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
71 Kg to Stone — Quick Conversion Guide
71 kilograms is equal to 11 stone and 3 pounds (11st 3lbs). This conversion uses the standard kg to stone formula, dividing kilograms by 6.35029. Whether you're checking your weight against NHS health guidelines or simply need to convert metric to imperial weight measurements, understanding what 71kg means in stone is straightforward. Use our free weight converter above to check other measurements instantly.
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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.
How to Convert 71 Kg to Stone
To convert 71kg to stone, divide by 6.35029. The calculation is: 71 ÷ 6.35029 = 11.19 stone, which equals 11 stone and 3 pounds. If you prefer a kilogram to stone conversion formula for reference: weight (kg) ÷ 6.35029 = weight (stone).
The reverse calculation works the same way — to convert stone and pounds back to kilograms, multiply by 6.35029. You can also convert to pounds directly: 71kg = 156.5 lbs.
- 71 kg = 11st 3lbs exactly
- Alternative: 156.5 pounds
- Formula: kg ÷ 6.35029 = stone
Our free weight converter above makes these calculations instant for any weight in kg, stone, or pounds.
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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.
BMI and Healthy Weight Context at 71 Kg
At 71kg, your health category depends on your height. For a person of average UK height (around 1.68m / 5ft 6in), a weight of 71kg gives a BMI of approximately 25.2, which falls into the overweight range according to NHS guidelines. At slightly taller heights (1.73m / 5ft 8in), the same weight gives a BMI of 23.7, which is within the healthy weight range (18.5–24.9).
BMI is a useful screening tool, but it doesn't account for muscle mass or where fat is stored. Use our free BMI calculator above to check your personal BMI at your actual height, and discuss your individual healthy weight range with your GP.
- 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 71 kg overweight according to NHS guidelines?
Whether 71kg is overweight depends on your height. For an adult of average UK height (around 5ft 6in / 1.68m), 71kg falls into the overweight range (BMI 25.2). For taller adults, it may be within the healthy range. Calculate your personal BMI using the free calculator on this page for an accurate assessment based on your height.
What is the formula to convert kilograms to stone?
The kilogram to stone conversion formula is: weight (kg) ÷ 6.35029 = weight (stone). So 71kg ÷ 6.35029 = 11.19 stone (or 11 stone 3 pounds). The reverse formula is: weight (stone) × 6.35029 = weight (kg). Use our weight converter above for instant conversions.
What is 71 kg in pounds?
71 kilograms equals 156.5 pounds. This uses the conversion: kg × 2.20462 = lbs. So 71 × 2.20462 = 156.5 lbs. You can also express this as 11 stone 3 pounds using UK stone measurements, which is often more familiar to UK adults.
What is a healthy weight range at my height if I weigh 71 kg?
A healthy weight range depends on your height. At 1.73m (5ft 8in), healthy weight is roughly 55–75kg. At 1.68m (5ft 6in), it's approximately 52–70kg. At 1.63m (5ft 4in), healthy weight is around 49–66kg. Calculate your personal healthy weight range using the free BMI calculator above, then discuss with your GP.
How does 71 kg compare to average UK adult weight?
The average UK adult weighs approximately 80kg (men) or 72kg (women). At 71kg, you're close to the average UK female weight and below average for males. However, average weight doesn't equal healthy weight — your BMI relative to your height matters more for health. Use our BMI calculator to assess your personal health weight range.
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.