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
Converting kilograms to stone is essential for understanding your weight in UK measurements. Whether you're checking your BMI, tracking weight loss progress, or following NHS health guidance, this conversion chart gives you instant access to accurate kg to stone conversions across the full range of adult weights. We've included NHS weight context so you can understand not just the number, but what it means for your health using our free BMI calculator and weight converter tools.
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 Chart
Here's the complete conversion chart from 50kg to 130kg in stone and pounds format. Each conversion uses the standard formula: 1 kg = 0.157473 stone, or 1 stone = 6.35029 kg.
- 50kg = 7st 12.8lbs
- 55kg = 8st 9.6lbs
- 60kg = 9st 6.4lbs
- 65kg = 10st 3.2lbs
- 70kg = 11st 0.1lbs
- 75kg = 11st 11lbs
- 80kg = 12st 8lbs
- 85kg = 13st 5lbs
- 90kg = 14st 2lbs
- 95kg = 14st 13lbs
- 100kg = 15st 10lbs
- 110kg = 17st 4lbs
- 120kg = 18st 13lbs
- 130kg = 20st 7lbs
For weights between these values, use our free weight converter tool above to calculate your exact stone and pound conversion 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.
Understanding Your Weight in UK Health Context
Knowing your weight in stone and pounds is just the first step. The NHS uses UK weight management guidelines to assess whether your weight is healthy for your height and age. According to NHS guidance, a healthy weight for UK adults falls within a BMI range of 18.5 to 24.9.
Your weight in stone and pounds, combined with your height, determines your BMI — a key health indicator. Use our free BMI calculator above to check your personal BMI instantly. If you're interested in structured weight loss support, the NHS also provides tier 1–4 weight management pathways starting with self-help tools and progressing to specialist services when needed.
- 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 quickly?
Divide your weight in kilograms by 6.35029 to get stone. Alternatively, multiply by 0.157473. For example, 70kg ÷ 6.35 = 11 stone (approximately). For more complex conversions involving pounds, use the weight converter tool on this page for instant accuracy.
What's the difference between stone and pounds?
In the UK, weight is expressed as stone and pounds together. 1 stone equals exactly 14 pounds. So if you weigh 11 stone 4 pounds, that's 11 × 14 plus 4 = 158 pounds total, or approximately 71.7kg. Our weight converter handles these conversions automatically.
Why does the NHS care about weight conversions?
The NHS uses your weight alongside your height to calculate BMI, which helps identify health risks. UK adults traditionally use stone and pounds, so NHS health guidance often references both kg and stone. Understanding your weight in both systems helps you engage with health advice more effectively.
Is there a healthy weight range I should aim for?
Yes. The NHS recommends a healthy BMI of 18.5 to 24.9 for most UK adults. For South Asian, Chinese, Black African, and Black Caribbean adults, the threshold is 18.5 to 22.9. Use our free BMI calculator to find your healthy weight range based on your height, or speak to your GP for personalised guidance.
Can I use this chart for children?
No. Adult BMI categories don't apply to children — they use age and sex-specific growth charts instead. If you need help assessing a child's weight, use the NHS Healthy Weight Calculator for children or speak to your health visitor or GP for guidance tailored to your child's age.
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.