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 98kg in Stone?
98 kilograms equals 15 stone and 6.4 pounds in UK measurements. If you're checking your weight or tracking your health, understanding how to convert between metric and imperial units is useful for comparing yourself to NHS health guidelines. This guide explains the conversion, what it means for your health, and how to use it alongside personalised health advice from your GP.
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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 98kg to Stone and Pounds
To convert 98kg to stone, divide by 6.35029 (the exact conversion factor). This gives you 15 stone and 6.4 pounds. You can also express this as approximately 15.4 stone or 216 pounds if you prefer a single unit.
- 98kg ÷ 6.35029 = 15.44 stone
- 15 stone (whole units) = 95.25kg
- The remaining 2.75kg = 0.4 stone, which equals 6.4 pounds
Use our free weight converter on this page to instantly switch between kg, stone, and pounds. This is particularly helpful if you're comparing your weight to NHS health guidance, which typically uses both metric and imperial units depending on context.
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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.
Where Does 98kg Sit on the Health Scale?
At 98kg, your health context depends on your height. For example, at an average UK adult height of 1.70m (5ft 7in), a weight of 98kg gives a BMI of approximately 33.9, which falls into the obese category (Class I) according to NHS guidelines. However, at a taller height such as 1.80m (5ft 11in), the same weight gives a BMI of around 30.2, which is still in the obese range but at the lower end.
Use our free BMI calculator above to find your personal BMI and healthy weight range for your specific height. This gives you a clearer picture of what 98kg means for your individual health.
- 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 98kg overweight for an adult?
Whether 98kg is overweight depends on your height. According to NHS guidelines, a healthy BMI is 18.5–24.9. At 1.70m, 98kg gives a BMI of 33.9 (obese); at 1.80m, it's approximately 30.2 (still obese). Calculate your personal BMI using our BMI calculator to find your health category.
What is the healthy weight range for someone who is 98kg?
The healthy weight range varies by height. For example, at 1.70m, a healthy weight is roughly 53–72kg; at 1.80m, it's approximately 60–81kg. Your GP can advise on a realistic and sustainable target for your individual circumstances, taking into account your health and fitness level.
How can I convert 98kg to stone quickly?
Divide 98 by 6.35 to get approximately 15.4 stone, which equals 15 stone and 6.4 pounds. Our free weight converter on this page does this instantly — just enter your weight and select the units you want.
Does 98kg mean I need to lose weight?
This depends on your height and overall health. For many adults, a BMI above 30 (which 98kg typically results in) suggests weight management could benefit your health. Your GP can give personalised advice based on your individual health profile, not just your weight alone.
Can prescription weight loss medication help if I'm 98kg?
In the UK, prescription weight loss medications like Mounjaro (tirzepatide) or Wegovy (semaglutide) may be available if you have a BMI of 30 or above, or 27 or above with weight-related health conditions. These are prescription-only and require clinical assessment by a healthcare professional. Our GLP-1 weight loss calculator can show projected outcomes if you're considering this option.
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.