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 71.5kg in Stones?
71.5 kilograms is equal to 11 stone 3.6 pounds. This conversion uses the standard metric to imperial weight measurement that's widely used across the UK. Whether you're checking your weight for health reasons, shopping for clothing sizes, or tracking fitness progress, understanding your weight in stone is helpful since most UK adults prefer this traditional measurement. Use our free weight converter above to switch between kilograms and stone instantly, and explore how this weight compares to healthy ranges for your height using our BMI calculator.
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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.
71.5kg Conversion Table and Formula
71.5kg = 11 stone 3.6 pounds (or 11st 3.6lbs)
To convert kilograms to stone, divide the kilogram value by 6.35029. For 71.5kg: 71.5 ÷ 6.35029 = 11.26 stone. To express this as stone and pounds, multiply the decimal by 14: 0.26 × 14 = 3.6 pounds.
Here's a quick conversion table with nearby values for reference:
- 68kg = 10st 10.5lbs
- 69kg = 10st 12.3lbs
- 70kg = 11st 0.1lbs
- 71kg = 11st 1.9lbs
- 71.5kg = 11st 3.6lbs
- 72kg = 11st 3.7lbs
- 73kg = 11st 5.5lbs
- 74kg = 11st 7.3lbs
- 75kg = 11st 9.1lbs
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.
Is 71.5kg a Healthy Weight?
Whether 71.5kg is healthy depends on your height. For someone 5ft 8in (173cm), this weight gives a BMI of approximately 23.9 — within the NHS healthy weight range of 18.5 to 24.9. However, for someone 5ft 2in (157cm), the same weight would give a BMI of around 29.1 — classed as overweight. Use our free BMI calculator on this page to check your personal BMI and see where you fall on the NHS health categories. Remember that BMI is a screening tool only and doesn't account for muscle mass or body composition — your GP can discuss what weight range is right for your individual circumstances.
- 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 71.5kg to stones and pounds?
Divide 71.5 by 6.35029 to get 11.26 stone. To express this as stone and pounds, multiply the decimal (0.26) by 14, which gives 3.6 pounds. So 71.5kg = 11 stone 3.6 pounds. Use our weight converter above for instant calculations.
Is 71.5kg overweight in the UK?
It depends on your height and body composition. At 5ft 8in, 71.5kg is within a healthy BMI range. At 5ft 2in, it would be classed as overweight. Check your personal BMI using our free BMI calculator on this page to see where you fall on NHS health categories.
What's the formula to convert kg to stone?
The formula is: kilograms ÷ 6.35029 = stone. For 71.5kg: 71.5 ÷ 6.35029 = 11.26 stone. To convert the decimal to pounds, multiply by 14. This metric to imperial conversion is the standard used across the UK.
How do I track weight changes at this level?
Keep a regular log of your weight using our free progress tracker. Recording your weight weekly in the same conditions (same time of day, same day each week) helps you spot trends. Small fluctuations are normal — what matters is the overall direction over several weeks.
What's the healthy weight range if I'm 71.5kg?
Your healthy weight range depends on your height. Use our BMI calculator to find your specific range. As a general guide, the NHS recommends a BMI between 18.5 and 24.9 for most adults. For people of South Asian or Black African heritage, lower thresholds apply — discuss this with your GP.
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.