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
Free tracker included with every download this week
Is 122 kg Healthy? Conversion and UK Health Guide
122 kilograms equals 19 stone and 3 pounds (19st 3lbs) in UK measurements. Whether this weight is healthy depends entirely on your height, age, and build. Using the standard kg to stone conversion, we can help you understand where your weight falls on the NHS health scale. Use our free BMI calculator above to see your personal BMI and healthy weight range — it takes just 10 seconds and gives you a clear picture of where you stand healthwise.
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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.
Healthy Weight Ranges By Height
At 122kg, your healthy weight status depends on your height. Here's how this weight converts across three different heights:
- If you're 165cm (5ft 5in): 122kg gives a BMI of 40.2 — this falls into the severely obese category. Healthy weight range: 50–68kg (7st 12lbs to 10st 10lbs).
- If you're 175cm (5ft 9in): 122kg gives a BMI of 39.8 — severely obese. Healthy weight range: 56–78kg (8st 12lbs to 12st 4lbs).
- If you're 185cm (6ft 1in): 122kg gives a BMI of 35.7 — obese (Class II). Healthy weight range: 63–87kg (9st 13lbs to 13st 10lbs).
These ranges reflect NHS guidance for adults. Convert your weight using our weight converter to check your exact metrics in kilos, stone, and pounds.
Clinically BackedWeight Loss
No appointments. No waiting rooms. Just care — from a UK-regulated online pharmacy.
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.
What The NHS Says About 122kg
The NHS considers a BMI of 30 or above as obese, requiring lifestyle changes and possible medical support. At 122kg, most adults will fall into the overweight or obese category unless they are exceptionally tall or very muscular. Your GP can assess your individual health beyond BMI alone — waist measurement matters too. Men with a waist over 102cm (40in) and women over 88cm (34.5in) face increased health risks even at lower weights. If you're above a healthy weight range, your GP can discuss sustainable weight loss options, including lifestyle changes, dietary support, or in some cases, prescription weight loss medication following proper clinical assessment.
- 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 122kg in stone and pounds?
122kg equals 19 stone and 3 pounds (19st 3lbs). To convert kilograms to stone, divide the kilogram value by 6.35029. This is the standard metric to imperial weight conversion used across the UK.
Is 122kg a healthy weight?
This depends on your height. At 122kg, most adults will have a BMI in the obese range. Use our free BMI calculator above to enter your height and see your exact BMI category and healthy weight range for your individual circumstances.
What if I'm 175cm and weigh 122kg?
At 175cm (5ft 9in) and 122kg, your BMI would be approximately 39.8, which is Class II obesity according to NHS guidelines. Your healthy weight range at this height would be 56–78kg. Your GP can discuss safe weight loss options.
Does waist measurement matter if I weigh 122kg?
Yes — where fat is stored is important. Even at lower weights, a large waist circumference increases health risks. Men over 102cm waist and women over 88cm waist face higher cardiovascular risks. Your GP can assess your overall health profile beyond just weight.
What are my options if I'm 122kg and want to lose weight?
The NHS recommends discussing sustainable approaches with your GP. This might include dietary changes, increased physical activity, behaviour support programmes, or referral to specialist weight management services. In some cases, prescription weight loss medication may be considered following clinical assessment by a healthcare professional.
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.