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 17.6 kg in stones?
17.6 kilograms is equal to 2 stone and 11.6 pounds. This weight is significantly below the healthy weight range for most UK adults and may indicate being underweight. Understanding your weight in both metric and imperial measurements is useful for health tracking and NHS consultations. Using our free weight converter, you can easily switch between kg, stone, and pounds for any weight value you're monitoring.
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 17.6 kg to stones and pounds
To convert kilograms to stone, divide the kg value by 6.35029. For 17.6 kg: 17.6 ÷ 6.35029 = 2.77 stone. To express this as stone and pounds, multiply the decimal by 14 (since 1 stone = 14 pounds): 0.77 × 14 = 10.78 lbs, giving you 2 stone 11.6 lbs.
The standard conversion formula for metric to imperial weight is: kg × 2.20462 = pounds. So 17.6 kg × 2.20462 = 38.76 lbs, which equals 2 stone 10.76 lbs (accounting for rounding). This kg to stone conversion is the basis for all weight calculations across UK health services and personal health tracking.
- Quick conversion: 17.6 kg = 2.77 stone = 38.76 lbs
- For precise stone and pounds: divide decimal stone by 14
- Always round to nearest 0.1 lbs for practical use
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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.
17.6 kg at different UK heights — BMI context
At different heights, 17.6 kg produces very different BMI results. For example, at 150 cm (4ft 11in), 17.6 kg gives a BMI of 12.4 — well below healthy weight. At 160 cm (5ft 3in), BMI is 10.9. At 170 cm (5ft 7in), BMI is 9.6. Calculate your personal BMI using our free BMI calculator above to see whether 17.6 kg falls in the healthy weight range for your height.
A weight of 17.6 kg is appropriate only for young children and may indicate underweight status in teenagers and adults. If you're concerned about being underweight, consult your GP to assess your individual health needs and nutritional status.
Q1: Is 17.6 kg a healthy weight for adults? A1: No. For nearly all UK adults, 17.6 kg is dangerously underweight. This weight is typical for a young child aged 5–7. If you weigh 17.6 kg as an adult or adolescent, speak to your GP to discuss your health and nutritional requirements. Being significantly underweight carries health risks including muscle loss, weakened immunity, and nutritional deficiencies. Q2: What is 17.6 kg in pounds? A2: 17.6 kg equals 38.76 pounds exactly. In stone and pounds, this is 2 stone 10.76 lbs, commonly rounded to 2 stone 11 lbs. Use the weight converter on this page to check conversions for any weight value in seconds. Q3: How does 17.6 kg compare to average UK weights? A3: The average UK adult woman weighs around 71.6 kg and the average man around 85.7 kg. At 17.6 kg, you would be approximately 60–65% lighter than the average UK adult. This weight is normal only for children approximately 5–7 years old. Q4: What BMI is 17.6 kg? A4: BMI depends on height. At 160 cm, 17.6 kg gives a BMI of 10.9 (significantly underweight). At 170 cm, BMI is 9.6. Enter your height into our free BMI calculator above to find your personal BMI and see how it compares to NHS healthy weight ranges. Q5: Should I be concerned if I weigh 17.6 kg? A5: If you're an adult or teenager weighing 17.6 kg, speak to your GP urgently. Being severely underweight can indicate an eating disorder, medical condition, or nutritional problem. Your GP can assess your health and refer you to appropriate support services if needed.- 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 BMI and how is it calculated?
BMI (Body Mass Index) is calculated by dividing your weight in kilograms by your height in metres squared. It's the standard screening tool used by the NHS to assess whether adults are a healthy weight.
Is BMI accurate for everyone?
BMI is a useful screening tool but doesn't account for muscle mass, bone density, or body fat distribution. Athletes may have a high BMI without excess fat. The NHS recommends using BMI alongside waist circumference for a more complete picture.
What are GLP-1 medications like Mounjaro and Wegovy?
GLP-1 receptor agonists are prescription medications that mimic gut hormones to reduce appetite and help with weight loss. Mounjaro (tirzepatide) and Wegovy (semaglutide) are the two most widely used for weight management in the UK.
Am I eligible for GLP-1 weight loss medication in the UK?
Generally, you need a BMI of 30+ (obese) or 27+ with a weight-related health condition. You must be 18 or over. Use our BMI calculator to check.
What is the difference between Mounjaro and Wegovy?
Mounjaro (tirzepatide) is a dual GIP/GLP-1 agonist with up to 22.5% weight loss. Wegovy (semaglutide) is GLP-1-only with up to 15-17% weight loss. Both are weekly injections.
Is this website free to use?
Yes, 100% free. No sign-up required. All tools work instantly in your browser and no personal data is stored on our servers.
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.