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Used by Mounjaro & Wegovy patients across the UK

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
Get the guide + free tracker — £1.99 →

Free tracker included with every download this week

GLP-1 Medication Guide — 11 chapters, 100+ pages, NHS-aligned with free 52-week weight loss tracker calendar
Free · Instant · No sign-up required

5.2 Pounds to Kilograms — Convert Now

5.2 pounds equals 2.36 kilograms using the standard conversion formula. This is a small weight unit commonly used when measuring lightweight items, food portions, or newborn babies in some contexts. To convert pounds to kilograms, divide the pound value by 2.20462. You can use our free weight converter above to switch between metric and imperial measurements instantly, or refer to the simple formula and reference table below for quick conversions across a range of values.

10,000+ calculations today · NHS-aligned thresholds · 100% free

26%of UK adults are living with obesityNHS Digital, 2023
64%of adults in England are overweight or obeseHealth Survey for England
£6.5bnannual cost of obesity to the NHSPublic Health England
4.7Mpeople in England eligible for weight loss drugsNICE estimates, 2024

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.

Below 18.5Underweight
18.5 – 24.9Healthy
25 – 29.9Overweight
30+Obese

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.

Pounds to Kilograms Conversion Formula & Table

To convert 5.2 pounds to kg, use this simple formula: divide the pound value by 2.20462. So 5.2 lbs ÷ 2.20462 = 2.36 kg exactly.

Conversely, to convert kg to stone and pounds (the standard metric to imperial weight conversion used across the UK), you can use the kilogram to stone conversion factor of 6.35029 kg per stone.

  • 5.2 lbs = 2.36 kg
  • 4.8 lbs = 2.18 kg
  • 5.0 lbs = 2.27 kg
  • 5.4 lbs = 2.45 kg
  • 5.6 lbs = 2.54 kg

This conversion table shows values either side of 5.2 pounds to help you quickly reference similar weights in kilograms.

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How It Works

Three simple steps to understand your weight and take action.

1Check Your BMI

Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.

2Explore Your Options

If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.

3Track Your Progress

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.

BMI Context at 5.2 Kg Weight

At 2.36 kg (5.2 lbs), this weight falls below the range used for adult BMI calculations, as it represents a very light mass. Adult BMI calculations typically begin around 40 kg minimum. However, 5.2 pounds is a relevant measurement for newborn babies, food portions, or small animals. If you're calculating your own body weight in the UK, use our free BMI calculator above to check whether your weight falls in a healthy range for your height. The NHS recommends a healthy BMI between 18.5 and 24.9 for most adults, with lower thresholds for some ethnic groups.

Mounjaro (Tirzepatide)
  • 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
Read our full Mounjaro guide →
Wegovy (Semaglutide)
  • 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
Read our full Wegovy guide →

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.

FeatureMounjaroWegovy
Drug classDual GIP/GLP-1 agonistGLP-1 agonist
Active ingredientTirzepatideSemaglutide
Avg. weight loss15–22.5%12–17%
Key trialSURMOUNT-1 (2022)STEP 1 (2021)
Max dose15 mg weekly2.4 mg weekly
Escalation period20–32 weeks16–20 weeks
AdministrationWeekly injection (pen)Weekly injection (pen)
NHS availabilityPrivate prescription onlyNHS & private
Approx. private cost£150–£250/month£150–£300/month
Common side effectsNausea, diarrhoea, constipationNausea, 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.

Standard eligibility
  • BMI of 30 or above (obese)
  • Age 18 or over
  • No contraindicated conditions
  • Committed to lifestyle changes
With comorbidities
  • 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 5.2 pounds a healthy weight for an adult?

5.2 pounds (2.36 kg) is far too light for an adult human. Healthy adult weights vary by height but typically range from 50 kg to 100+ kg. If you're concerned about your actual body weight, use the free BMI calculator on this page to check if your weight is healthy for your height.

What is 5.2 pounds used to measure?

5.2 pounds is commonly used to measure newborn babies (average birth weight is 3.4 kg or 7.5 lbs), food items like bags of flour or sugar, or small objects. It's not a typical human adult body weight measurement.

How do I convert pounds to kilograms quickly?

Divide the pound value by 2.20462 to get kilograms. So 5.2 lbs ÷ 2.20462 = 2.36 kg. Use our free weight converter above for instant conversions between kg, stone, and pounds across any value.

What's the difference between pounds and stone?

One stone equals 14 pounds exactly. Stone and pounds are traditional UK imperial measurements for body weight, whilst kilograms are the metric standard. Most NHS health records use kilograms, but UK adults often reference their weight in stone and pounds.

How do I check if my weight is healthy?

Use the free BMI calculator on this page, which works for any weight you enter. Enter your weight in kg, stone and pounds, or lbs, plus your height, and it will show you whether your BMI falls in the healthy range according to NHS guidelines.

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.

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