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 5ft Female?
The ideal weight range for a 5ft (152cm) female according to NHS guidelines is approximately 47–63 kg (7st 6lbs–9st 13lbs). This range is based on achieving a healthy BMI of 18.5 to 24.9. However, ideal weight varies based on individual factors like muscle mass, frame size, and ethnicity. Use our free BMI calculator above to find your personal healthy weight range at your exact height, and our weight converter to switch between kg, stone, and pounds.
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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 5ft Females — Formula and Context
The healthy weight range for a 5ft (152cm) height is calculated using the NHS BMI formula. A BMI of 18.5 equals approximately 47kg (7st 6lbs), and a BMI of 24.9 equals approximately 63kg (9st 13lbs). For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, lower BMI thresholds apply — the healthy range would be BMI 18.5 to 22.9, which gives approximately 47–55kg (7st 6lbs–8st 9lbs).
The formula used is: BMI = weight (kg) ÷ height (m)². At 152cm (1.52m), this means: weight in kg ÷ 2.31 = BMI. Important note: BMI does not distinguish between muscle and fat, so two women at the same height and weight may have different body compositions. Your GP can provide personalised guidance about what healthy weight means for your individual health profile.
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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.
Ideal Weight Across Similar Heights — Reference Table
If you're not exactly 5ft tall, this table shows the healthy weight range for nearby heights using the standard healthy BMI range (18.5–24.9):
- 4ft 10in (147cm): 45–60kg (7st 1lbs–9st 6lbs)
- 4ft 11in (150cm): 46–61kg (7st 3lbs–9st 8lbs)
- 5ft 0in (152cm): 47–63kg (7st 6lbs–9st 13lbs)
- 5ft 1in (155cm): 49–65kg (7st 10lbs–10st 3lbs)
- 5ft 2in (157cm): 51–68kg (8st 0lbs–10st 10lbs)
These ranges are approximate and individual ideal weight also depends on muscle mass and frame size. Our free weight converter makes it easy to switch between different UK measurements (kg, stone, and pounds).
- 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 5ft the average height for a UK female?
No. The average UK female height is approximately 5ft 3.5in (161cm). At 5ft (152cm), you're shorter than average but within the normal healthy range. Height varies widely in the UK population due to genetics and ethnicity. Health is not determined by height alone — what matters is maintaining a healthy weight for your individual height, which you can check using our free BMI calculator.
What's the difference between ideal weight and healthy weight?
"Healthy weight" refers to a weight range that reduces health risks based on BMI and medical evidence (18.5–24.9). "Ideal weight" is more personal and varies by frame size, muscle mass, and individual factors. The NHS uses healthy weight ranges rather than a single "ideal" number. Your GP can advise what healthy weight means for your specific circumstances, including any existing health conditions.
Does ideal weight change with age or ethnicity?
Age doesn't change the BMI formula itself, but older adults may have different health contexts due to muscle loss. Ethnicity does matter — the NHS recommends lower BMI thresholds for South Asian, Chinese, Black African, and Black Caribbean adults because these groups face higher health risks at lower BMI levels. Speak to your GP about thresholds relevant to your background.
How do I check if I'm in the healthy weight range for 5ft?
Use our free BMI calculator above, which works instantly for any height and weight combination. Enter 5ft (or 152cm) and your current weight in kg or stone, and it will show whether you're in the healthy, overweight, or obese range. You can also use our weight converter to switch between measurements. If you have questions about your result, your GP can provide personalised advice.
What if I have a lot of muscle — does ideal weight still apply?
BMI has a key limitation: it doesn't distinguish between muscle and fat. An athlete may have a high BMI but low body fat, while someone with a normal BMI might carry excess fat. If you're very muscular, your GP or a healthcare professional can assess your health using additional measures like waist circumference and body composition, rather than relying on weight alone.
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.