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 Recommended Weight for a 5'4" Female?
At 5 feet 4 inches (163cm), the healthy weight range for women according to NHS guidance is approximately 48–64 kg (7 stone 8 lbs to 10 stone 1 lb). However, your ideal weight depends on several factors including age, muscle mass, ethnicity, and overall health. Rather than targeting a single number, it's more helpful to understand your healthy weight range and how it relates to your BMI. Our free BMI calculator above can help you find your personal healthy weight range instantly based on your height.
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 at 5'4" — NHS Guidelines
For women at 5'4" (163cm), the healthy BMI range is 18.5 to 24.9, which translates to a weight of approximately 48–64 kg (7st 8lbs–10st 1lb). This range is based on NHS health thresholds and represents the weight at which most women of this height have the lowest risk of weight-related health conditions.
Important ethnicity note: If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower thresholds. For these groups, a healthy BMI starts at 18.5 but reaches the overweight threshold at 23 (rather than 25), so your healthy range would be approximately 46–61 kg. Use our weight converter to check your weight in both kg and stone, then use the BMI calculator above to see where you fall on the NHS scale.
- Healthy weight range: 48–64 kg
- Overweight range: 65–78 kg (10st 3lbs–12st 4lbs)
- Obese range: 79 kg and above (12st 5lbs+)
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.
What Affects Your Individual Ideal Weight?
Your "ideal" weight is not a single number — it's a healthy range that varies based on several factors. Muscle mass is significant because muscle weighs more than fat, so athletes or very fit women may weigh more within their healthy range. Age and bone density also matter; as you age, bone density naturally decreases. Frame size (small, medium, or large bones) can account for several kilograms difference even at the same height.
Rather than chasing a specific weight, focus on health markers: energy levels, fitness improvements, how your clothes fit, and most importantly, what your GP advises. If you're concerned about your weight or health, your GP can provide personalised guidance based on your medical history. You can use our progress tracker to monitor your weight changes over time alongside other positive health changes.
- 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.
Is 5'4" considered short or average height for a woman in the UK?
At 5'4" (163cm), you're very close to the UK average female height of 5'3.5" (161.6cm). It's an average height, not short. Average male height is 5'9" (175cm), so while shorter than average men, 5'4" is perfectly typical for women in the UK.
What weight should I aim for at 5'4"?
According to NHS guidelines, a healthy weight range at 5'4" is approximately 48–64 kg (7st 8lbs–10st 1lb) for a BMI of 18.5–24.9. However, your ideal weight within this range depends on muscle mass, frame size, age, and ethnicity. Your GP can advise on your personal target. Use our BMI calculator above to see your range instantly.
Can I use an online BMI calculator if I'm 5'4"?
Yes, our free BMI calculator on this page is specifically designed for UK adults and uses your height and weight to calculate your BMI against NHS thresholds. It's a useful screening tool. However, BMI doesn't distinguish between muscle and fat, so it's just one indicator of health — your GP can provide more complete assessment.
How do I convert 5'4" to centimetres?
5 feet 4 inches equals 163 centimetres. You can use our weight converter above to switch between different units (kg, stone, lbs) to find your healthy range at this height.
What if I'm 5'4" and South Asian or of Black African heritage — does the healthy weight change?
Yes, the NHS recommends lower BMI thresholds for South Asian, Chinese, Black African, and Black Caribbean adults due to higher health risks at lower weights. For these groups at 5'4", a healthy BMI is 18.5–22.9, which is approximately 46–61 kg (7st 3lbs–9st 8lbs). Discuss your personal healthy range with your GP for tailored guidance.
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.