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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5.11 Feet in Centimetres — Quick Conversion
5.11 feet (5 feet 11 inches) is equal to approximately 180 centimetres. This is a common height measurement for UK adults and falls slightly above the average height for men in Britain. Whether you're checking your height for health assessments, clothing sizes, or BMI calculations, understanding how to convert feet to centimetres is useful for UK health contexts. Use our free weight converter and BMI calculator to explore what a healthy weight range is for your height.
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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.
Height Conversion: Feet and Inches to Centimetres
5.11 feet = 180 centimetres (cm)
To convert feet and inches to centimetres, use this formula: (feet × 30.48) + (inches × 2.54) = cm. For 5 feet 11 inches: (5 × 30.48) + (11 × 2.54) = 152.4 + 27.94 = 180.34 cm, which rounds to 180 cm.
This conversion works across all heights. One foot equals exactly 30.48 cm, and one inch equals exactly 2.54 cm. Heights are often recorded in centimetres in medical settings and on NHS documents, whilst many UK adults still use feet and inches for everyday reference.
- 5ft 9in: 175 cm
- 5ft 10in: 178 cm
- 5ft 11in: 180 cm
- 6ft 0in: 183 cm
- 6ft 1in: 185 cm
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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.
Healthy Weight Range at 5ft 11in Height
At 180 cm (5ft 11in), the healthy weight range for UK adults falls between approximately 59.7 kg and 80.6 kg (9 stone 5 lbs to 12 stone 9 lbs), based on a BMI of 18.5 to 24.9. This means a person of your height with a BMI in the healthy range weighs within this bracket. Our free BMI calculator can help you determine where your current weight sits and whether it falls within the healthy zone for your height. Keep in mind that healthy weight also depends on factors like muscle mass, bone density, and individual health conditions — BMI is a useful screening tool but has limitations.
- 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 5ft 11in in centimetres?
5 feet 11 inches equals 180 centimetres. Use the formula: (5 × 30.48) + (11 × 2.54) = 180.34 cm, which rounds to 180 cm. This is a straightforward conversion using the exact values of 30.48 cm per foot and 2.54 cm per inch.
How do I convert feet to cm?
Multiply the number of feet by 30.48. For inches, multiply by 2.54. Then add both results together. For example, 5ft 11in: (5 × 30.48) + (11 × 2.54) = 180.34 cm. This formula works for any height conversion between imperial and metric units.
Is 5ft 11in a tall height in the UK?
Yes, 5ft 11in (180 cm) is slightly above average for UK men, whose average height is approximately 5ft 9in (175 cm). It's considered a healthy, above-average height. This height may vary in terms of how tall it appears depending on posture and individual frame size.
What is a healthy weight for someone 5ft 11in tall?
According to NHS guidelines, a healthy weight range at 180 cm is approximately 59.7–80.6 kg (9st 5lbs–12st 9lbs), based on a BMI of 18.5–24.9. However, healthy weight varies by individual factors including muscle mass and health conditions. Use our BMI calculator for personalised guidance.
How do I use height in centimetres for BMI calculations?
BMI is calculated as weight (kg) ÷ height (m)². Convert your height to metres first: 180 cm = 1.80 m. Then divide your weight in kg by 1.80 squared (3.24). Our free BMI calculator handles this automatically — just enter your height and weight in your preferred units.
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.