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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Average Weight for 5 Foot 5 Female — UK Health Context
The average weight for a 5 foot 5 inch (165 cm) female in the UK is approximately 71 kg (11 stone 2 lbs), though this varies based on age, muscle mass, and individual build. However, average weight and healthy weight are not the same thing. According to NHS guidelines, a healthy weight range at this height falls between 50 kg and 67 kg (approximately 7 stone 12 lbs to 10 stone 7 lbs), based on a healthy BMI of 18.5 to 24.9. Use our free BMI calculator above to check where your personal weight sits within the healthy weight range for your height.
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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 at 5 Foot 5 — BMI Framework
At 5 foot 5 inches tall, the healthy weight range based on BMI is approximately 50–67 kg (7 stone 12 lbs to 10 stone 7 lbs). This is calculated using the NHS healthy BMI range of 18.5 to 24.9 kg/m².
- Lower healthy threshold (BMI 18.5): 50 kg (7 stone 12 lbs) — minimum healthy weight
- Upper healthy threshold (BMI 24.9): 67 kg (10 stone 7 lbs) — maximum healthy weight before overweight category
- Overweight category (BMI 25–29.9): 68–85 kg (10 stone 8 lbs to 13 stone 5 lbs)
- Obese category (BMI 30+): above 85 kg (13 stone 5 lbs)
These ranges apply to most adult women. However, if you are of South Asian, Black African, Black Caribbean, or Chinese heritage, the NHS recommends slightly lower thresholds: a healthy BMI starts at 18.5 and healthy weight extends only to BMI 22.9, which lowers the upper healthy limit to approximately 61 kg (9 stone 8 lbs). This is because these populations have a higher risk of type 2 diabetes and heart disease at the same BMI levels.
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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.
Using the BMI Calculator for Your Personal Healthy Weight
Your ideal body weight at 5 foot 5 depends on your individual factors — muscle mass, bone density, age, and overall health — not just a single number. The healthy weight range of 50–67 kg provides a target zone, but within this range, the right weight for you is personal. Our free BMI calculator above instantly calculates your BMI based on your current weight and height, showing you whether you fall in the healthy, overweight, or obese category according to NHS standards. If you're outside the healthy range and interested in weight loss support, our GLP-1 weight loss calculator can help you explore potential outcomes with evidence-based weight management approaches. Remember, even a 5–10% reduction in body weight can bring meaningful health benefits.
- 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 difference between average weight and healthy weight for a 5 foot 5 female?
Average weight is the median weight across a population — around 71 kg for UK women at this height. Healthy weight is based on BMI science (18.5–24.9), which reflects medical health risk. The average is higher than the healthy range because many UK adults are overweight. Your healthy weight range at 5 foot 5 is approximately 50–67 kg regardless of what others weigh.
Is 70 kg a healthy weight for someone 5 foot 5?
At 70 kg and 5 foot 5, your BMI would be approximately 27, which falls in the overweight category (25–29.9). According to NHS guidance, a healthy weight at this height is below 67 kg (BMI below 25). You can check your exact BMI using our free calculator above to see your personal position and discuss health options with your GP.
How do I know my ideal weight within the healthy range?
The healthy weight range at 5 foot 5 is 50–67 kg, but your ideal weight within that range depends on factors like muscle mass, bone structure, and age. Rather than targeting one number, aim to stay within the healthy BMI range (18.5–24.9) and focus on how you feel — energy levels, fitness, and health markers matter more than a specific number.
What if I'm from a South Asian or Black African background — is my healthy weight different?
Yes. The NHS recommends lower BMI thresholds for people of South Asian, Chinese, Black African, and Black Caribbean heritage due to higher health risks at standard BMI levels. For these groups at 5 foot 5, the healthy range extends only to BMI 22.9, approximately 61 kg (9 stone 8 lbs), rather than 67 kg.
How much weight loss would be healthy to aim for from 70 kg?
From 70 kg, aiming to reach the healthy range of 50–67 kg is reasonable, though losing slowly and steadily is best. The NHS recommends losing 0.5–1 kg per week. Discuss a personalised target with your GP. Even losing 5 kg (7% of body weight) can improve blood pressure, blood sugar, and joint health.
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.