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 A Normal Weight For A Woman 5'6"?
For a woman who is 5'6" (168 cm) tall, the healthy weight range according to NHS guidelines is approximately 50.8–68.5 kg, or 8 stone to 10 stone 10 lbs. This range represents a BMI between 18.5 and 24.9, which is classified as healthy weight. However, ideal body weight varies based on individual factors including muscle mass, frame size, and age. Using our free weight converter and BMI calculator, you can check where your personal weight sits within the healthy range for your height and understand what it means for your overall health.
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.
Healthy Weight Range For 5'6" Women — The Data
Healthy weight range for a woman 5'6" (168 cm):
- Lower bound: 50.8 kg (8 stone 0 lbs)
- Upper bound: 68.5 kg (10 stone 10 lbs)
- BMI range: 18.5–24.9 (healthy weight category)
These figures are based on NHS healthy weight thresholds and apply to the general adult population. The range is calculated using the standard BMI formula: BMI = weight (kg) ÷ height (m)². For a woman of 5'6", maintaining a weight within this band typically corresponds to a healthy BMI. However, this is a general guideline. If you have South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends slightly lower thresholds — a healthy BMI range of 18.5–22.9. Use our free BMI calculator above to check your personal BMI and see exactly where your weight falls.
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.
Factors Affecting Ideal Weight For Your Height
The "ideal" weight for any woman is not one fixed number. Several factors influence what is healthy for you personally: muscle mass (muscle is denser than fat, so athletes may weigh more at the same height and still be healthy), frame size (small-framed women may naturally fall toward the lower end of the range, while larger-framed women toward the upper end), age (metabolic rate changes with age, and body composition shifts), and ethnicity (certain populations have different health risk profiles at the same BMI). Rather than focusing on a single "ideal" figure, the healthy weight range gives you flexibility. Your GP can provide personalised guidance based on your individual health context. Try the weight converter on this page to understand how your current weight translates to stone and kilograms.
- 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 is the average weight for UK women aged 25–34?
According to UK Office for National Statistics (ONS) data, the average weight for UK women aged 25–34 is approximately 71.6 kg (11 stone 3 lbs). However, average is not the same as healthy — many women above and below this figure are in good health. Your healthy weight range depends on your height, not population averages.
Is 5'6" considered tall for a woman?
No, 5'6" (168 cm) is slightly above average for UK women, whose average height is around 5'3" (161 cm). However, height classifications vary. Your weight for your height is what matters for health, not whether you're considered tall.
How much should I weigh if I'm 5'6" and have a large frame?
If you have a large frame, you may naturally fall toward the upper end of the healthy weight range (65–68.5 kg or 10 stone 3–10 lbs) while maintaining a healthy BMI. Frame size is individual and subjective — use the NHS healthy weight range as your primary guide, and discuss your personal target with your GP.
Can I use a healthy weight calculator to find my ideal weight?
Yes. Our free healthy weight calculator and BMI calculator can help you determine the healthy weight range for your height and see your current BMI. These tools use NHS guidelines. However, they are screening tools — they don't account for muscle mass, frame size, or medical history. Always consult your GP for personalised advice.
Why is the healthy weight range different for different ethnicities?
Research shows that certain ethnic groups — South Asian, Chinese, Black African, and Black Caribbean populations — face higher risks of type 2 diabetes, heart disease, and other conditions at the same BMI level as white European populations. The NHS therefore recommends slightly lower BMI thresholds (18.5–22.9 instead of 18.5–24.9) for these groups.
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.