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 Stone 5 in Kilograms?
9 stone 5 pounds equals 59.87 kg using the standard UK to metric conversion. This weight falls into the healthy weight range for many UK adults, though what constitutes a healthy weight depends on your height, age, and individual health factors. The NHS recommends using BMI alongside other health measures to understand whether your weight is appropriate for your health. Use our free weight converter above to check conversions between stone, pounds, and kilograms instantly, and our BMI calculator to see how your weight relates to your height.
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.
How Does 59.87 kg Compare to NHS Health Guidance?
According to NHS guidance, a healthy weight depends on your height rather than a fixed number. At 59.87 kg (9st 5), whether you're in a healthy range depends entirely on how tall you are. For example, a woman of 5ft 4in (163cm) at this weight would have a BMI of approximately 22.5 — well within the healthy range of 18.5–24.9. However, a shorter adult might have a higher BMI at the same weight, while a taller adult would have a lower one.
BMI remains a useful screening tool, though it has important limitations. It doesn't distinguish between muscle and fat, and doesn't account for where fat is stored — waist circumference is also an important health indicator. The NHS recommends aiming for a waist circumference under 94cm (37 inches) for men and under 80cm (31.5 inches) for women to reduce health risks.
- Healthy BMI range: 18.5–24.9 (18.5–22.9 for South Asian, Chinese, Black African, or Black Caribbean adults)
- Overweight range: 25.0–29.9
- Even modest weight changes can improve health outcomes
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.
Using UK Tools to Check Your Weight and Health
If you're at 9 stone 5 and want to understand whether this is healthy for you personally, the best starting point is to calculate your BMI using your height. Our free BMI calculator on this page gives instant feedback on where you fall within NHS categories. You can also use our weight converter to switch between stone, pounds, and kilograms as needed for any health information you're reviewing.
If you have concerns about your weight or health, your GP is the best resource for personalised advice. They can assess your individual circumstances, including medical history and any weight-related health conditions. The NHS also offers free weight management support through various programmes depending on your area.
- 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 9 stone 5 a healthy weight?
Whether 9st 5 (59.87 kg) is healthy depends on your height. Use our BMI calculator above with your height to find out instantly. If your BMI falls between 18.5–24.9, it's within the healthy range according to NHS guidelines. For South Asian, Chinese, Black African, or Black Caribbean adults, the healthy range is 18.5–22.9. Your GP can provide personalised advice.
How do I convert 9 stone 5 to kilograms?
9 stone 5 pounds = 59.87 kg. To calculate: (9 × 6.35029) + (5 × 0.453592) = 59.87 kg. Our weight converter tool above allows you to convert between stone, pounds, and kilograms instantly without doing the maths yourself.
What does the NHS say about healthy weight?
The NHS recommends a healthy BMI between 18.5–24.9 for most adults (18.5–22.9 for South Asian, Chinese, Black African, or Black Caribbean adults). Healthy weight depends on your height, not a fixed number. Waist circumference also matters: under 94cm for men and 80cm for women is recommended to reduce health risks.
How can I track my weight if I'm managing it?
Our free progress tracker allows you to log your weight over time and see trends. Tracking helps you stay motivated and gives you data to share with your GP if needed. Regular monitoring every 1–2 weeks is typically recommended, though your GP can advise on the best approach for you.
Should I see my GP about my weight?
If you have concerns about whether your weight is healthy for you, or if you want support with weight management, your GP is an excellent first step. They can assess your individual health, discuss any weight-related conditions, and signpost you to NHS weight management services available in your area.
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.