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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Weight Chart in Stones and Pounds — NHS Reference Guide
A weight chart in stones and pounds helps you understand where your weight sits against NHS health guidelines. The NHS provides clear healthy weight ranges for UK adults, measured in both kilograms and imperial units. This guide explains what these charts mean, how to use them, and how they connect to your overall health. Whether you're checking your current weight or planning a weight management journey, knowing the NHS standards for your height is an important first step towards informed health decisions.
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.
NHS Healthy Weight Ranges — The Official Standards
The NHS defines a healthy weight range based on BMI (Body Mass Index), which accounts for both your weight and height. For most UK adults, a healthy BMI sits between 18.5 and 24.9. This translates to different weight ranges depending on how tall you are.
For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends slightly lower thresholds due to higher health risks at lower BMI levels — a healthy BMI for these groups starts at 18.5 and extends to 22.9.
- Underweight: BMI below 18.5
- Healthy weight: BMI 18.5–24.9
- Overweight: BMI 25.0–29.9
- Obese (Class I): BMI 30.0–34.9
- Obese (Class II): BMI 35.0–39.9
- Severely obese (Class III): BMI 40.0 and above
Use our free BMI calculator above to find your personal BMI instantly, then cross-reference this chart to understand what it means for your health.
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.
Weight Chart Examples — Common Heights in Stones and Pounds
Here's how healthy weight ranges translate for common UK heights, expressed in stones and pounds:
- 5ft 4in (163cm): Healthy weight range is approximately 8st 4lbs to 10st 7lbs (53–67 kg)
- 5ft 6in (168cm): Healthy weight range is approximately 8st 13lbs to 11st 6lbs (56–73 kg)
- 5ft 8in (173cm): Healthy weight range is approximately 9st 9lbs to 12st 4lbs (61–78 kg)
- 5ft 10in (178cm): Healthy weight range is approximately 10st 5lbs to 13st 2lbs (65–84 kg)
These ranges are based on NHS guidance. Your GP can provide personalised advice about what a healthy weight means for you specifically, especially if you have existing health conditions. Try our free weight converter to switch between stones, pounds, and kilograms as you explore your healthy 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.
What does the NHS weight chart tell me?
The NHS weight chart shows healthy weight ranges based on your height and BMI. It helps you understand whether your current weight falls into a healthy range according to NHS guidelines. Your chart also shows overweight and obese categories, which carry increased health risks. Use this information as a starting point for conversations with your GP about your personal health.
Is the NHS weight chart different for different ethnic backgrounds?
Yes. The NHS recommends lower BMI thresholds for people of South Asian, Chinese, Black African, and Black Caribbean backgrounds because these groups face higher risks of type 2 diabetes and heart disease at lower BMI levels. A healthy BMI for these groups is 18.5–22.9, compared to 18.5–24.9 for other populations.
How do I convert my weight to stones and pounds using the chart?
Most NHS weight charts show weights in both kilograms and stones/pounds side by side. If your chart doesn't, use our free weight converter above to switch between units instantly. Multiply kilograms by 0.157473 to get stone, or multiply by 2.20462 to get pounds.
What should I do if my weight is outside the healthy range on the NHS chart?
If your weight is outside the healthy range, talk to your GP. They can assess your individual health, discuss what a healthy weight means for you, and recommend appropriate next steps — which might include lifestyle changes, referral to weight management services, or other personalised support.
Can I use an NHS weight chart if I'm pregnant or have a medical condition?
Standard NHS weight charts don't apply during pregnancy — a GP or midwife will provide pregnancy-specific guidance. Similarly, if you have conditions like muscle-building disorders, heart disease, or other health issues, your GP should give you personalised weight guidance rather than relying on a standard 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.