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 is 180lb in Stone and Kilograms?
180 pounds equals 12 stone and 12 pounds (12st 12lb), or approximately 81.6 kilograms. If you're checking your weight against UK health guidance, our free weight converter helps you switch between imperial and metric measurements instantly. Whether you've seen your weight in pounds and want to understand it in UK measurements, or you're tracking your health against NHS standards, knowing how to convert between these units is straightforward and useful for comparing yourself against healthy weight ranges.
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.
How Does 180lb Compare to UK Health Guidelines?
According to NHS guidance, whether 180lb is a healthy weight depends on your height and age. For most adults, a healthy BMI falls between 18.5 and 24.9. At 180lb (81.6kg), you could have a healthy BMI if you're taller—for example, someone 5ft 10in (178cm) would have a BMI of around 28.5, which falls into the overweight category. Someone 6ft tall (183cm) would have a BMI of approximately 27.6, also overweight. However, for adults of South Asian, Chinese, Black African, or Black Caribbean heritage, NHS guidelines recommend lower thresholds, with a healthy range starting at 18.5 and capping at 22.9.
Calculate your personal BMI using our free BMI calculator above to see exactly where you fall and get NHS-aligned guidance for your individual height.
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.
UK Tools and Resources for Weight Management
If you're concerned about your weight at 180lb, the NHS recommends starting with Tier 1 support—self-help resources and community programmes. Your GP can assess your overall health and discuss weight management options, including whether you might benefit from structured programmes or specialist services. Use our free weight converter to track your weight in whichever units you prefer, and our GLP-1 weight loss calculator if you're exploring prescription weight loss options. The NHS also offers the free Weight Loss Plan app and access to dietitian-led programmes. Remember, sustainable weight loss typically occurs at a rate of 0.5–1kg per week.
- 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 180lb a healthy weight?
It depends on your height and ethnicity. At 180lb, a BMI of 25–29 (overweight category) is common for most heights. Use our free BMI calculator above to check your personal BMI, then discuss any concerns with your GP, who can assess your overall health.
What is 180lb in kilograms?
180 pounds equals approximately 81.6 kilograms. Use our free weight converter to switch between pounds, kilograms, and stone instantly for accurate conversions.
How much weight would I need to lose to reach a healthy BMI at 180lb?
The amount depends on your height. Someone 5ft 10in would need to lose approximately 10–15lbs (5–7kg) to reach the overweight/healthy boundary. Your GP or a dietitian can provide personalised guidance based on your individual circumstances.
What does the NHS say about weight management at 180lb?
The NHS recommends starting with lifestyle changes—balanced diet and regular physical activity. If you're overweight, your GP can discuss structured support programmes, community weight management services, or specialist referrals if appropriate.
Can I use the weight converter for tracking weight loss?
Yes. Our free weight converter helps you track weight changes across different units. You can also use our progress tracker to log weight loss over time and stay motivated toward your goals.
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.