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
How Much Is 71kg In Stone?
71kg is equal to 11 stone and 2 pounds (11st 2lbs) using the standard UK weight conversion. This conversion is straightforward: divide 71 by 6.35029 to get stone, then multiply the decimal remainder by 14 to get the pounds. Our free weight converter above makes this instant, but understanding the maths helps you convert any weight between metric and imperial measurements. For UK health guidance, 71kg falls into the overweight category for most adults, though context matters — your height, age, and overall health profile determine whether this weight is healthy for you personally.
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.
71kg in Context — UK Health Thresholds
At 71kg, whether your weight is healthy depends entirely on your height. For example, if you are 5ft 7in (170cm) tall, a weight of 71kg gives you a BMI of 24.6, which falls in the healthy weight range (18.5–24.9) according to NHS guidelines. However, if you are 5ft 4in (163cm) tall, the same weight gives a BMI of 26.7, putting you in the overweight category (25.0–29.9). This is why BMI must always be considered alongside height — weight alone does not tell the full story. Calculate your personal BMI using our free BMI calculator above to see where you sit on the NHS scale. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends slightly lower thresholds due to higher health risks at the same BMI level.
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.
What Does 71kg Mean For Your Health?
If 71kg is above a healthy weight range for your height, even a modest loss of 3–5kg can bring meaningful health benefits — NHS research shows that losing just 5% of body weight can reduce blood pressure, improve blood sugar control, and lower cholesterol levels. Weight management is most sustainable when it combines balanced nutrition, regular physical activity, and behavioural support. If you are concerned about your weight or have weight-related health conditions such as high blood pressure or type 2 diabetes, speak to your GP, who can provide personalised guidance and may refer you to NHS weight management services. Our free progress tracker helps you log weight changes over time and stay motivated throughout your journey.
- 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.
Is 71kg a healthy weight for me?
It depends on your height. Use our BMI calculator above with your height to see your personal BMI. If it falls between 18.5–24.9, 71kg is a healthy weight for you. If it's higher, your GP can discuss weight management options tailored to your health profile.
How do I convert 71kg to stone without a calculator?
Divide 71 by 6.35029 to get stone (approximately 11.19 stone). Take the decimal (0.19) and multiply by 14 to get pounds (approximately 2.7lbs). So 71kg ≈ 11 stone 3lbs. Use our weight converter above for exact figures.
What's the healthy weight range for my height if I'm 71kg?
Calculate your healthy range using our BMI calculator. A healthy BMI is 18.5–24.9. Multiply your height in metres squared by 18.5 and 24.9. For example, at 1.73m tall, the healthy range is roughly 55kg–74kg, so 71kg falls near the upper end of healthy.
Can prescription weight loss medication help if 71kg is above my healthy range?
Prescription weight management injections like Mounjaro or Wegovy may be considered if you have a BMI over 30, or 27–29.9 with weight-related health conditions. You'll need a clinical assessment from your GP or a prescriber. Our GLP-1 weight loss calculator can show you potential outcomes if you're eligible.
What's the difference between 71kg in stone and in pounds?
71kg = 11 stone 2lbs exactly. Stone and pounds are imperial measurements used in the UK. One stone equals 14 pounds. Our free weight converter above switches between kg, stone, and pounds instantly for any weight.
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.