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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Healthy Weight for Women by Height — UK Reference Guide
Finding your healthy weight depends on your height, age, and body composition. This UK health guide shows typical weight ranges for women at different heights based on NHS guidelines and BMI categories. Rather than aiming for a single "ideal" weight, the NHS recommends focusing on a healthy BMI range of 18.5 to 24.9. For South Asian, Chinese, Black African, or Black Caribbean women, slightly lower thresholds apply. Your GP can help you determine what healthy weight management means for your individual circumstances.
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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.
Healthy Weight Ranges for Women by Height
Height determines the healthy weight range for any individual. Using NHS guidelines, here are approximate healthy weight ranges (BMI 18.5–24.9) for women at common heights:
- 5ft 0in (152cm): 47–64 kg (7st 6lb–10st 1lb)
- 5ft 2in (157cm): 50–67 kg (7st 12lb–10st 8lb)
- 5ft 4in (163cm): 53–72 kg (8st 5lb–11st 5lb)
- 5ft 6in (168cm): 56–75 kg (8st 12lb–11st 11lb)
- 5ft 8in (173cm): 59–79 kg (9st 4lb–12st 6lb)
- 5ft 10in (178cm): 62–84 kg (9st 11lb–13st 3lb)
- 6ft 0in (183cm): 66–89 kg (10st 6lb–14st 0lb)
These ranges are calculated using the BMI formula (weight in kg ÷ height in metres²). Individual healthy weight varies based on muscle mass, bone density, age, and genetics. Our free weight converter above lets you switch between kg, stone, and pounds instantly. Calculate your personal BMI using our free BMI calculator to see where you sit within the healthy range for your height.
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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 Weight Ranges Matter for Health
A healthy weight range isn't about appearance — it's about reducing health risks. Women carrying excess weight face increased risk of type 2 diabetes, heart disease, high blood pressure, and certain cancers. The NHS emphasises that even a 5–10% reduction in body weight can significantly improve blood pressure, blood sugar control, and cholesterol levels.
Weight management is personal. Your GP or a registered dietitian can assess whether you're in a healthy range for your circumstances and discuss whether weight loss might benefit your health. If you're considering structured weight loss support, evidence-based approaches include calorie-controlled eating (around 500 kcal deficit for ~0.5 kg/week loss), increased physical activity, and behaviour change strategies. Prescription weight loss treatments may be appropriate if you have a BMI of 30 or above, or 27–29.9 with weight-related health conditions. Track your progress using our free progress tracker to monitor changes 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 considered a healthy weight for women in the UK?
The NHS defines healthy weight as a BMI between 18.5 and 24.9. For women of South Asian, Chinese, Black African, or Black Caribbean heritage, the healthy range is 18.5–22.9 due to higher health risks at higher BMI levels. Healthy weight varies by height, age, and individual factors — your GP can give personalised guidance.
How do I calculate if I'm at a healthy weight for my height?
Use your height and weight to calculate your BMI: weight (kg) ÷ height (m)². Our free BMI calculator above does this instantly and shows you the NHS category. You can also use our weight converter to switch between kg and stone if needed.
Is BMI accurate for assessing weight health in women?
BMI is a useful screening tool but has limitations. It doesn't distinguish muscle from fat — athletic women may have a higher BMI but lower body fat. BMI also doesn't account for where fat is stored or age-related muscle loss. Your GP can assess your overall health beyond BMI alone.
What should I do if my weight is outside the healthy range?
If you're overweight or obese, discuss weight management with your GP. Safe weight loss is around 0.5–1 kg per week. Your GP may refer you to a weight management service, recommend lifestyle changes, or discuss prescription treatments if appropriate after clinical assessment.
How much weight should women aim to lose per week?
The NHS recommends losing 0.5–1 kg (1–2 lbs) per week for sustainable results. This typically requires a calorie deficit of about 500 kcal per day. Faster weight loss is possible with medical support but increases the risk of muscle loss and nutritional deficiency.
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.