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
72.5 kg to Stone — What's Your BMI?
72.5 kg converts to 11 stone and 5 pounds, but your BMI depends entirely on your height. Use our free BMI calculator above to find your exact BMI, or check the examples below to see what 72.5kg means for your health at different heights. We've included the NHS health category for each example so you can understand where your weight falls within the standard UK guidance.
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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.
BMI at Different Heights for 72.5 kg
Here's what 72.5 kg means in terms of BMI at six common adult heights:
- 5ft 2in (157cm): BMI 29.4 — Overweight (NHS category)
- 5ft 4in (163cm): BMI 27.2 — Overweight
- 5ft 6in (168cm): BMI 25.7 — Overweight (just above healthy range)
- 5ft 8in (173cm): BMI 24.2 — Healthy weight
- 5ft 10in (178cm): BMI 22.9 — Healthy weight
- 6ft (183cm): BMI 21.7 — Healthy weight
As you can see, 72.5kg represents very different health categories depending on height. Someone who is 5ft 2in would fall into the overweight range, whilst someone who is 6ft would be in the healthy weight range. This is why height matters so much when interpreting BMI.
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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.
Understanding NHS BMI Categories
The NHS uses five BMI categories to help assess health risk:
- Under 18.5: Underweight
- 18.5–24.9: Healthy weight
- 25.0–29.9: Overweight
- 30.0–34.9: Obese (Class I)
- 35.0+: Severely obese
Important: BMI doesn't account for muscle mass or where fat is stored. Someone very muscular might have a high BMI but low body fat. Your GP can give you personalised health advice about what your weight means for you. Track your weight journey using our free progress tracker to monitor changes over time.
- 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 72.5 kg to stone exactly?
Divide 72.5 by 6.35029. This gives 11.42 stone, or 11 stone and 5.88 pounds (often rounded to 11 stone 5 or 6 pounds). Use our free weight converter for instant conversions between kg, stone, and pounds across any weight value.
Is 72.5 kg a healthy weight?
This depends entirely on your height and body composition. At 5ft 8in, 72.5kg gives a healthy BMI of 24.2. At 5ft 2in, it gives 29.4 (overweight). Your GP can advise on what's healthy for you personally.
What's the healthy weight range for my height if I weigh 72.5 kg?
The healthy BMI range (18.5–24.9) varies by height. At 5ft 6in, healthy weight is roughly 47–63kg. At 5ft 10in, it's 53–79kg. Use the BMI calculator on this page to see your healthy range based on your exact height.
Why does height matter more than just the weight number?
BMI combines weight with height squared. The same weight is distributed differently across taller and shorter frames. A 72.5kg person who is 6ft tall carries that weight over a larger surface area, resulting in a lower BMI than someone who is 5ft 2in.
What should I do if my BMI is in the overweight category?
The NHS recommends sustainable weight loss of 0.5–1kg per week through a balanced diet and regular physical activity. Speak to your GP for personalised advice. They can discuss options including lifestyle support or, if appropriate, referral to specialist weight management services.
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.