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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 130kg in Stone and Pounds?

130kg converts to 20 stone 6.2 pounds in UK measurements. However, your BMI at this weight depends entirely on your height — the same weight can be a healthy range for a tall adult or indicate excess weight for someone shorter. Using our free BMI calculator above, you can find your exact BMI by entering your height and weight. Understanding where you fall on the NHS BMI scale helps you assess whether this weight is in a healthy range for your individual circumstances.

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.

130kg BMI at Different Heights

At 130kg, your BMI varies significantly depending on your height. Here are examples across typical adult heights in the UK:

  • At 5ft 4in (163cm): BMI of 32.3 — obese (Class I)
  • At 5ft 8in (173cm): BMI of 28.7 — overweight
  • At 5ft 10in (178cm): BMI of 27.1 — overweight
  • At 6ft 0in (183cm): BMI of 25.5 — healthy weight
  • At 6ft 2in (188cm): BMI of 24.1 — healthy weight

Use the weight converter tool above to see your exact weight in stone and pounds. For a precise BMI assessment, enter your specific height into our free BMI calculator to understand which NHS category applies to you.

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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 BMI Categories and Limitations

The NHS uses these BMI ranges to classify weight status for UK adults: healthy weight (18.5–24.9), overweight (25.0–29.9), and obese (30.0+). At 130kg, where you fall depends on your height, as shown above. However, BMI has important limitations — it doesn't distinguish between muscle and fat, so athletes may have a higher BMI despite low body fat. Your GP can provide personalised health guidance based on your BMI, waist circumference, and overall health picture. Track your progress using our free progress tracker if you're working towards a weight goal.

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.

What is 130kg in stone and pounds exactly?

130kg converts to 20 stone 6.2 pounds. To convert kilograms to stone, divide by 6.35029. Our weight converter above shows instant conversions between kg, stone, and pounds for any weight.

Is 130kg a healthy weight?

It depends on your height. At 130kg, you could be in the healthy weight range if you're tall (around 6ft 0in or above), or in the obese category if you're shorter. Your GP can assess your individual health status.

What BMI is 130kg at 5ft 8in?

At 130kg and 5ft 8in (173cm), your BMI is approximately 28.7, which falls in the overweight category according to NHS guidelines. Use our BMI calculator above for your exact height.

How much weight would I need to lose to reach a healthy BMI at 130kg current weight?

This depends on your height. If you're 5ft 8in, losing around 10–15kg would bring you into the healthy weight range. Your GP or a weight management specialist can advise on safe, sustainable targets.

Does BMI account for muscle mass?

No, BMI doesn't distinguish between muscle and fat. Athletes and people with high muscle mass may have a higher BMI but low body fat. Your GP can assess your overall health using waist circumference and other measurements alongside BMI.

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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