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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117 Kg — Understanding Your Weight in UK Context
117 kg is approximately 18 stone 5 pounds — a weight that falls into the obese category for most UK adults. Understanding what this weight means for your health, how it compares to NHS guidelines, and what healthy weight management options are available is an important first step. Your individual health picture depends on your height, age, and overall fitness, so using our free BMI calculator and weight converter can help you get a clearer picture of where you stand against NHS health guidance.
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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.
What Does 117 Kg Mean for UK Health?
At 117 kg, your health context depends significantly on your height. Using the NHS BMI categories, a person of average UK female height (161.6 cm / 5ft 3in) would have a BMI of approximately 45, placing them in the severely obese category. For an average UK male height (175.3 cm / 5ft 9in), a BMI of around 38 falls within the obese (Class II) category. Both these BMI ranges carry increased health risks including type 2 diabetes, cardiovascular disease, and joint problems.
For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds, meaning health risks may already be present at this weight. This is because these groups face higher metabolic risk at the same BMI as European populations. Converting 117 kg to your personal healthy weight range requires knowing your exact height — use our free weight converter and BMI calculator above to find your individual targets based on NHS guidance.
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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.
NHS Guidance and Weight Management Options
The NHS recommends a healthy weight for most adults falls into a BMI range of 18.5 to 24.9. At 117 kg, achieving a healthy weight would typically mean losing between 20–50 kg depending on your height — a significant but achievable goal. The NHS supports gradual weight loss at a sustainable rate of 0.5 to 1 kg per week, which means reaching a healthy weight range could take between 6 months and 2 years depending on your individual circumstances.
If you're struggling to lose weight through diet and exercise alone, prescription weight management support is available in the UK. Access your GP first to discuss your options and be referred to a specialist weight management service (Tier 3), where medications may be considered. You can also use our free weight loss calculator to explore potential weight loss timelines with different approaches.
- 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 117 kg in stone and pounds?
117 kg converts to 18 stone 5 pounds (or approximately 18.4 stone). You can use our free weight converter above to convert between kg, stone, and pounds instantly for accurate conversions.
What BMI is 117 kg?
Your BMI at 117 kg depends on your height. For a person 175 cm tall, 117 kg gives a BMI of around 38 (obese). Use our free BMI calculator on this page to enter your exact height and get your personal BMI and NHS category.
Is 117 kg overweight or obese in the UK?
At 117 kg, most UK adults would be classified as obese according to NHS guidelines, though the exact category depends on height. Those of South Asian or Black African heritage may face higher health risks at this weight, so NHS guidance recommends earlier intervention.
What is the healthy weight range for someone who weighs 117 kg?
For someone 175 cm tall, a healthy BMI range (18.5–24.9) means a healthy weight of approximately 55–76 kg. Your personal healthy range depends on your height — calculate it using our free BMI calculator for your exact measurements.
What weight loss support is available on the NHS for 117 kg?
Your GP can refer you to an NHS specialist weight management service (Tier 3), where you'll receive support including behaviour change programmes and, if appropriate, prescription weight management medication. Access varies by region, so ask your GP about local services.
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.