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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 77 Kilos in Stones and Pounds?

77 kilograms is equal to 12 stone and 2 pounds (or 12st 2lbs). If you're converting weight in stone and pounds, this is a straightforward metric to imperial conversion using the standard kilogram to stone formula. Whether you're checking your weight against NHS guidelines or simply need to understand your weight in UK measurements, our free weight converter above can help you switch between kg, stone, and lbs instantly. At this weight, your health context depends on your height and overall fitness — let's explore what 77kg means for your body mass index and wellbeing.

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.

77kg to Stone Conversion Formula

To convert 77 kilograms to stones and pounds, divide the kilogram value by 6.35029. 77 kg ÷ 6.35029 = 12.13 stone, which equals 12 stone and 2 pounds (rounded). The conversion uses the exact formula: 1 stone = 6.35029 kg, and 1 pound = 0.453592 kg.

Here's how the maths works: 77 kg converts to 12.13 stone. The whole number (12) is the stone value. The decimal (0.13) multiplies by 14 (pounds per stone) to give you 1.82 pounds, which rounds to 2 pounds. This metric to imperial weight conversion is the standard used across UK health services and everyday measurements.

  • 77 kg = 12st 2lbs (rounded)
  • 77 kg = 169.8 lbs (pounds only)
  • Formula: kg ÷ 6.35029 = stone
  • Reverse: stone × 6.35029 = kg
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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.

Nearby Weight Conversions

If your weight is slightly different from 77kg, here are conversions for nearby values to help you find your exact weight in stone and pounds:

  • 75 kg = 11st 11lbs
  • 76 kg = 11st 13lbs
  • 77 kg = 12st 2lbs
  • 78 kg = 12st 4lbs
  • 79 kg = 12st 6lbs

Use our free BMI calculator on this page to see how 77kg relates to a healthy weight range at your specific height. At average UK heights (men around 175cm, women around 162cm), 77kg typically falls into the overweight category — though your personal health context depends on your individual measurements and fitness level. Your GP can provide personalised guidance.

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 77kg in stones and pounds?

77kg equals 12 stone and 2 pounds (12st 2lbs). To convert, divide 77 by 6.35029 to get 12.13 stone. The decimal converts to pounds by multiplying by 14, giving approximately 2 pounds. This is the standard UK weight conversion used by the NHS and health services.

Is 77kg a healthy weight?

Whether 77kg is healthy depends on your height and body composition. At 175cm (average UK male height), 77kg gives a BMI of approximately 25.6 (overweight). At 162cm (average UK female height), it gives a BMI of about 29.3 (overweight). Use our free BMI calculator to check your personal BMI and healthy weight range.

How do I convert stones and pounds back to kilograms?

To convert 12 stone 2 pounds back to kg: multiply 12 by 6.35029 (= 76.20 kg), then multiply 2 by 0.453592 (= 0.91 kg). Add them together: 76.20 + 0.91 = 77.11 kg. Alternatively, use our weight converter tool above for instant conversions.

What's the difference between stone and pounds?

Stone and pounds are both imperial weight units used in the UK. One stone equals exactly 14 pounds. Stone is often used for body weight in everyday UK life, whilst pounds are used for more precise measurements. 77kg converts to 12 stone and 2 pounds — meaning 12 complete stone plus an additional 2 pounds.

How can I track 77kg against my weight loss goals?

Log and track your weight journey using our free progress tracker. It helps you monitor changes from 77kg towards your target weight, showing progress over time. Combined with the BMI calculator and healthy weight guidance, you can set realistic goals and track whether you're moving towards the healthy weight range for your height.

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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