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
9.4 Inches in Centimetres — Quick Conversion
9.4 inches converts to 23.876 centimetres — a straightforward metric conversion commonly needed for health measurements in the UK. Whether you're checking height, waist circumference, or other body measurements for NHS health guidance, understanding both imperial and metric units is essential. MyWeightCheck provides quick, accurate conversions to support your uk health information needs and help you track measurements relevant to your wellbeing.
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.
Common Height and Body Measurements in UK Healthcare
In the UK, healthcare professionals increasingly use centimetres and kilograms, following NHS guidance and metric standards. However, many UK adults still think in imperial units — inches and pounds — creating a need for quick conversions. Body measurements like waist circumference, chest, and height are critical for assessing health risks. For example, the NHS uses waist measurements in centimetres to evaluate cardiovascular risk: men over 94 cm (37 inches) and women over 80 cm (31.5 inches) face increased health risk. Our free weight converter helps you switch between imperial and metric instantly, supporting accurate health tracking.
- 9.4 inches = 23.876 cm (exact conversion)
- Height conversions are commonly needed for BMI calculations
- Waist measurements in cm help assess abdominal fat risk
- NHS health guidance primarily uses metric measurements
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 Measurements for Your UK Health Assessment
Knowing your measurements in both units supports clearer communication with your GP and understanding of NHS health advice. If you're monitoring your weight management or healthy weight UK progress, accurate height and body measurements are essential for calculating BMI and assessing health risk. Our free BMI calculator on this page accepts both imperial and metric measurements, making it simple to check your BMI regardless of which units you prefer. Whether you're planning lifestyle changes, discussing health with your GP, or tracking progress over time, having measurements in both cm and inches ensures you can access all available health resources and guidance.
- 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 9.4 inches in centimetres?
9.4 inches equals 23.876 centimetres exactly. This conversion uses the standard factor of 1 inch = 2.54 cm. For practical health purposes, this is often rounded to 23.9 cm. Our weight converter on this page can instantly convert any imperial measurement to metric.
Why do UK health services use centimetres?
The NHS and UK healthcare follow metric (SI) units as the standard for clinical measurements, including height, waist circumference, and other body measurements. Metric units are more precise and align with international medical guidelines. However, understanding both metric and imperial is helpful since many UK adults use imperial measurements at home.
How do I convert inches to cm for other measurements?
Multiply the number of inches by 2.54 to get centimetres. For example: 6 inches × 2.54 = 15.24 cm. Use our free weight converter above to instantly convert any height, waist, or body measurement between imperial and metric units.
Is waist measurement in cm important for UK health guidance?
Yes. The NHS uses waist circumference in centimetres to assess cardiovascular risk and abdominal fat distribution. Men with waist over 94 cm and women over 80 cm have increased risk. Knowing your waist in cm helps you understand your health risk according to official UK health guidance.
What's the difference between height in inches and centimetres?
They're the same height expressed in different units. Height is commonly measured in feet and inches (imperial) or centimetres (metric). For example, 5 feet 9 inches = 175 cm. Use our free BMI calculator, which accepts both units, to check your healthy weight range for your height in either measurement system.
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.