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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What Is 90 Kg In Pounds And Stone?
90 kilograms is equal to 14 stone and 3 pounds (14st 3lbs), or approximately 198 pounds. If you're used to working with kilos in stone and pounds conversion, use the weight converter on this page to switch between metric and imperial measurements instantly. This weight falls into different health categories depending on your height, age, and sex. Read on for BMI context at common UK heights, plus guidance on healthy weight ranges.
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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.
90 Kg To Stone And Pounds Conversion Formula
To convert 90 kilograms to stone and pounds, divide the kilogram figure by 6.35029 to get stone, then multiply the decimal remainder by 14 to get additional pounds:
- 90 kg ÷ 6.35029 = 14.17 stone
- 0.17 × 14 = 3 pounds
- Result: 14 stone 3 pounds (14st 3lbs)
For pounds only, multiply kilograms by 2.20462: 90 × 2.20462 = 198.4 lbs. This kilogram to stone conversion is the standard method used across UK health services and weight management programmes. See the nearby conversion table below for quick reference values, or use our free weight converter above to calculate any weight instantly between kg, stone, and pounds.
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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.
90 Kg BMI And Healthy Weight Context
At 90 kg, your BMI depends on your height. For example, at 175 cm (5ft 9in — average UK male height), a weight of 90 kg gives a BMI of approximately 29.4, which falls in the overweight range (25–29.9). At 165 cm (5ft 5in — average UK female height), the same weight gives a BMI of about 33, which falls in the obese category (30+). Use our free BMI calculator above to find your personal BMI and healthy weight range. The NHS recommends a healthy BMI of 18.5–24.9 for most adults. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, lower thresholds apply due to higher health risks at lower BMI levels.
- 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 90 kg overweight?
Whether 90 kg is overweight depends on your height. At average UK heights, 90 kg often falls into the overweight or obese range according to BMI. For instance, at 5ft 9in, 90 kg gives a BMI of 29.4 (overweight). At 5ft 5in, it gives a BMI of 33 (obese). Your GP or a healthcare professional can discuss what this means for your individual health.
What's the exact conversion of 90 kg to pounds?
90 kilograms equals approximately 198.4 pounds (lbs). To convert, multiply kilograms by 2.20462. This is the standard conversion used across the UK, though many people prefer to express weight in stone and pounds rather than just pounds alone.
How does 90 kg compare to a healthy weight?
A healthy weight depends on your height and age. For a person 175 cm tall (5ft 9in), the healthy weight range is roughly 55–76 kg. At 90 kg, you'd be above this range. For someone 165 cm tall (5ft 5in), the healthy range is approximately 50–68 kg. Again, 90 kg exceeds this. Use our free BMI calculator to find your personalised healthy weight range.
What is the stone and pounds breakdown for 90 kg?
90 kilograms converts to 14 stone and 3 pounds (14st 3lbs). To break this down: 1 stone = 6.35 kg, so 90 kg ÷ 6.35 = 14.17 stone. The decimal 0.17 × 14 pounds per stone = 3 pounds. This is the standard kg to stone conversion used in the UK.
Can I use this weight in my GP consultations?
Yes. The NHS uses kilograms for clinical records, but it's helpful to know your weight in both kilograms and stone and pounds since many UK patients are more familiar with stone. Your GP will have your weight recorded, and you can discuss what it means for your health and any concerns you may have about your weight.
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.