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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 83 Kg in Stones?

83 kg is equal to 13 stone and 1.6 pounds (13st 1.6lbs). This conversion uses the standard metric to imperial weight formula where one kilogram equals 0.157473 stone. If you're trying to understand your weight in UK measurements or comparing your weight to NHS health guidelines, our free weight converter above makes it easy to switch between kg, stone, and pounds instantly. Use our BMI calculator to see how this weight relates to your health 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.

83 Kg to Stone Conversion Table and Formula

To convert 83 kg to stone, divide 83 by 6.35029 (the number of kilograms in one stone). This gives you 13.07 stone, which breaks down into 13 stone and 1.6 pounds. The formula for converting kilograms to stone is: kg ÷ 6.35029 = stone. Below is a reference table showing 83 kg alongside nearby weight values in both stone and pounds, so you can see how this weight compares:

  • 78 kg = 12st 4.2lbs
  • 80 kg = 12st 9.2lbs
  • 81 kg = 12st 12.2lbs
  • 82 kg = 12st 13.2lbs
  • 83 kg = 13st 1.6lbs
  • 84 kg = 13st 2.6lbs
  • 85 kg = 13st 5.6lbs
  • 86 kg = 13st 6.6lbs
  • 88 kg = 13st 12.6lbs

You can also convert 83 kg directly using stones and lbs by multiplying 83 by 2.20462 to get approximately 183.2 pounds, then dividing by 14 to find the stone 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.

83 Kg BMI and Healthy Weight Context for UK Adults

At 83 kg, your BMI depends entirely on your height. For example, at an average UK height of 1.73m (5ft 8in), 83 kg gives a BMI of approximately 27.7, which falls into the overweight category according to NHS guidelines (overweight is BMI 25–29.9). At taller heights, the BMI would be lower; at shorter heights, it would be higher. According to NHS guidelines, a healthy BMI is between 18.5 and 24.9. Calculate your personal BMI using our free BMI calculator above, which accounts for your exact height. For most UK adults, a healthy weight range at average heights sits between 50–75 kg, though this varies significantly by frame size and muscle mass. If you're concerned about your weight or health, your GP can provide personalised advice.

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 83 kilograms to stone manually?

Divide 83 by 6.35029 to get stone. The answer is 13.07 stone, which equals 13 stone and 1.6 pounds. Alternatively, multiply 83 by 2.20462 to get pounds (183.2 lbs), then divide by 14 to convert to stone.

Is 83 kg a healthy weight?

It depends on your height and body composition. At average UK heights, 83 kg often falls into the overweight category according to BMI guidelines. Use our free BMI calculator above to check your personal BMI, then discuss the results with your GP for personalised health advice.

What's the difference between stone and kilograms?

Kilograms (kg) are metric units used in most countries and by the NHS clinically. Stone is an imperial unit used traditionally in the UK for body weight. One stone equals 6.35 kg. The UK weight converter tool on this page instantly converts between both units.

How much weight would I need to lose from 83 kg to reach a healthy BMI?

This depends on your height. At 5ft 8in (1.73m), a healthy BMI range is roughly 50–75 kg. Your GP or a healthcare professional can advise on safe, sustainable weight loss targets. Try our progress tracker to monitor any changes over time.

Can I use 83 kg to stone conversion for other purposes?

Yes, the conversion applies anywhere body weight is measured. UK personal trainers, weight management services, and fitness programmes often use both units interchangeably, so knowing both measurements is useful across health and fitness contexts.

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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