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
What is 117 Kilos in Stone — And What's Your BMI?
117 kilograms is approximately 18 stone 6 pounds in UK measurements. However, what matters for your health is not just your weight in stone — it's your BMI, which depends on both your weight and height. Using our free BMI calculator above, you can discover exactly where 117kg puts you on the NHS health scale. Let's explore what 117kg means for your BMI across different heights and what the NHS categories tell us about health risk.
10,000+ calculations today · NHS-aligned thresholds · 100% free
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.
117kg BMI at Different Heights
To convert kilograms to stone, divide by 6.35. At 117kg, here's what your BMI looks like across common UK heights:
- 160cm (5ft 3in): BMI 45.7 — Severely obese (Class III)
- 165cm (5ft 5in): BMI 43.1 — Severely obese (Class III)
- 170cm (5ft 7in): BMI 40.6 — Severely obese (Class III)
- 175cm (5ft 9in): BMI 38.2 — Obese (Class II)
- 180cm (5ft 11in): BMI 36.0 — Obese (Class II)
- 185cm (6ft 1in): BMI 34.2 — Obese (Class I)
BMI increases as height decreases — a person at 160cm and 117kg faces higher health risks than someone at 185cm with the same weight. Use our weight converter to switch between kg and stone and pounds instantly.
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.
Understanding BMI Categories & What They Mean
The NHS uses standardised BMI categories to assess health risk. At 117kg, most heights fall into the obese category, which means increased risk of type 2 diabetes, heart disease, high blood pressure, and sleep problems. However, BMI has limitations — it doesn't distinguish between muscle and fat. An athletic person with significant muscle mass may have a high BMI but low body fat. For a complete health picture, your GP may also measure your waist circumference (healthy limit for men: under 102cm; for women: under 88cm). If you're concerned about your weight and health, your GP can provide personalised guidance based on your individual circumstances, family history, and any existing health conditions.
- 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 117kg in stone and pounds?
117kg equals approximately 18 stone 6 pounds. To convert kilos to stone, divide the kilogram weight by 6.35. The stone-to-kilogram conversion works the other way — multiply stone by 6.35 to get kilograms. Try our free weight converter above to switch between all three measurements (kg, stone, pounds) instantly.
Is a BMI of 36–46 (at 117kg) considered obese?
Yes. According to NHS guidelines, BMI 30–34.9 is Class I obesity, 35–39.9 is Class II, and 40+ is Class III (severely obese). At 117kg, your BMI will fall into one of these ranges depending on your height. BMI is a screening tool — it's useful but doesn't account for muscle mass or where fat is stored. Your GP can assess your individual health risk more accurately.
What health risks are associated with a BMI at this level?
A BMI in the obese range (which includes most heights at 117kg) increases risk of type 2 diabetes, cardiovascular disease, high blood pressure, sleep apnoea, osteoarthritis, and certain cancers. Even a 5–10% weight reduction can meaningfully improve these risks. Your GP can advise on safe, sustainable weight management options tailored to your health.
How can I check my exact BMI at 117kg?
Use our free BMI calculator on this page — enter your weight in kg or stone and your height in cm or feet/inches, and you'll get your exact BMI and NHS category instantly. You can also try different heights to see how BMI changes, which helps you understand how weight and height interact.
Can I lose weight safely from 117kg?
The NHS recommends losing weight at a rate of 0.5–1kg (1–2 lbs) per week for sustainable results. This typically requires a calorie deficit of around 500 calories per day alongside increased physical activity. Your GP can discuss weight management options — including lifestyle changes, structured programmes, or prescription treatments if appropriate — based on your health needs and BMI category.
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.