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
What's the Ideal Weight for Women 5'4"?
For a woman who is 5'4" (163cm) tall, the NHS healthy weight range is approximately 50–68 kg (7 stone 12 lbs to 10 stone 10 lbs). However, ideal body weight varies based on individual factors like muscle mass, frame size, and overall health rather than a single "perfect" number. This guide covers the evidence-based healthy weight range, how to calculate it, and what factors influence your personal ideal weight. Use our free BMI calculator above to determine your current position within the healthy range.
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 Range for 5'4" Women — The NHS Data
According to NHS guidelines, a healthy BMI for adults is between 18.5 and 24.9. For a woman of 5'4" (163cm), this translates to a healthy weight range of 50–68 kg (7 stone 12 lbs to 10 stone 10 lbs).
- Lower end (BMI 18.5): approximately 49 kg (7 stone 10 lbs)
- Mid-range (BMI 21.5): approximately 59 kg (9 stone 4 lbs)
- Upper end (BMI 24.9): approximately 68 kg (10 stone 10 lbs)
These figures assume average body composition. The healthy weight for height UK framework acknowledges that two people at the same weight can have very different health profiles depending on muscle mass and fat distribution. Using our weight converter, you can easily check how different weights in kg translate to stone and lbs for your reference.
Clinically BackedWeight Loss
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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.
Factors That Affect Your Individual Ideal Weight
Your personal ideal weight depends on multiple factors beyond height. Muscle mass weighs more than fat, so athletic women may weigh more while maintaining excellent health. Frame size (small, medium, large bone structure) can account for 5–10% variation in ideal weight. Age affects metabolism and muscle retention—NHS guidance recognises that healthy weight ranges apply across adulthood. Ethnicity also matters: the NHS recommends lower healthy weight thresholds for women of South Asian, Chinese, Black African, or Black Caribbean heritage due to higher metabolic disease risk at lower BMI levels. Try our healthy weight calculator to see where you fall within the range for your height and age.
- 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 average weight for a 5'4" woman in the UK?
The average UK adult woman weighs approximately 71.6 kg (11 stone 3 lbs), though this varies widely. For a woman who is 5'4", the healthy weight range according to NHS guidelines is 50–68 kg. Average weight does not equal ideal or healthy weight—individual health depends on fitness level, muscle mass, and overall wellbeing.
How do I calculate my ideal weight range for my height?
Use the NHS BMI formula: healthy weight range = BMI 18.5 to 24.9 multiplied by your height in metres squared. For 5'4" (1.63m), this gives 49–68 kg. Our free BMI calculator above instantly calculates this for you—simply enter your weight and height to see where you fall.
Is there a difference between "ideal weight" and "healthy weight"?
Yes. Healthy weight refers to a BMI-based range associated with lower disease risk (18.5–24.9). Ideal weight is more personal—it depends on your muscle mass, frame size, fitness goals, and how you feel. A healthcare professional can help you determine what's ideal for your individual health.
Does muscle mass affect what I should weigh?
Yes, significantly. Muscle is denser than fat, so two women at the same weight can look and be at very different fitness levels. BMI doesn't distinguish between muscle and fat. Your GP or a healthcare professional can assess body composition beyond BMI alone.
Should I aim for the lower or upper end of the healthy weight range?
Neither end is "better"—the healthy range reflects lower disease risk across the entire span. Where you fall depends on your frame size, muscle mass, and personal health goals. If you're concerned about your weight, your GP can provide personalised guidance tailored to your individual circumstances.
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.