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 a Healthy Weight at 5ft 2?
If you're 5ft 2 (157cm) tall, your healthy weight range according to NHS guidance is approximately 47–63 kg (7st 5lbs–9st 13lbs). This range is based on a healthy BMI of 18.5 to 24.9, which applies to most UK adults. Your individual healthy weight depends on factors like muscle mass, bone density, and overall health — so it's always worth discussing your personal targets with your GP rather than aiming for a single number.
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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 5ft 2 — NHS Guidelines
At 5ft 2 (157cm), the healthy BMI range of 18.5–24.9 translates to a weight of approximately 47–63 kg (7st 5lbs–9st 13lbs). This is based on standard NHS guidance for adults.
However, if you're of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends a slightly lower healthy BMI threshold of 18.5–22.9, which would equate to approximately 47–57 kg (7st 5lbs–8st 13lbs) at your height. This is because these populations face higher health risks from type 2 diabetes and cardiovascular disease at lower BMI levels.
You can calculate your personal BMI instantly using our free BMI calculator above — simply enter your weight and height, and it will show you exactly where you fall on the NHS scale. Remember, BMI is a screening tool and doesn't account for muscle mass or where fat is stored, so your GP can give you more personalised guidance.
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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.
Weight Management & UK Health Resources
The NHS recommends losing weight at a sustainable rate of 0.5–1 kg per week, achieved through a combination of dietary changes and increased physical activity. Our free weight converter allows you to switch between kg, stone, and pounds easily, so you can track your progress in whichever unit feels most natural to you.
If you're concerned about your weight or health, your GP is the best starting point. They can assess your individual circumstances, check for underlying health conditions, and refer you to specialist weight management services (tier 3) if appropriate. Many areas now offer NHS-funded weight management programmes — availability varies by region, but it's worth asking your GP about what's available locally.
- 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 my healthy weight at 5ft 2?
At 5ft 2, a healthy BMI range of 18.5–24.9 equates to approximately 47–63 kg (7st 5lbs–9st 13lbs). If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends aiming for 47–57 kg (18.5–22.9 BMI). Use our BMI calculator above to find your personal BMI instantly.
How do I convert 5ft 2 to centimetres?
5ft 2 equals 157 centimetres. You can use our weight converter tool to switch between feet and inches, centimetres, kilograms, stone, and pounds — helpful when comparing NHS guidance (which uses cm and kg) with your own measurements.
Is BMI accurate at 5ft 2?
BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat, so athletes may have a high BMI despite low body fat. It also doesn't account for where fat is stored. Your GP can give you a full health assessment beyond just BMI.
What's the average weight for a 5ft 2 woman in the UK?
The UK average adult woman weighs approximately 71.6 kg (11st 3lbs), though heights vary. At 5ft 2, you're slightly below average UK height, so your healthy weight range would be on the lower side of national averages. Individual healthy weight depends on many factors.
Can I use the NHS weight loss calculator at 5ft 2?
Yes. The NHS Weight Loss Plan and our GLP-1 weight loss calculator can both be used at any height. Our calculator helps estimate potential weight loss with lifestyle changes or GLP-1 medication. Your GP can also refer you to specialist NHS weight management services if appropriate.
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.