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 Does a BMI of 26.0 Mean? NHS Guidance
A BMI of 26.0 places you in the overweight category according to NHS guidelines. This means your weight is above the healthy range for your height, but understanding what this means for your individual health is important. The NHS recommends a healthy BMI between 18.5 and 24.9, so at 26.0 you're just above this threshold. However, BMI is a screening tool and doesn't account for factors like muscle mass or where fat is distributed. Use our free BMI calculator above to confirm your personal BMI and explore what it means for your health context.
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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.
NHS BMI Categories and What They Mean
According to NHS guidelines, BMI categories help healthcare professionals identify weight-related health risks. A BMI of 26.0 falls into the overweight category (25.0–29.9), which sits between the healthy weight range and obesity. The NHS BMI range breakdown is: underweight (below 18.5), healthy weight (18.5–24.9), overweight (25.0–29.9), obese Class I (30.0–34.9), obese Class II (35.0–39.9), and severely obese (40.0+).
For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds due to higher health risks at the same weight. These groups should aim for a BMI below 22.9 for optimal health.
It's important to note that BMI has limitations. The BMI formula doesn't distinguish between muscle and fat, so athletic individuals or those with significant muscle mass may have a higher BMI without increased health risk. Waist circumference and overall fitness level are also important health markers that your GP can discuss with you.
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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 Weight Management Support and When to Seek Help
If you have a BMI of 26.0 and want to improve your health, the NHS offers free support through their weight management pathway. You can start with free digital tools, community weight loss programmes, or speak with your GP about your individual situation. Your GP may refer you to specialist weight management services (Tier 3) if you have weight-related health conditions like type 2 diabetes, high blood pressure, or sleep apnoea.
The NHS recommends losing weight at a steady rate of 0.5–1 kg per week through a combination of reduced-calorie diet and increased physical activity. For personalised advice based on your health, speak with your GP or use our free weight converter and progress tracker to monitor your journey as you work towards the healthy BMI range.
- 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 a BMI of 26.0 considered overweight in the UK?
Yes. According to NHS guidelines, a BMI of 26.0 falls in the overweight category (25.0–29.9). The NHS healthy BMI range is 18.5–24.9. While being overweight doesn't automatically mean you have health problems, it's worth discussing your individual situation with your GP, especially if you have weight-related health conditions.
What is the healthy BMI range according to the NHS?
The NHS healthy BMI range is 18.5 to 24.9 for most adults. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends a healthy BMI of 18.5 to 22.9 due to higher health risks at higher BMI levels. Your GP can advise on what's right for your personal health.
How do I work out my healthy weight range at my height?
Use our free BMI calculator on this page to find your healthy weight range instantly. Alternatively, multiply your height in metres squared by 18.5 (lower bound) and 24.9 (upper bound). For example, at 1.73m, the healthy range is roughly 55–74 kg. Your GP can also help determine what's healthy for you individually.
What should I do if my BMI is 26.0?
Start by speaking with your GP, who can assess your individual health and discuss whether weight management would benefit you. The NHS offers free support including digital tools, community programmes, and specialist services. Aim for gradual weight loss (0.5–1 kg per week) through diet and activity changes. Our progress tracker can help you monitor your journey.
Does BMI tell the whole story about my health?
No. BMI is a useful screening tool but has limitations. It doesn't account for muscle mass, bone density, or where fat is stored. Waist circumference and overall fitness are also important. Your GP can assess your complete health picture, not just your BMI, and discuss whether any action is needed.
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.