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
71.5 Kg In Stone — Healthy Weight Guide
71.5 kg converts to 11 stone 3 pounds (or 11.2 stone) in UK measurements. Whether this is a healthy weight depends entirely on your height. Using NHS guidelines, we'll show you how to check if 71.5 kg falls within a healthy range for your individual measurements. Our free BMI calculator above can instantly assess your weight status — simply enter your height and current weight to see where you stand.
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.
Healthy Weight Ranges At Different Heights
A weight of 71.5 kg can be healthy, overweight, or obese depending on your height. The NHS uses BMI (body mass index) to determine healthy weight ranges. Here are three concrete examples using standard UK heights:
- At 5ft 2in (158cm): 71.5 kg gives a BMI of 28.6 — this falls in the overweight range (25.0–29.9). Healthy range for this height: 50–63 kg (7st 12lbs–9st 13lbs).
- At 5ft 7in (170cm): 71.5 kg gives a BMI of 25.1 — this is just above the healthy weight threshold. Healthy range for this height: 55–74 kg (8st 9lbs–11st 9lbs).
- At 5ft 10in (178cm): 71.5 kg gives a BMI of 22.6 — this is solidly in the healthy weight range (18.5–24.9). Healthy range for this height: 59–79 kg (9st 4lbs–12st 6lbs).
To convert your own measurements instantly between kilograms and stone, use our free weight converter above.
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.
NHS Guidance And What To Do Next
The NHS recommends a healthy BMI of 18.5–24.9 for most UK adults. If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, lower thresholds apply (18.5–22.9). Beyond BMI, waist circumference also matters: men should aim for below 94cm (37in), women below 80cm (31.5in). If 71.5 kg puts you in the overweight or obese range, your GP can discuss personalised next steps — which may include lifestyle changes, dietary support, or in some cases, prescription weight loss treatment. Remember, even a 5–10% reduction in body weight can improve health significantly.
- 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 71.5 kg in stone and pounds?
71.5 kg equals 11 stone 3 pounds (or 11.2 stone). To convert kg to stone, divide by 6.35029. To convert kilograms to stone and pounds more precisely, 71.5 kg = 11 stone + 3 pounds. Use our weight converter above to check other values instantly.
Is 71.5 kg a healthy weight?
It depends on your height. At 5ft 7in, 71.5 kg is just above the healthy range. At 5ft 10in, it's healthy. At 5ft 2in, it's overweight. Use our BMI calculator above, entering your height and weight, to see your exact status according to NHS guidelines.
What is the healthy weight range for my height?
Healthy weight ranges vary by height. For example: at 5ft 6in (168cm), healthy weight is 54–72 kg (8st 7lbs–11st 5lbs). Calculate your personal healthy range using our free BMI calculator above by entering your height — it will show you the exact range for your measurements.
Should I lose weight if I'm 71.5 kg?
Only your GP can advise based on your overall health. If your BMI is 25 or above, lifestyle changes like increased activity and balanced diet are recommended first. The NHS suggests losing no more than 0.5–1 kg per week. Speak to your GP if you'd like personalised guidance tailored to your health.
What other measurements matter besides weight?
Waist circumference is important alongside weight. The NHS recommends men keep waist below 94cm (37in) and women below 80cm (31.5in). BMI also has limitations — it doesn't account for muscle mass. Your GP can discuss your overall health picture, not just the number on the scales.
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.