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 Many Kg Is 12 Stone?
12 stone is equal to 76.2 kilograms. This is a straightforward weight conversion using the standard UK to metric formula: one stone weighs exactly 6.35029 kg. If you need to convert this weight into other units or understand what this means for your health, our free weight converter above can help you switch between stone, pounds, and kilograms instantly. Understanding your weight in both metric and imperial measurements is useful for health appointments, fitness tracking, and comparing your weight against NHS health guidance.
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.
Converting 12 Stone to Kilograms
To convert 12 stone to kilograms, you multiply the stone measurement by 6.35029. So 12 × 6.35029 = 76.2 kg (rounded to one decimal place). The exact figure is 76.20348 kg, but in everyday health contexts, 76.2 kg is the standard figure used.
This conversion applies equally to all adults — the stone-to-kilogram ratio is fixed and does not change based on age, sex, or health status. If you have additional pounds alongside the stone measurement (for example, 12 stone 5 pounds), you would add those separately: 12 stone = 76.2 kg, plus 5 pounds = 2.3 kg, giving you a total of approximately 78.5 kg.
- 12 stone = 76.2 kg
- 12 stone 7 pounds = 79.4 kg
- 12 stone 14 pounds = 82.6 kg
Use our free weight converter on this page to convert any stone and pound combination to kilograms 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.
What Does 12 Stone Mean for Health?
Whether 12 stone (76.2 kg) is a healthy weight depends entirely on your height. According to NHS guidance, a healthy weight range is indicated by a BMI between 18.5 and 24.9. For example, if you are 5 feet 8 inches (173 cm) tall, 12 stone gives you a BMI of approximately 27.4, which falls into the overweight category. If you are taller — say 6 feet (183 cm) — the same weight gives a BMI of about 22.7, which is within the healthy range.
Our free BMI calculator above will instantly show you whether 12 stone is a healthy weight for your height, and it will tell you what your healthy weight range should be according to NHS standards. You can also track your weight progress over time using our free progress tracker, which helps you monitor changes in your weight management journey.
- 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.
Is 12 stone a healthy weight?
Whether 12 stone (76.2 kg) is healthy depends on your height and other factors. Use the BMI calculator on this page to check your personal BMI. According to NHS guidance, a healthy BMI is 18.5–24.9. If you have health concerns about your weight, speak to your GP for personalised advice.
How do I convert 12 stone to other measurements?
12 stone = 76.2 kg = 168 pounds. You can convert between any of these units using the free weight converter on this page. Simply enter your weight in one unit and it converts instantly to stone, kilograms, and pounds.
What is the exact conversion from stone to kilograms?
One stone equals exactly 6.35029 kilograms. To convert any stone weight to kg, multiply by 6.35029. So 12 stone × 6.35029 = 76.2 kg (rounded). This standard conversion is used by the NHS and health professionals across the UK.
Why do UK health services use both stone and kilograms?
The NHS uses kilograms for clinical measurements and calculations, but many UK adults are more familiar with stone and pounds for everyday use. Both measurements are valid — the important thing is understanding your weight in the unit you're comfortable with and knowing your BMI for health context.
Where does 12 stone fall on the BMI scale?
The BMI calculation depends on your height alongside your weight. At 12 stone (76.2 kg), you could have a BMI ranging from about 21 to 28 depending on whether you are 5 feet tall or 6 feet 2 inches tall. Use our free BMI calculator above to check your exact BMI 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.