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
How To Convert Kg Into Stones And Pounds
Converting kilograms to stones and pounds is straightforward using a simple formula, and it's essential for understanding your weight in UK health measurements. Whether you're checking your BMI, discussing health goals with your GP, or following NHS health guidance, knowing how to convert between metric and imperial units helps you engage with health information more confidently. This guide explains the exact conversion, provides quick reference tables, and shows you how weight relates to healthy weight ranges under NHS standards.
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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.
The Conversion Formula And Quick Reference
To convert kilograms to stones and pounds, use this formula: divide the kilogram value by 6.35029 to get stones. For example, 70kg ÷ 6.35029 = 11.03 stone (which equals 11 stone 0.4 pounds). Alternatively, multiply kilograms by 2.20462 to convert directly to pounds: 70kg × 2.20462 = 154.3 lbs.
- 1 kilogram = 0.157473 stone or 2.20462 pounds
- 1 stone = 6.35029 kilograms or exactly 14 pounds
- 1 pound = 0.453592 kilograms
Use our free weight converter above to instantly switch between kg, stone, and pounds. This is particularly useful when checking your weight against NHS health benchmarks, which often use kilograms clinically but are commonly discussed in stone and pounds by UK patients.
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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.
Common Weight Conversions For UK Health Context
Here are some everyday weight conversions in UK measurements: 60kg equals 9 stone 6 pounds, 75kg equals 11 stone 11 pounds, and 90kg equals 14 stone 2 pounds. These conversions matter because your weight influences your BMI (body mass index), which is calculated the same way regardless of units but is interpreted using NHS guidelines. A weight of 70kg at a height of 1.73m (5ft 8in) gives a BMI of approximately 23.4, which falls in the healthy weight range of 18.5–24.9 according to NHS standards. Calculate your personal BMI using our free BMI calculator above to see how your weight relates to healthy weight ranges for your height.
- 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 the easiest way to convert 80kg to stones and pounds?
Divide 80 by 6.35029 to get 12.6 stone. This converts to 12 stone 8 pounds (approximately). Our weight converter tool above does this instantly — simply enter 80kg and select stone as your target unit for an exact answer.
Why do UK adults use stones and pounds instead of kilograms?
Historically, imperial measurements have been standard in the UK for body weight. While the NHS uses kilograms for clinical records, most UK patients relate to their weight in stone and pounds. Understanding both units is helpful when discussing health with your GP or reviewing NHS health guidance that may reference either measurement system.
Is my weight healthy according to NHS guidance?
Use our free BMI calculator above to enter your weight in kilograms (or convert using our weight converter) and your height. The calculator will show you your BMI and tell you whether it falls in the healthy range (18.5–24.9) according to NHS standards. Your GP can also discuss what a healthy weight means for your individual health.
How does weight affect BMI and health risk?
BMI is calculated from your weight and height to screen for health risks. A higher BMI (above 25) is associated with increased risk of type 2 diabetes, heart disease, and certain cancers. Even small reductions in weight — as little as 5–10% of body weight — can meaningfully improve health markers and reduce these risks, as NHS guidance confirms.
Can I use stone and pounds for weight loss tracking?
Yes. You can track your weight in stone and pounds, though converting to kilograms can sometimes show progress more clearly (smaller increments are visible). Our free progress tracker tool allows you to log your weight in either unit and monitor your journey over time, making it easy to see trends and celebrate milestones in your preferred measurement system.
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.