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
7.2 Pounds to Kg — Healthy Weight Context
7.2 pounds converts to approximately 3.27 kilograms. Whether this weight is healthy depends entirely on your height — the same weight can be underweight, healthy, or overweight depending on how tall you are. This guide shows you how to assess your weight in context using NHS guidelines, and how to use your height to determine if you're in a healthy range.
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 By Height
At 3.27 kg, you're looking at a very low body weight. To understand if this is healthy, you need to compare it against your height. Here are three real-world examples using the metric to imperial weight conversion framework:
- If you're 150 cm (4ft 11in): 3.27 kg gives a BMI of 1.5 — severely underweight. Healthy range for this height is 41–56 kg.
- If you're 170 cm (5ft 7in): 3.27 kg gives a BMI of 1.1 — severely underweight. Healthy range is 53–71 kg.
- If you're 190 cm (6ft 3in): 3.27 kg gives a BMI of 0.9 — severely underweight. Healthy range is 66–89 kg.
Use our free BMI calculator above to calculate your personal BMI and see exactly where you fall against NHS healthy weight ranges. You can also use the weight converter to switch between kg, stone, and pounds instantly.
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 Next Steps
According to NHS guidelines, a healthy BMI for UK adults is 18.5 to 24.9. At 3.27 kg, you would fall well below this range regardless of height — this is classified as severely underweight and requires medical attention. If you're at this weight or your child is, contact your GP immediately. Underweight status can indicate malnutrition, eating disorders, hormonal imbalances, or underlying health conditions. Your GP can assess the cause and recommend appropriate support. Remember that your waist measurement (ideally under 94 cm for men, 80 cm for women) is also important alongside weight. A holistic health picture includes diet, activity level, and overall wellbeing — not weight alone.
- 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 7.2 pounds in kg exactly?
7.2 pounds equals 3.266 kg (rounded to 3.27 kg). To convert pounds to kilograms, divide the pounds value by 2.20462. This conversion applies whether you're measuring body weight, food, or any other measurement using metric to imperial weight standards.
Is 3.27 kg a healthy weight for an adult?
No. At 3.27 kg, a person would be severely underweight at any adult height. Healthy weights for adults range from approximately 41 kg (for very short adults) to over 90 kg (for tall adults). Your specific healthy range depends on your exact height — use the BMI calculator above to find your personal target.
How do I convert kilograms to stone?
Divide kg by 6.35029 to get stone. For example, 70 kg ÷ 6.35 = 11 stone. You can also use our free weight converter above to instantly convert between kg, stone, and pounds — no mental maths required.
What should I do if I'm significantly underweight?
Contact your GP. Being severely underweight (BMI under 18.5) can indicate eating disorders, malnutrition, hormonal problems, or serious health conditions. Your GP can investigate the cause, check your nutritional status, and refer you to appropriate support services. This is not something to manage alone.
How do I find my healthy weight range?
Use your height to calculate your healthy BMI range (18.5–24.9). Multiply your height in metres squared by 18.5 and 24.9 to get the lower and upper bounds. For example, at 1.70m: lower = 18.5 × 2.89 = 53.5 kg, upper = 24.9 × 2.89 = 71.9 kg. Our BMI calculator does this instantly.
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.