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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What's the Ideal Weight for a 5'5" Woman?
For a woman who is 5 feet 5 inches (165 cm) tall, the ideal body weight according to NHS BMI guidelines falls within a specific healthy weight range. Rather than a single "ideal" number, health professionals recommend aiming for a BMI between 18.5 and 24.9, which translates to approximately 47.6 to 64.0 kg (7 stone 6 lbs to 10 stone 1 lb) for your height. This range supports good health outcomes and reduces the risk of weight-related conditions. Use our free BMI calculator above to check where you fall within this framework and understand what a healthy weight 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 Range for 5'5" — Based on NHS BMI
The NHS healthy weight range for a 5'5" woman is 47.6 to 64.0 kg, which converts to 7 stone 6 lbs to 10 stone 1 lb in imperial measurements. This range corresponds to a BMI of 18.5 to 24.9, the standard used across UK healthcare. However, BMI is a screening tool with limitations — it doesn't account for muscle mass, bone density, or where fat is distributed on your body.
Your actual ideal weight within this range depends on factors including:
- Muscle mass and fitness level (athletes may be at the upper range)
- Frame size (small, medium, or large-boned)
- Age and metabolic health
- Medical history and any existing health conditions
- Ethnicity (some groups face different health risks at the same BMI)
For a personalised healthy weight recommendation tailored to your health profile, consult your GP. The weight for height UK guidelines suggest this range as a starting point, but individual circumstances vary significantly.
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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.
How to Find Your Personal Ideal Weight
Start by calculating your current BMI using our healthy weight calculator above — this gives you an objective baseline. If your BMI is outside the 18.5–24.9 range, you'll see how much weight loss or gain would move you into the healthy category. Remember that the NHS recommends losing weight gradually at approximately 0.5 to 1 kg per week for sustainable results.
Beyond BMI, consider your waist circumference — for women, a waist below 80 cm (31.5 inches) is considered healthy. You can also discuss body composition with your GP; they can assess whether your current weight is appropriate for your individual health, regardless of what a chart says. Weight is just one part of overall health.
- 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 average UK weight for a 5'5" woman?
The average UK adult woman weighs approximately 71.6 kg (11 stone 3 lbs), though this varies widely. The NHS healthy weight range for a 5'5" woman is 47.6–64.0 kg. "Average" doesn't mean "healthy" — focus on your personal healthy weight range and how you feel.
Is 60 kg a healthy weight for a 5'5" woman?
Yes, 60 kg (9 stone 6 lbs) falls within the healthy weight range for a 5'5" woman, giving a BMI of approximately 22.9. However, whether it's ideal for you depends on your muscle mass, frame size, and overall health. Your GP can advise if this weight is appropriate for your individual circumstances.
How do I know if I'm in a healthy weight range?
Calculate your BMI using our free BMI calculator — a BMI between 18.5 and 24.9 is considered healthy by NHS standards. Check your waist circumference (below 80 cm is ideal for women) and consider how you feel — energy levels, mobility, and fitness matter more than the scale alone.
Should I aim for the bottom or top of the healthy weight range?
Neither is universally "better." The healthy range acknowledges that different body types are healthy at different weights. If you have significant muscle mass from exercise, you might healthily sit in the middle or upper range. Discuss your personal target with your GP based on your health profile, not appearance.
Does the healthy weight range differ for different ethnic backgrounds?
Yes. The NHS recommends lower BMI thresholds for people of South Asian, Chinese, Black African, or Black Caribbean heritage — a healthy BMI for these groups starts at 18.5 but extends only to 22.9 instead of 24.9. Speak with your GP about appropriate thresholds for your background.
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.