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 is 5'4.5" in Centimetres?
5 feet 4.5 inches converts to approximately 163.8 centimetres. This is a common height for UK adults and falls just below the average height for adult women in the UK (around 161.6 cm). Whether you're checking your height for a health appointment, using NHS weight guidance, or calculating your BMI, understanding your height in centimetres helps you access accurate NHS health information and use health calculators effectively. Our free weight converter and BMI calculator on this page let you work with both imperial and metric measurements instantly.
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.
Height Conversion: 5'4.5" to cm Explained
5 feet 4.5 inches = 163.8 centimetres (cm)
To convert feet and inches to centimetres, use this formula: multiply total inches by 2.54. In this case: (5 × 12) + 4.5 = 64.5 inches, then 64.5 × 2.54 = 163.83 cm.
- 5 feet = 152.4 cm
- 4.5 inches = 11.43 cm
- Total = 163.83 cm (rounded to 163.8 cm)
This height is slightly below the UK average for adult women and aligns with the natural variation in UK adult heights. If you're using this height for NHS health calculations, BMI assessment, or general health guidance, our free BMI calculator above provides personalised results instantly using metric measurements.
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.
Using Your Height for BMI and Weight Management
At 5'4.5" (163.8 cm), your healthy weight range according to NHS guidance is approximately 49.6–66.4 kg (7st 11lbs to 10st 5lbs), based on a BMI range of 18.5 to 24.9. If your current weight falls outside this range, our BMI calculator will show your personal BMI category and context. Understanding your height in centimetres is essential for accessing NHS weight management guidance, calculating healthy weight ranges, and tracking progress with consistent measurements. Use the weight converter on this page to switch between metric and imperial units as needed.
- 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.
How do I convert feet and inches to centimetres?
Multiply total inches by 2.54. First convert feet to inches (feet × 12), add any additional inches, then multiply by 2.54. For example: 5'4.5" = 64.5 inches × 2.54 = 163.83 cm. Our weight converter above does this instantly.
What is the average height for UK adults at 5'4.5"?
At 163.8 cm, you're slightly below the UK average for adult women (161.6 cm) and well below the average for adult men (175.3 cm). Height varies naturally across the population and is influenced by genetics and other factors.
How do I calculate my BMI using this height?
BMI = weight (kg) ÷ height (m)². At 163.8 cm (1.638 m), a healthy BMI range is 18.5–24.9, giving a healthy weight of approximately 49.6–66.4 kg. Use our free BMI calculator above for gradual improvement.
Is 5'4.5" considered short, average, or tall for a UK woman?
5'4.5" (163.8 cm) is close to average for UK women (average 161.6 cm). It falls within the normal range and is neither considered short nor tall. Height variation is natural and healthy.
Can I use this height measurement for NHS health assessments?
Yes. Recording your height in centimetres is standard for NHS measurements and health calculations. Always use the same measurement method (e.g., measured without shoes, against a wall) for consistency when tracking health changes or calculating BMI.
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.