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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
Free · Instant · No sign-up required

What is 73.8kg in Stones?

73.8 kilograms is equal to 11 stone and 8.1 pounds (or 11st 8.1lbs in UK measurements). This weight falls within the overweight category for most UK adults, though your individual health depends on your height, age, and overall fitness. Use our free BMI calculator above to check your personal BMI instantly and see where your weight fits on the NHS health scale. If you're tracking your weight loss or health progress, our free progress tracker can help you monitor changes over time.

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.

73.8kg to Stone Conversion — Quick Reference Table

73.8kg = 11 stone and 8.1 pounds (11st 8.1lbs)

To convert kilograms to stone, divide the kilogram value by 6.35029. The conversion formula is: kg ÷ 6.35029 = stone. For 73.8kg: 73.8 ÷ 6.35029 = 11.63 stone, which equals 11 full stones plus 0.63 × 14 pounds = 8.82 pounds, or approximately 11st 8.1lbs.

Here are nearby values to help you convert similar weights:

  • 71kg = 11st 2.4lbs
  • 72kg = 11st 5.2lbs
  • 73kg = 11st 8lbs
  • 73.8kg = 11st 8.1lbs
  • 74kg = 11st 9.9lbs
  • 75kg = 11st 12.7lbs
  • 76kg = 11st 15.5lbs

Use our free weight converter on this page to convert between kg, stone, and pounds instantly for any weight value.

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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.

73.8kg — Healthy Weight Context for UK Adults

At 73.8kg, your weight status depends on your height. For example, someone 5ft 5in (165cm) tall with this weight would have a BMI of approximately 27.2, which falls in the overweight category according to NHS guidelines. However, someone 5ft 10in (178cm) would have a BMI of about 25.1, which is within the healthy weight range.

A healthy weight for most UK adults falls between BMI 18.5 and 24.9. At 73.8kg, achieving a healthy weight range would depend on your height — taller individuals may already be healthy, while shorter individuals might aim for weight loss. If you're working towards weight loss, the NHS recommends a gradual rate of 0.5–1kg per week. Consult your GP for personalised guidance on what a healthy weight means for you.

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 73.8kg to stone manually?

Divide 73.8 by 6.35029 to get the total stone (11.63). The whole number is your stones (11), and multiply the decimal (0.63) by 14 to get pounds (8.82lbs). Result: 11st 8.1lbs. Use the weight converter on this page for instant conversions.

What is 73.8kg in pounds?

73.8kg equals approximately 162.7 pounds. To convert kg to pounds, multiply by 2.20462. The metric to imperial weight conversion is straightforward — 73.8 × 2.20462 = 162.7lbs.

Is 73.8kg a healthy weight?

It depends on your height. Use our free BMI calculator above to check your personal BMI. Generally, at 73.8kg, taller individuals (5ft 9in+) may be in a healthy range, while shorter people may be in the overweight category. Your GP can advise based on your individual health.

How much weight loss from 73.8kg would get me to a healthy BMI?

This varies by height. For someone 5ft 5in, losing 5–8kg could move you into a healthy range. For someone 5ft 8in, you may already be close. Use the BMI calculator on this page with your height to see your target healthy weight range.

How do I track weight changes from 73.8kg?

Our free progress tracker allows you to log your weight over time and see trends. Tracking helps you stay motivated and understand whether your lifestyle changes are working — consistency matters more than daily fluctuations.

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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