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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 →

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GLP-1 Medication Guide — 11 chapters, 100+ pages, NHS-aligned with free 52-week weight loss tracker calendar
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What Is 102 Pounds in Stone and What's Your BMI?

102 pounds equals 7 stone 4 pounds (or 46.3 kilograms). Your BMI at this weight depends on your height — it can range from underweight to overweight depending on how tall you are. Understanding your BMI is important for assessing whether you're in a healthy weight range according to NHS guidelines. Use our free BMI calculator above to find your exact BMI instantly, or check the examples below to see where you fall at different heights.

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.

BMI Examples at 102 Pounds Across Different Heights

To convert 102 pounds to stone, simply divide by 14 — this gives you 7 stone 4 pounds. In metric, 102 pounds equals approximately 46.3 kilograms. Your BMI at this weight varies significantly by height. Here are example BMI values at common UK heights:

  • 5ft 0in (152cm): BMI 21.5 — healthy weight
  • 5ft 4in (163cm): BMI 17.5 — underweight
  • 5ft 8in (173cm): BMI 15.7 — underweight
  • 6ft 0in (183cm): BMI 13.8 — underweight
  • 5ft 2in (157cm): BMI 18.9 — healthy weight

These examples show how stone to kg conversion and height both affect your BMI category. The weight in stone of 7 stone 4 pounds is quite light for most adult heights, placing most people at or below the healthy weight range.

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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.

Understanding NHS BMI Categories and Limitations

According to NHS guidelines, a healthy BMI is between 18.5 and 24.9 for most UK adults. At 102 pounds (46.3 kilograms), you're likely in the healthy or underweight category depending on your height. However, BMI has important limitations — it doesn't distinguish between muscle and fat, so athletes or very muscular individuals may have a higher BMI without excess body fat. Additionally, for adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds due to higher health risks at the same BMI level. Always consult your GP for personalised health advice based on your individual circumstances.

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.

How do I convert 102 pounds to stone and kilograms?

102 pounds equals 7 stone 4 pounds (using the conversion: 102 ÷ 14 = 7.29 stone). In kilograms, 102 pounds is approximately 46.3 kg. Use our free weight converter on this page to switch between units instantly.

Is 102 pounds a healthy weight for an adult?

It depends on your height. At 102 pounds, most adults would be in the underweight or low healthy weight range. Taller individuals may be underweight at this level, whilst shorter adults may be in the healthy range. Use our BMI calculator to check your specific BMI.

What BMI do I have at 102 pounds?

Your BMI at 102 pounds depends on your height. For example, at 5ft 4in you'd have a BMI of around 17.5 (underweight), but at 5ft 0in the BMI would be around 21.5 (healthy weight). Calculate your exact BMI above using your height and weight.

How many kilos is 102 pounds?

102 pounds equals approximately 46.3 kilograms. This is calculated by multiplying pounds by 0.453592. Our weight converter makes it easy to switch between kilogram to stone conversion and other metric measurements.

Should I be concerned if my BMI is underweight at 102 pounds?

If your BMI falls in the underweight category (below 18.5), it's worth discussing with your GP, as underweight individuals may face health risks including weakened immunity and bone density issues. Your GP can assess your individual health and provide personalised guidance.

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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