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
Weight Chart by Height — Find Your Healthy Range
A weight chart as per height shows the healthy weight range for your specific height using NHS guidelines. Rather than a single "ideal" weight, the NHS recognises that healthy weight varies based on your height, age, and body composition. This guide provides UK measurements in stone, kilograms, and pounds, helping you understand where your weight sits relative to NHS health thresholds. Use our free BMI calculator above to check your personal BMI instantly, and reference this chart to see whether your current weight falls within the healthy range for your height.
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.
Healthy Weight Ranges by Height (UK Measurements)
The NHS defines healthy weight using BMI (body mass index), with a healthy range of 18.5 to 24.9 for most UK adults. This translates to different weight ranges depending on your height. For example:
- At 5ft 4in (163cm): healthy weight range is approximately 7st 11lbs to 10st 3lbs (50–65 kg)
- At 5ft 8in (173cm): healthy weight range is approximately 8st 10lbs to 11st 10lbs (55–75 kg)
- At 5ft 10in (178cm): healthy weight range is approximately 9st 2lbs to 12st 4lbs (58–79 kg)
For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower thresholds due to higher health risks at the same BMI level. These groups should aim for a BMI of 18.5 to 22.9. Our free weight converter and BMI calculator help you find your exact healthy weight range in your preferred UK measurements.
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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.
Why Height Matters for Weight Management
Height is a crucial factor in weight management because taller people naturally weigh more while maintaining the same body composition as shorter individuals. Two people with identical body fat percentages could have very different weights simply due to height differences. This is why BMI accounts for both weight and height, rather than using a single target weight for everyone. Beyond BMI, your waist circumference is equally important — the NHS recommends keeping waist measurement under 94cm (37 inches) for men and 80cm (31.5 inches) for women. Track your progress using our free progress tracker, which records weight changes alongside your health markers 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.
What is the healthy weight range for someone 5ft 6in tall?
At 5ft 6in (168cm), the healthy weight range is approximately 8st 2lbs to 11st 0lbs (52–70 kg) for most UK adults. Use our BMI calculator to check your exact healthy range, as it varies slightly based on individual health factors.
How accurate is a weight chart compared to BMI?
Weight charts based on BMI are useful screening tools but have limitations — they don't distinguish between muscle and fat, so athletes may have a high BMI despite low body fat. Your GP can provide personalised guidance on what your weight means for your health.
Do weight ranges differ for men and women?
No — the NHS BMI categories and healthy weight ranges are the same for men and women at the same height. However, body composition and fat distribution differ between sexes, so your GP may discuss your individual health context.
What if my weight is above the healthy range?
Even modest weight loss of 5–10% can improve health markers. The NHS recommends losing no more than 0.5–1 kg per week for sustainable results. Your GP can discuss appropriate weight management options, including lifestyle changes or prescription support.
Are these weight ranges the same as my ideal weight?
No — the healthy weight range is broader than a single "ideal" weight. Your actual healthy weight within that range depends on your age, muscle mass, bone density, and overall health. Work with your GP to set personalised health goals.
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.