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 and Height Chart for Women in the UK
A healthy weight depends on your height, age, and overall health — not a single number. This UK guide shows healthy weight ranges for women at different heights using NHS BMI guidelines, helping you understand whether your weight falls in a healthy range. We'll cover what the evidence says about ideal weight, how to interpret charts, and where to find personalised support from your GP. Use our free BMI calculator above to find your personal healthy weight range instantly.
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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.
NHS Healthy Weight Ranges for Women by Height
The NHS uses BMI (Body Mass Index) to define healthy weight ranges. For most women, a healthy BMI is between 18.5 and 24.9. Your healthy weight range depends on your height — taller women will have a higher healthy weight in kg or stone.
Here's what healthy weight looks like for common UK heights:
- 5ft 2in (157cm): Healthy weight range 47–63kg (7st 5lbs – 9st 13lbs)
- 5ft 4in (163cm): Healthy weight range 49–66kg (7st 10lbs – 10st 5lbs)
- 5ft 6in (168cm): Healthy weight range 52–70kg (8st 3lbs – 11st 0lbs)
- 5ft 8in (173cm): Healthy weight range 55–74kg (8st 8lbs – 11st 10lbs)
- 5ft 10in (178cm): Healthy weight range 58–79kg (9st 1lb – 12st 6lbs)
These ranges are approximate — everyone is different. For women of South Asian, Chinese, Black African, or Black Caribbean background, the NHS recommends slightly lower thresholds due to higher health risks at the same BMI.
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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 More Than You Think
Weight alone tells you nothing — a woman of 70kg could be underweight, healthy, or overweight depending on whether she's 5ft tall or 6ft tall. Height is the crucial context. That's why weight-for-height charts are far more useful than scales alone.
Beyond BMI, your GP also considers where you carry weight. Waist circumference matters: a waist above 80cm (31.5 inches) increases health risk, and above 88cm (34.5 inches) signals increased risk even at a healthy BMI. Our free weight converter helps you switch between stone, kg, and lbs easily, and use the BMI calculator on this page to find your personal healthy range based on your exact height.
- 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's the difference between healthy weight, overweight, and obese according to NHS guidelines?
The NHS categorises adults by BMI. Healthy weight is BMI 18.5–24.9. Overweight is 25.0–29.9. Obese Class I is 30.0–34.9, Class II is 35.0–39.9, and Class III (severe obesity) is 40.0+. These apply to most women; South Asian and Black African/Caribbean women have lower thresholds.
Can I use a weight and height chart if I have lots of muscle?
BMI-based charts assume average body composition and don't distinguish muscle from fat. Athletes or very muscular women may have a high BMI but low body fat. If you're very fit, discuss your results with your GP rather than relying on the chart alone.
What if my weight falls between two heights on a chart?
Use interpolation — estimate between the two nearest heights. Better yet, use our free BMI calculator on this page, which works for any exact height and gives you your precise healthy weight range in both kg and stone.
Should I aim for the bottom or top of my healthy weight range?
Both are healthy. Where you sit within the range depends on genetics, frame size, and muscle mass. Your GP can discuss what's realistic and healthy for you individually rather than targeting a specific number.
Where can I get support if I want to manage my weight?
Start with your GP, who can refer you to NHS weight management services (Tier 3). Many areas also offer digital programmes and community support. If you have excess weight with health conditions, prescription treatments may be available following a clinical assessment.
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.