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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71.5 Inches in Centimetres — UK Height Conversion
71.5 inches converts to 181.61 centimetres using the standard UK height conversion formula. This height falls into the taller range for UK adults, with an average height for men in the UK being approximately 175 cm. Understanding your height in both imperial and metric measurements is useful for health calculations, particularly when checking your BMI and healthy weight range through NHS guidance. Whether you're tracking your health progress or need your height for a medical appointment, having your measurement in centimetres helps align with NHS health information and healthcare assessments.
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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.
Height Conversion and UK Health Context
To convert 71.5 inches to centimetres, multiply by 2.54 — the exact conversion factor between imperial and metric measurements. This gives you 181.61 cm, which is approximately 5 feet 11.5 inches in height. At this height, your healthy weight range according to NHS guidance depends on your age, build, and overall health status.
- UK adults typically measure height in feet and inches for everyday purposes
- Healthcare professionals and BMI calculators use centimetres for accuracy
- Height is a key component of BMI calculation: BMI = weight (kg) ÷ height (m)²
- At 181.61 cm, a healthy BMI range (18.5–24.9) corresponds to approximately 61–82 kg (9st 8lbs–12st 12lbs)
Use our free BMI calculator above to check your personal BMI and healthy weight range at your height. This ensures your assessment aligns with NHS health thresholds and gives you accurate health guidance tailored to your measurements.
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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.
UK Tools and Resources for Height and Weight Management
At 181.61 cm (71.5 inches), you have reliable options for tracking your health and weight. The free weight converter on this page helps you switch between stone, pounds, and kilograms instantly, making it easy to understand your weight in the measurements you prefer. Our free BMI calculator provides immediate feedback on whether your current weight falls within a healthy range according to NHS guidelines, accounting for your exact height and measurements.
If you're considering weight management or have concerns about your health at your height, your GP can provide personalised advice and assessment. Whether you're interested in lifestyle changes, diet support, or understanding your health metrics, NHS guidance emphasises that sustainable health improvement begins with knowing your baseline measurements — height, weight, and BMI together.
- 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.
How do I convert 71.5 inches to cm?
Multiply 71.5 by 2.54, the standard conversion factor between inches and centimetres. This gives 181.61 cm. You can also use our free weight converter tool on this page for instant conversions between inches, centimetres, feet, and other measurements.
Is 71.5 inches a tall height for UK adults?
Yes, 71.5 inches (181.61 cm) is taller than average for UK adults. The average UK adult man is approximately 175 cm (5ft 9in), so at 181.61 cm you are about 6–7 cm taller than the average. This is still within the normal healthy range.
What is my healthy weight at 71.5 inches tall?
At 181.61 cm with a healthy BMI (18.5–24.9), you would typically weigh between approximately 61–82 kg (9st 8lbs–12st 12lbs). However, your ideal weight depends on your age, muscle mass, and individual health factors. Use our free BMI calculator above to find your personalised range.
Why do NHS health assessments use centimetres instead of inches?
The NHS uses metric measurements (centimetres and kilograms) because they integrate with clinical systems, international health standards, and BMI calculations. Centimetres provide precise, standardised measurements that healthcare professionals worldwide can understand and compare reliably.
Should I mention my height in cm or feet and inches at my GP appointment?
You can use either measurement, but providing both is helpful. Most GP systems record height in centimetres for accuracy, so saying "I'm 181.61 cm tall" or "5 feet 11.5 inches" ensures your GP has clear information. Our UK health guide recommends knowing both for health appointments.
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.