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
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71 Pounds to Kilograms — What's Your BMI?
71 pounds converts to approximately 32.2 kilograms. However, your BMI depends entirely on your height — the same weight can fall anywhere from underweight to obese depending on how tall you are. This guide shows you what BMI 71 pounds gives you at common UK heights, and where each result sits within NHS weight categories. Use our free BMI calculator above to check your personal BMI 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.
71 Pounds BMI at Different Heights
At 71 pounds (32.2 kg), your BMI varies significantly by height. Here are typical examples:
- 5ft 0in (152cm): BMI 23.8 — Healthy weight (NHS)
- 5ft 4in (163cm): BMI 20.4 — Healthy weight (NHS)
- 5ft 8in (173cm): BMI 17.7 — Underweight (NHS)
- 5ft 10in (178cm): BMI 16.8 — Underweight (NHS)
- 6ft 0in (183cm): BMI 15.8 — Underweight (NHS)
These examples show how weight alone is not enough to assess health — height is essential. For accurate metric to imperial weight context, 71 pounds in stone equals approximately 5 stone 1 pound. Use our weight converter to switch between kilograms, stone, and pounds instantly.
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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.
NHS BMI Categories and Limitations
According to NHS guidelines, a healthy BMI sits between 18.5 and 24.9. At 71 pounds, you may fall into the healthy weight category if you're around 5ft 0in, but underweight if you're taller. BMI is a useful screening tool but has important limitations — it doesn't distinguish between muscle and fat, and doesn't account for where fat is stored. Ethnicity also matters: for adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds starting at 18.5–22.9 for healthy weight. Your GP can provide personalised advice about what your weight and BMI mean for your individual health.
- 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 pounds in kilograms?
71 pounds equals 32.2 kilograms. To convert, multiply pounds by 0.453592. You can also use our free weight converter above to switch between kg, stone, and pounds instantly.
Is 71 pounds a healthy weight?
This depends entirely on your height. At 71 pounds, you may be underweight, healthy, or overweight depending on how tall you are. Use our free BMI calculator to find your exact BMI and see which NHS category you fall into.
What BMI does 71 pounds give?
At 71 pounds (32.2kg), BMI ranges from approximately 15.8 (at 6ft) to 23.8 (at 5ft). Healthy BMI is 18.5–24.9 according to NHS guidelines, so context depends on your height.
How do I convert 71 pounds to stone?
71 pounds equals 5 stone and 1 pound. To convert any weight from pounds to stone and pounds, divide by 14. Our weight converter provides instant conversions across kg, stone, and pounds.
Should I be concerned about my weight at 71 pounds?
Weight alone isn't enough to assess health — height, age, muscle mass, and overall fitness all matter. Your GP can give personalised health advice. If you're concerned, book an appointment to discuss your weight in context.
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.