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
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75.5 Kg in Stones and Pounds — Health Context Guide
75.5 kg is equivalent to 11 stone 12.3 pounds (or 11st 12lbs for short). Whether this weight is healthy depends entirely on your height, age, and body composition. For some adults, 75.5kg falls comfortably within a healthy weight range; for others, it may indicate being overweight. This guide shows you how to assess your personal weight using NHS guidelines, including healthy weight ranges for different heights and simple steps you can take if you're concerned about your health.
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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.
Healthy Weight Ranges at Different Heights
75.5 kg can be healthy or overweight depending on height. The NHS uses BMI (body mass index) to assess whether a weight falls within a healthy range, though BMI has limitations — it doesn't account for muscle mass or where fat is stored.
Here are three real examples showing how height changes the picture:
- At 5ft 4in (163cm): 75.5kg gives a BMI of 32.5 (obese category). Healthy weight range: 47–64kg (7st 5lbs to 10st 1lb).
- At 5ft 9in (175cm): 75.5kg gives a BMI of 25.4 (overweight, just above healthy). Healthy weight range: 55–76kg (8st 8lbs to 12st 0lbs).
- At 6ft 0in (183cm): 75.5kg gives a BMI of 22.6 (healthy weight). Healthy weight range: 60–83kg (9st 6lbs to 13st 1lb).
Use our free BMI calculator above to check your personal BMI instantly based on your exact height and 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.
NHS Guidance and Next Steps
The NHS recommends a healthy BMI between 18.5 and 24.9 for most adults. If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, lower thresholds apply (18.5–22.9), as these groups face higher health risks at the same BMI level.
Beyond BMI: Waist measurement also matters. Men with waist circumference over 102cm (40in) and women over 88cm (35in) have increased health risks, regardless of BMI. If you're concerned about your weight or health, speak to your GP — they can provide personalised advice based on your individual circumstances and any underlying health conditions.
- 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 kilos to stone myself?
The formula is simple: divide kilograms by 6.35. So 75.5kg ÷ 6.35 = 11.9 stone. To express this as stones and pounds, multiply the decimal (0.9) by 14: 0.9 × 14 = 12.6 pounds. So 75.5kg = 11 stone 12.6 pounds. Our weight converter above does this instantly.
Is 75.5 kg overweight for everyone?
No. Whether 75.5kg is overweight depends on your height. At 5ft 9in it's slightly overweight; at 6ft it's healthy; at 5ft 4in it's obese according to BMI. Height makes a significant difference. Use the BMI calculator on this page to check your personal BMI.
What should I do if my weight is outside the healthy range?
If your BMI is consistently above 25, consider speaking to your GP. They can assess your individual health, discuss any underlying conditions, and suggest safe, sustainable approaches — whether that's dietary changes, physical activity, or other support. Don't aim for gradual weight management; the NHS recommends 0.5–1kg per week.
Does BMI tell the whole story about health?
BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat, so athletes may have high BMI but low body fat. Waist measurement and overall fitness also matter. Your GP can give you a complete picture of your health beyond BMI alone.
What's the stone to kg conversion for healthy weight ranges?
To convert stone to kg, multiply by 6.35. For example, 10st = 63.5kg, and 12st = 76.2kg. The healthy BMI range (18.5–24.9) corresponds to different kg values depending on height. Use our weight converter to switch between metric and imperial measurements 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.