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
75.5 Kg In Stone — BMI Guide For UK Adults
At 75.5 kg, your weight in stone is approximately 11 stone 12 pounds. However, whether this weight is healthy depends entirely on your height. BMI is the standard way UK adults assess weight health using the NHS-recommended thresholds. Use our free BMI calculator above to find your exact BMI instantly, or read on to see what 75.5 kg means across different heights and how it compares to NHS guidelines.
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.
What BMI Does 75.5 Kg Give At Different Heights?
A weight of 75.5 kg produces different BMI values depending on your height. Here's what this weight means across common UK heights:
- At 5ft 3in (160cm): BMI of 30.1 — falls into the obese category (Class I)
- At 5ft 6in (168cm): BMI of 26.8 — falls into the overweight category
- At 5ft 9in (175cm): BMI of 24.6 — falls into the healthy weight range
- At 5ft 11in (180cm): BMI of 23.3 — falls into the healthy weight range
- At 6ft 0in (183cm): BMI of 22.6 — falls into the healthy weight range
These examples show how the same weight of 75.5 kg converts to very different health categories depending on your height. Taller individuals have lower BMIs at the same weight. The NHS recommends a healthy BMI between 18.5 and 24.9 for most adults.
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.
NHS BMI Categories And What They Mean
The NHS divides BMI into clear categories to help you understand your weight health. A healthy BMI falls between 18.5 and 24.9, meaning your weight poses minimal health risk. If your BMI is 25.0–29.9, you're in the overweight category — this increases risk of type 2 diabetes and heart disease. A BMI of 30.0–34.9 is classified as obese (Class I), and 35.0–39.9 is obese (Class II). Anything above 40 is severely obese (Class III).
Important: BMI doesn't account for muscle mass or where fat is stored. Athletes may have high BMI with low body fat. Your GP can provide personalised advice about what your BMI means for your individual health. If you're concerned about your weight, a conversation with your GP is always the best starting point.
- 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 75.5 kg to stone and pounds?
Divide 75.5 by 6.35 to get stone, then multiply the decimal by 14 to get pounds. 75.5 kg equals approximately 11 stone and 12 pounds. Our free weight converter above lets you convert between kg, stone, and pounds instantly without doing the maths yourself.
Is 75.5 kg a healthy weight?
It depends on your height. At 5ft 9in, 75.5 kg gives a BMI of 24.6, which is healthy. At 5ft 3in, the same weight gives a BMI of 30.1, which falls into the obese category. Use our BMI calculator above to check your personal BMI and health category based on your height.
What does overweight mean on the NHS BMI chart?
The NHS classifies a BMI of 25.0–29.9 as overweight. This range indicates increased risk of type 2 diabetes, heart disease, and high blood pressure. Being in the overweight category doesn't mean you're ill, but it suggests discussing weight management with your GP if you have other health concerns.
Why does height matter so much for BMI?
BMI is calculated using both weight and height because taller people naturally weigh more while remaining healthy. The formula divides weight by height squared, meaning a small increase in height significantly reduces BMI at the same weight. This is why two people weighing 75.5 kg can have very different health outcomes based on their height.
Should I lose weight if my BMI is 75.5 kg?
Weight loss decisions depend on your personal BMI, health conditions, and GP advice — not on weight alone. If your BMI falls into the healthy range, you likely don't need to lose weight. If it's overweight or obese, your GP can discuss options including lifestyle changes, diet support, or in some cases, weight management medication.
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.