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 9.7 Kg in Stone?
9.7 kilograms is equivalent to 1 stone and 8.2 pounds (1st 8.2lbs). To convert kilograms to stone, divide by 6.35029. This weight is typically associated with infants, young children, or small pets rather than adults. If you're tracking weight for health purposes, use our free weight converter above to switch between kg, stone, and pounds instantly. For adults, understanding your weight in relation to your height and BMI is more meaningful than the absolute number alone.
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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.
Kg to Stone Conversion Chart
Here's a quick reference table showing how 9.7 kg compares to nearby weights when converting kilograms to stone:
- 9.0 kg = 1st 6.4lbs
- 9.2 kg = 1st 7.1lbs
- 9.5 kg = 1st 8.0lbs
- 9.7 kg = 1st 8.2lbs
- 10.0 kg = 1st 9.2lbs
- 10.2 kg = 1st 10.0lbs
- 10.5 kg = 1st 10.9lbs
The conversion formula is straightforward: divide kilograms by 6.35029 to get stone. Alternatively, multiply kilograms by 2.20462 to get pounds, then divide by 14 to convert to stone and pounds. Our free weight converter above handles these calculations instantly for any weight.
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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.
Context for This Weight in Adults
At 9.7 kg, this weight is not typical for adult humans—it represents a newborn infant or very young child. For adults, healthy weight depends on height. For example, an adult of average UK height (around 170 cm) would have a BMI of over 33 at this weight, which falls into the obese category according to NHS guidelines. Use our free BMI calculator above to determine your personal BMI and healthy weight range based on your specific height. Weight management is most effective when guided by a GP or healthcare professional, especially if you're concerned about your health.
- 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 9.7 kg to stone and pounds?
Divide 9.7 by 6.35029 to get stone (1.53 stone = 1 stone and 0.53 × 14 = 7.4 pounds, approximately 1st 8.2lbs). You can also multiply 9.7 by 2.20462 to get 21.4 pounds, then divide by 14 for the stone equivalent. Our weight converter above does this automatically.
Is 9.7 kg a healthy weight for an adult?
At 9.7 kg, this weight is not typical for adults and would indicate severe underweight for any adult regardless of height. Adult health depends on BMI, which factors in both weight and height. Use our free BMI calculator to check your personal BMI and discuss healthy weight targets with your GP.
What is the kilogram to stone conversion formula?
The standard formula is: kilograms ÷ 6.35029 = stone. For 9.7 kg: 9.7 ÷ 6.35029 = 1.53 stone (1 stone 8.2 pounds). This conversion is exact and works for any weight value.
How many stone and pounds is 9.7 kg?
9.7 kg equals 1 stone and 8.2 pounds. In decimal form, that's approximately 1.53 stone. The weight converter tool on this page converts between all UK and metric measurements instantly.
Why does weight matter for health?
Weight in relation to height (measured as BMI) helps identify health risks. However, BMI is just one screening tool—muscle mass, where fat is stored, and overall fitness also matter. Your GP can give personalised health guidance based on your complete health picture, not just weight alone.
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.