 9 stone 6.4 lbs
- 65kg = 10 stone 3.2 lbs
- 70kg = 11 stone 0.1 lbs
- 75kg = 11 stone 11 lbs
- 80kg = 12 stone 8 lbs
- 85kg = 13 stone 5 lbs
- 90kg = 14 stone 2 lbs
- 95kg = 14 stone 13 lbs
- 100kg = 15 stone 10 lbs
- 110kg = 17 stone 4 lbs
- 120kg = 18 stone 13 lbs
- 130kg = 20 stone 7 lbs
The conversion formula is simple: divide kilograms by 6.35029 to get stone. For most UK purposes, this chart provides all the conversions you'll need for healthy weight uk monitoring and health management. Use our free weight converter tool above for any weight not listed on this chart, or to convert between kg, stone, and pounds instantly.
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.
UK Health Guidance: Where Your Weight Fits
Understanding your weight in stone helps you apply NHS guidance and UK health thresholds. According to NHS recommendations, a healthy weight for most adults is a BMI between 18.5 and 24.9. Use our bmi calculator above to check where your weight in stone places you on the health spectrum — this is far more informative than conversion alone. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, NHS guidance recommends slightly lower thresholds due to higher health risks at lower BMI levels. If you're considering weight management or have concerns about your weight category, your GP can provide personalised nhs health advice based on your individual circumstances, medical history, and lifestyle.
- 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 kg to stone myself?
Divide the kilogram weight by 6.35029 to get stone. For example, 70kg ÷ 6.35029 = 11.03 stone (approximately 11 stone 0 lbs). Alternatively, use our free weight converter tool above for instant, accurate conversions without a UK pharmacy calculation.
Is 70kg a healthy weight in the UK?
Whether 70kg is healthy depends on your height and individual health factors. Use our BMI calculator above to check your BMI using 70kg and your height — the NHS considers a BMI of 18.5 to 24.9 healthy for most adults. Your GP can advise on what's healthy for you specifically.
What's the average UK adult weight in stone?
The average UK adult man weighs approximately 85.7kg (13 stone 7 lbs), and the average UK adult woman weighs approximately 71.6kg (11 stone 3 lbs). However, average weight varies widely by height, age, and individual factors — healthy weight is best determined by BMI or GP guidance.
Can I use this chart to check my healthy weight range?
This chart helps you convert your weight to familiar stone measurements, but determining your healthy weight range requires considering your height. Use our free BMI calculator on this page to find your personal healthy weight range in both kg and stone based on your height.
Why does the NHS use kg if UK adults use stone?
The NHS uses kilograms for clinical consistency with international medicine standards and research. However, UK patients often prefer stone and pounds for everyday weight tracking. This chart bridges both systems, helping you understand NHS measurements in familiar UK units.
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.