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
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What is 124kg in Stone?
124kg is equal to 19 stone 8.5 pounds (or 19st 8.5lbs) in UK measurements. Converting kilograms to stone is straightforward using the standard conversion formula: divide the kilogram value by 6.35029. Whether you're checking your weight, understanding a health measurement, or simply need to convert metric to imperial weight, knowing how to convert kg to stone conversion is useful. Use our free weight converter above to switch between measurements instantly, or follow the simple formula below to calculate it yourself.
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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.
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.
How to Convert 124kg to Stone — Formula and Table
To convert 124kg to stone, use this simple formula: kg ÷ 6.35029 = stone. So 124 ÷ 6.35029 = 19.54 stone, which breaks down as 19 stone and 7.6 pounds (or approximately 19st 8.5lbs when rounded).
Here's a reference table showing 124kg alongside nearby values to help you understand the kilogram to stone conversion range:
- 120kg = 18st 13lbs
- 121kg = 19st 1.6lbs
- 122kg = 19st 3.3lbs
- 123kg = 19st 5.1lbs
- 124kg = 19st 8.5lbs
- 125kg = 19st 10.2lbs
- 126kg = 19st 12lbs
- 127kg = 20st 0.8lbs
- 128kg = 20st 2.5lbs
Clinically BackedWeight Loss
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How It Works
Three simple steps to understand your weight and take action.
Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.
If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.
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.
124kg BMI and Healthy Weight Context
At 124kg, your BMI depends on your height. For example, at an average UK male height of 175cm (5ft 9in), a weight of 124kg gives a BMI of approximately 40.4, which falls into the severely obese category according to NHS guidelines. At an average UK female height of 162cm (5ft 4in), the same weight results in a BMI of around 47, also in the severely obese range.
Calculate your personal BMI using our free BMI calculator above to understand your individual health context. For comparison, a healthy BMI range sits between 18.5 and 24.9. Even a modest weight loss of 5–10% of body weight can bring significant health benefits, including improved blood pressure, better blood sugar control, and reduced strain on joints.
- 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
- 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
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.
| Feature | Mounjaro | Wegovy |
|---|---|---|
| Drug class | Dual GIP/GLP-1 agonist | GLP-1 agonist |
| Active ingredient | Tirzepatide | Semaglutide |
| Avg. weight loss | 15–22.5% | 12–17% |
| Key trial | SURMOUNT-1 (2022) | STEP 1 (2021) |
| Max dose | 15 mg weekly | 2.4 mg weekly |
| Escalation period | 20–32 weeks | 16–20 weeks |
| Administration | Weekly injection (pen) | Weekly injection (pen) |
| NHS availability | Private prescription only | NHS & private |
| Approx. private cost | £150–£250/month | £150–£300/month |
| Common side effects | Nausea, diarrhoea, constipation | Nausea, 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.
- BMI of 30 or above (obese)
- Age 18 or over
- No contraindicated conditions
- Committed to lifestyle changes
- 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 124kg in stone and pounds?
124kg equals 19 stone 8.5 pounds (19st 8.5lbs). To calculate this yourself, divide 124 by 6.35029 to get 19.54 stone, then multiply the decimal (0.54) by 14 to convert to pounds.
How do I convert kg to stone easily?
Divide the kilogram amount by 6.35029 to get stone. For example: 124 ÷ 6.35029 = 19.54 stone. You can also use our free weight converter above for gradual improvement in both directions.
Is 124kg a healthy weight?
Whether 124kg is healthy depends on your height, age, sex, and muscle mass. Use our free BMI calculator to check your personal BMI. Generally, at average UK heights, 124kg falls into higher weight ranges. Speak to your GP for personalised advice about your individual health.
What's the formula for converting kilograms to stone?
The formula is simple: weight in kg ÷ 6.35029 = weight in stone. You can also multiply by 0.157473 (the conversion factor). For 124kg: 124 × 0.157473 = 19.53 stone.
What is 124kg in metric to imperial terms?
124kg (metric) converts to 19st 8.5lbs (imperial/UK). If you need just pounds, 124kg equals approximately 273.4 lbs. Our weight converter tool above handles both conversions instantly.
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.