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 for a 5'5" Female?
At 5'5" (165 cm), a healthy weight range for an adult woman in the UK is approximately 50–67 kg (7 stone 12 lbs to 10 stone 7 lbs), according to NHS guidelines. However, your ideal weight depends on several factors including age, muscle mass, and overall health. Rather than focusing on a single number, the NHS recommends using BMI as a screening tool alongside waist circumference and general fitness. Use our free BMI calculator above to find your personal healthy weight range based on your height and current weight.
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.
UK BMI Categories and Healthy Weight Range for 5'5"
For women of 5'5" (165 cm), the NHS defines a healthy BMI as 18.5 to 24.9. This translates to a weight range of approximately 50–67 kg (7 stone 12 lbs to 10 stone 7 lbs). A BMI of 25 to 29.9 falls into the overweight category, while 30 and above is classed as obese. However, BMI has important limitations — it does not account for muscle mass, bone density, or where fat is stored on your body. Women of South Asian, Chinese, Black African, or Black Caribbean heritage should use adjusted thresholds: a healthy range is 18.5 to 22.9, which at 5'5" is approximately 50–61 kg. Waist circumference also matters: the NHS recommends women aim for less than 80 cm (31.5 inches) for reduced health risk. Your GP can provide personalised guidance based on your individual health profile.
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 the Weight Converter and Health Tools
Converting between kg, stone, and pounds can be confusing — our free weight converter makes it instant and accurate. If you weigh 60 kg, for example, that's 9 stone 6 lbs. To understand what your weight means for your health, use our BMI calculator which gives you your personal BMI category and healthy weight range based on your exact height. You can also track changes over time using our progress tracker, which helps you monitor sustainable weight management. Remember, a modest weight loss of even 5–10% of your body weight can bring meaningful health benefits. If you're concerned about your weight or have specific health conditions, book an appointment with your GP for personalised advice.
- 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 weight should a 5'5" woman aim for?
According to NHS guidance, a healthy BMI for a 5'5" woman is 18.5 to 24.9, which corresponds to approximately 50–67 kg (7 stone 12 lbs to 10 stone 7 lbs). However, ideal weight varies based on age, muscle mass, and individual health. Your GP can advise you on a target weight that's right for you.
Is 60 kg a healthy weight for a 5'5" female?
At 60 kg, a 5'5" woman has a BMI of approximately 22, which falls in the healthy weight range (18.5–24.9) according to NHS guidelines. This is a healthy weight for your height, though individual health depends on many factors beyond weight alone.
Does ethnicity affect healthy weight ranges for 5'5" women?
Yes. The NHS recommends lower BMI thresholds for women of South Asian, Chinese, Black African, or Black Caribbean heritage due to higher health risks at lower BMI levels. For these groups at 5'5", a healthy range is approximately 50–61 kg (BMI 18.5–22.9) rather than the standard 50–67 kg.
What if I'm overweight at 5'5" — what should I do?
If your BMI is 25 or above, the NHS recommends a combination of dietary changes and increased physical activity. A calorie deficit of around 500 kcal per day typically results in sustainable weight loss of 0.5–1 kg per week. Contact your GP for personalised advice, or explore NHS weight management programmes in your area.
Should I focus only on weight, or are there other health measures?
Weight is just one measure. The NHS also recommends monitoring waist circumference (ideally under 80 cm for women) and overall fitness. BMI doesn't account for muscle mass, so you might be healthy at a higher weight if you're physically active. Your GP can assess your overall health holistically.
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.