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 BMI Is 71.5 Kg in Pounds?
71.5 kg is equivalent to 157.6 pounds. However, your BMI — and whether this weight is healthy for you — depends entirely on your height. The same weight can be a healthy range for one person and overweight for another. Use our free BMI calculator above to find your exact BMI, or read on to see what 71.5 kg means at different heights according to NHS guidelines.
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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.
71.5 Kg BMI at Different Heights
To convert 71.5 kg to pounds, multiply by 2.20462 — giving 157.6 lbs. However, to understand whether this weight is healthy, you need to calculate your BMI (Body Mass Index), which combines weight with height. Here's what 71.5 kg gives you at common UK heights:
- 5ft 2in (157cm): BMI 29.0 — Overweight (NHS category)
- 5ft 5in (165cm): BMI 26.2 — Overweight
- 5ft 8in (173cm): BMI 23.9 — Healthy weight
- 5ft 10in (178cm): BMI 22.6 — Healthy weight
- 6ft (183cm): BMI 21.3 — Healthy weight
Your exact BMI determines your health category. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower thresholds, so the same weight may fall in a different category. Calculate your personal BMI now using the calculator on this page to see your exact result.
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 BMI Categories and What They Mean
The NHS uses these standard BMI ranges for all UK adults: Below 18.5 is underweight; 18.5–24.9 is healthy weight; 25–29.9 is overweight; 30–34.9 is obese (Class I); 35–39.9 is obese (Class II); and 40+ is severely obese (Class III). At 71.5 kg, your category depends entirely on your height. Remember that BMI has limitations — it doesn't account for muscle mass, bone density, or where fat is stored. A muscular person may have a high BMI but low body fat. Your GP can provide personalised health advice based on your full health picture, not BMI alone. Use our free weight converter to see your weight in stone and pounds, and track changes over time with our progress tracker.
- 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 pounds?
71.5 kg equals 157.6 pounds (lbs). To convert kilograms to pounds, multiply by 2.20462. You can also use our free weight converter above to switch between kg, stone, and lbs instantly for any weight.
Is 71.5 kg a healthy weight?
It depends on your height. At 71.5 kg, you could have a healthy BMI (if you're taller) or an overweight BMI (if you're shorter). Use our BMI calculator above to find your exact BMI and NHS category based on your personal height.
What is the healthy weight range for my height?
A healthy BMI is 18.5–24.9 according to NHS guidelines. Your healthy weight range depends on your height — shorter people will have a lower healthy weight range than taller people. Calculate your range using our free BMI calculator on this page.
Why does BMI depend on height?
BMI uses a formula that divides weight by height squared. This accounts for the fact that taller people naturally weigh more. Two people with the same weight can have very different BMIs if they have different heights.
Are there different BMI categories for different ethnic groups?
Yes. The NHS recommends lower BMI thresholds for adults of South Asian, Chinese, Black African, and Black Caribbean heritage due to higher health risks at lower BMI levels. Your GP can advise if this applies to you.
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.