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 Kg in Stone and What Does It Mean for Your Health?
117 kg is equivalent to 18 stone and 5 pounds (18st 5lbs) — a weight that falls into the obese category for most UK adults. Understanding what your weight means for your health, alongside your height and BMI, is the first step towards making informed health decisions. Use our free BMI calculator and weight converter above to explore your personal health context instantly, then consider what next steps might be right for you. This UK health guide explains the numbers and what they mean.
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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.
Converting 117 Kg to Stone and Other UK Measurements
117 kg converts to:
- 18 stone 5 pounds (18st 5lbs) exactly
- 257.9 pounds (lbs)
To convert 117kg to stone using standard UK weight conversions: divide 117 by 6.35029. This gives 18.43 stone — which equals 18 stone (the whole number) plus 0.43 × 14 pounds = 5 pounds, so 18st 5lbs. You can also use our free weight converter on this page to switch instantly between kg, stone, and pounds. UK adults commonly use stone and pounds for body weight, even though the NHS records clinical measurements in kilograms. Having both conversions helps you compare your weight to NHS health guidance, clothing sizes, and fitness goals — all of which may reference different units.
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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.
BMI at 117 Kg — What the NHS Says
Your BMI at 117 kg depends entirely on your height. For example, at 5ft 8in (173 cm), a weight of 117 kg gives a BMI of approximately 39.1 — which falls into the obese category (Class II) according to NHS guidelines. At 5ft 10in (178 cm), the same weight gives a BMI of around 36.8. The NHS healthy weight range for an adult is a BMI of 18.5–24.9. Our free BMI calculator above will show you your exact BMI instantly when you enter your height and weight. Remember that BMI is a useful screening tool but has limitations — it does not distinguish between muscle and fat, so athletes may have a higher BMI despite low body fat. Your GP can give you personalised health advice based on your individual circumstances.
- 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 is 18 stone 5 pounds (18st 5lbs). To convert: divide kg by 6.35029 to get stone, or multiply by 2.20462 to get pounds (257.9 lbs). Our weight converter above lets you switch between all three units instantly.
Is 117 kg overweight or obese?
At 117 kg, your weight category depends on your height and BMI. For most UK adults, 117 kg falls into the obese range. Use our free BMI calculator above to check your exact BMI — your GP can then discuss what this means for your individual health.
What is the healthy weight range for my height if I weigh 117 kg?
The healthy weight range depends on your height. At 5ft 8in (173 cm), healthy weight is roughly 55–74 kg. At 6ft (183 cm), it's about 61–82 kg. Use our BMI calculator to find the exact healthy weight range for your specific height.
How much weight would I need to lose to reach a healthy BMI from 117 kg?
This depends on your height. At 5ft 8in, you'd aim for under 74 kg (a loss of about 43 kg). At 5ft 10in, aim for under 80 kg (a loss of about 37 kg). Your GP can discuss realistic, sustainable weight loss goals with you based on your health.
Can weight loss medication like Wegovy or Mounjaro help me lose weight from 117 kg?
Prescription weight loss injections may be an option if you meet NHS eligibility criteria. These are prescription-only medications requiring clinical assessment by a GP or specialist. Our GLP-1 weight loss calculator can help you estimate potential results, but a prescriber will assess whether treatment is right for your individual situation.
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.