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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Height vs Weight Chart — Find Your Healthy Weight Range
A height vs weight chart helps you understand what a healthy weight should be for your specific height, using NHS guidelines. Rather than a single "ideal" number, there's a healthy weight range determined by your height and body mass index (BMI). This UK guide explains how to use height and weight together to assess your health, and introduces you to tools that can help you calculate your personal healthy weight range instantly.
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.
How Height and Weight Work Together for Health
Height and weight are the foundation of BMI (body mass index), the most commonly used health screening tool in the UK. Your BMI is calculated by dividing your weight in kilograms by your height in metres squared. This single number helps your GP and NHS services assess whether your weight falls into a healthy range for your height.
- A healthy BMI is 18.5 to 24.9 according to NHS guidelines
- If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends checking a lower threshold: 18.5 to 22.9
- BMI does not account for muscle mass, so athletes may have a higher BMI that doesn't reflect excess fat
- Waist circumference is also important: over 94cm (37 inches) for men or 80cm (31.5 inches) for women indicates increased health risk
Use our free BMI calculator above to find your personal BMI based on your height and weight instantly.
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.
Using a Height vs Weight Chart in Practice
A height vs weight chart shows the healthy weight range for each height. For example, at 5ft 8in (173cm), the healthy weight range is approximately 55.4kg to 74.5kg (8st 10lbs to 11st 10lbs). However, the exact healthy range depends on your individual body composition, age, and health conditions.
Rather than aiming for a single number on a chart, work with your GP to find your healthy weight range. Your GP can consider factors like your current health, family history, and any weight-related conditions. Our weight converter helps you switch between kg, stone, and pounds so you can compare any weight to standard UK measurements.
- 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 a healthy weight for my height?
Your healthy weight range depends on your height and BMI. For adults, a BMI of 18.5–24.9 is considered healthy. Use the BMI calculator on this page to find your personal healthy range based on your exact height and current weight. For South Asian or Black African heritage, lower thresholds apply (18.5–22.9). Your GP can provide personalised guidance.
How do I convert my weight to see if it matches a height vs weight chart?
Use our free weight converter to switch between kg, stone, and pounds. If a chart shows weight in kilograms but you think in stone and pounds, convert your weight instantly. This makes it easy to compare your weight against any UK health chart or guidance you find.
Is a height vs weight chart the same as a BMI chart?
Not exactly. A BMI chart shows weight ranges based on height that correspond to different BMI categories (healthy, overweight, obese). A height vs weight chart may be visual but serves the same purpose. Both use height and weight together. BMI is the NHS standard, but charts can help you visualise the healthy range for your height.
What if I'm above the healthy weight range on a height vs weight chart?
Being above the healthy weight range may increase health risks, but it depends on many factors including fitness, muscle mass, and existing health conditions. Speak to your GP about weight management options. Even losing 5–10% of body weight can bring significant health benefits. Your GP can discuss sustainable approaches tailored to you.
Can I use a height vs weight chart if I'm very muscular or athletic?
Height vs weight charts and BMI have limitations for muscular people because they don't distinguish between muscle and fat. If you're athletic, your BMI may be higher but your body composition healthier. Waist circumference is a better indicator for you. Discuss your personal health with your GP rather than relying on a chart alone.
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.