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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Heights Compared — UK Health Context
Comparing heights helps you understand where your measurement fits within the UK population, and how height affects your health metrics like BMI and healthy weight range. Height is one of the most important factors in assessing healthy weight according to NHS guidance. Whether you're tracking your own health or simply curious about how different heights relate to body weight and BMI, understanding height conversions and their health implications is essential for making informed decisions about weight management.
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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.
How UK Heights Compare and What They Mean for Health
UK adults vary significantly in height, with average measurements showing men at approximately 175cm (5ft 9in) and women at approximately 162cm (5ft 4in). Height directly affects your healthy weight range — taller individuals naturally have higher healthy weight thresholds according to NHS BMI guidelines. A person who is 5ft 6in (168cm) will have a different healthy weight range than someone who is 5ft 10in (178cm), even if their BMI category is the same.
When assessing whether your weight is healthy, NHS guidance emphasises that height is crucial. Your healthy weight range is calculated using your height and weight together through BMI (Body Mass Index). For example, at 5ft 8in (173cm), a healthy weight range is approximately 55–74kg (8st 9lbs to 11st 8lbs). At 6ft 0in (183cm), the healthy range rises to approximately 64–85kg (10st 1lbs to 13st 5lbs). Using our free weight converter and BMI calculator above, you can find your personal healthy weight range based on your exact height in either metric or imperial measurements.
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.
Height Conversions and NHS Health Resources
Converting between centimetres, feet, and inches is straightforward but essential for using NHS health tools effectively. Common UK height conversions include: 160cm (5ft 3in), 170cm (5ft 7in), 175cm (5ft 9in), 180cm (5ft 11in), and 190cm (6ft 3in). Many UK health calculators accept both metric (cm) and imperial (feet and inches) measurements, making it easy to track your health data in whichever format you prefer.
Your GP can provide personalised UK health guidance tailored to your height and individual circumstances. If you're concerned about whether your weight is healthy for your height, or if you're considering weight management options including prescription treatments like Mounjaro or Wegovy, your GP is the best starting point. They can assess your BMI in context of your health history and discuss any weight-related health conditions. Try the BMI calculator on this page to see where you currently fall on NHS BMI guidelines.
- 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.
What is the average height of UK adults?
According to Office for National Statistics data, the average UK adult man is approximately 175cm (5ft 9in) and the average UK adult woman is approximately 162cm (5ft 4in). Individual heights vary widely, and these are population averages. Your personal height is what matters for calculating your healthy weight range using NHS BMI guidelines.
How does height affect healthy weight according to NHS guidance?
Height is fundamental to NHS BMI calculations. Your healthy weight range depends entirely on your height — taller people have higher healthy weight ranges than shorter people. Using the BMI formula (weight in kg ÷ height in metres squared), the NHS classifies healthy BMI as 18.5–24.9. Calculate your personal healthy weight range using our free BMI calculator above.
How do I convert my height from centimetres to feet and inches?
Divide centimetres by 30.48 to get feet as a decimal, then multiply the decimal portion by 12 for inches. Example: 175cm ÷ 30.48 = 5.74 feet = 5ft 9in. Alternatively, use our free weight converter tool on this page, which handles all height conversions instantly between metric and imperial formats.
Does my height change as I get older?
Yes, UK adults typically lose approximately 1cm of height per decade after age 30, mainly due to natural spinal changes. This means your healthy weight range may shift slightly with age. Your GP can advise on how age-related height changes might affect your health assessment and any weight management decisions.
Can I use height comparison to assess if I'm overweight?
Height alone cannot determine if you're overweight — you need both height and weight together to calculate BMI, which is the NHS standard screening tool. Two people of identical height can have very different body compositions. Always use your height with your weight in a BMI calculator to get an accurate assessment of whether your weight is healthy for your height.
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.