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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118kg in Stones and Pounds
118kg is equal to 18 stone and 8.1 pounds in UK measurements. If you're tracking your weight or comparing your measurements to NHS health guidelines, understanding how kilos convert to stone and lbs is essential for UK adults. Use our free weight converter above to switch between metric and imperial measurements instantly, or follow the conversion formula below to calculate it yourself.
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.
How to Convert 118kg to Stones and Pounds
To convert kilograms to stone and pounds, you can use the standard conversion formula: divide the kilogram amount by 6.35029 to get stones, then convert any decimal remainder to pounds by multiplying by 14.
For 118kg: 118 ÷ 6.35029 = 18.588 stones. The whole number (18) is your stone value. The decimal (0.588) × 14 = 8.1 pounds. Therefore, 118kg = 18 stone 8.1lbs.
Alternatively, use the direct kg to pounds method: 118kg × 2.20462 = 260.1 lbs, then divide by 14 to get stones and pounds.
See the nearby weights below to compare:
- 110kg = 17st 5.2lbs
- 113kg = 17st 11.6lbs
- 115kg = 18st 1.6lbs
- 118kg = 18st 8.1lbs
- 120kg = 18st 13.2lbs
- 123kg = 19st 5.6lbs
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.
BMI and Health Context at 118kg
At 118kg, your BMI depends on your height. For an average UK adult male height of 175cm (5ft 9in), a weight of 118kg gives a BMI of approximately 38.5, which falls into the obese (Class II) category according to NHS guidelines. For an average female height of 162cm (5ft 4in), the same weight produces a BMI of around 44.8 (severely obese Class III).
Use our free BMI calculator on this page to check your personal BMI and discover your healthy weight range. The NHS recommends a healthy BMI between 18.5 and 24.9. Even modest weight loss of 5–10% of body weight can significantly improve health outcomes including blood pressure, blood sugar control, and joint health. Your GP can provide personalised guidance on weight management appropriate for 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.
Is 118kg overweight or obese according to NHS guidelines?
At 118kg, your weight category depends on your height. For most UK adults, this weight falls into the obese range (BMI 30+). Use our BMI calculator to check your specific BMI. If concerned, discuss your weight with your GP, who can assess your individual health risk factors and advise on appropriate management.
What is the exact conversion formula for kg to stone?
To convert kilograms to stone, divide by 6.35029. For example, 118kg ÷ 6.35029 = 18.588 stones. The whole number is your stone value (18), and multiply the decimal (0.588) by 14 to get pounds (8.1lbs). Try our free weight converter above for instant conversions.
What is a healthy weight range for my height at 118kg?
Healthy weight depends on height. For someone 175cm tall, a healthy BMI range (18.5–24.9) corresponds to approximately 56–75kg. For someone 162cm tall, it's roughly 49–65kg. Use our BMI calculator to discover your personalised healthy weight range based on your actual height.
How many lbs is 118kg?
118kg equals approximately 260.1 pounds (260 lbs). To convert kilograms to pounds, multiply by 2.20462. In UK stone and pound format, 260 lbs = 18 stone 8 pounds. Our weight converter makes these calculations instant.
Can I lose weight sustainably from 118kg?
Yes. The NHS recommends losing 0.5–1kg per week through a combination of reduced calorie intake and increased physical activity. Even a clinically studied weight loss (approximately 6kg) can improve blood pressure and blood sugar. Discuss a personalised plan with your GP or a registered dietitian for safe, sustainable weight management.
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.