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's 63kg in Stone?
Converting 63kg to stone is straightforward using the standard UK weight conversion: 63kg equals 9 stone and 12.3 pounds (or approximately 9st 12lbs). In the UK, we commonly use stone and pounds for body weight, even though kilograms are the standard in clinical settings. Understanding how to convert between these measurements is useful when reading NHS health information, fitness guidance, or weight management resources. Our free weight converter above makes this calculation instant, and you can also use our BMI calculator to see where 63kg sits in terms of your personal health context.
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.
Understanding 63kg in UK Health Context
At 63kg, your health category depends on your height and age. Using our free BMI calculator, you can check your personal BMI to understand whether this weight falls into the healthy weight range for you according to NHS guidelines. For reference, at an average adult height of around 1.65m (5ft 5in), 63kg would give a BMI of approximately 23.1, which falls comfortably within the healthy weight range of 18.5–24.9. However, BMI is a screening tool only — it does not account for muscle mass, bone density, or where fat is stored. The NHS also recommends checking your waist circumference as part of assessing your weight and health risk. For women, a waist circumference over 80cm indicates increased health risk; for men, over 94cm indicates increased risk.
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.
Converting 63kg Using the UK Weight Converter
The conversion formula: 63kg ÷ 6.35029 = approximately 9 stone 12.3lbs. You can verify this calculation using our weight converter tool on this page, which handles the maths instantly. If you prefer to work in pounds only, 63kg is equivalent to 138.9lbs. Many UK fitness and nutrition resources use both kg and stone, so being able to convert between them helps you compare your weight to NHS guidance, diet programmes, and health recommendations with confidence.
- 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 63kg considered a healthy weight in the UK?
At 63kg, your weight falls into the healthy range for many adult heights — but it depends on your specific height. Use the free BMI calculator on this page to check your personal BMI against NHS healthy weight guidelines (18.5–24.9). Your GP can also advise you on whether your weight is healthy for your individual circumstances, including age, muscle mass, and any existing health conditions.
What's the exact conversion of 63kg to stone and pounds?
63kg converts to 9 stone and 12.3 pounds (9st 12lbs). The conversion formula is: kg ÷ 6.35029 = stone. You can use our free weight converter above to check this instantly for any weight value.
How does 63kg compare to average UK adult weight?
According to ONS data, the average UK adult woman weighs approximately 71.6kg (11st 3lbs) and the average UK adult man weighs approximately 85.7kg (13st 7lbs). So 63kg is below the current UK average, though healthy weight varies widely depending on height, age, and individual health factors.
Should I use kg or stone for weight management?
Both are fine — use whichever feels most natural to you. The NHS uses kg in clinical settings, but many UK people prefer stone for personal tracking. Our free progress tracker allows you to log your weight in either unit, so you can track whichever way suits you best.
What's a healthy weight range for someone who is 5ft 5in (165cm)?
For someone 165cm tall, the healthy BMI range (18.5–24.9) corresponds to approximately 50–68kg (7st 12lbs to 10st 10lbs). At 63kg, you'd be in the middle of this healthy range. For personalised advice about your ideal weight, your GP can discuss your individual health needs.
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.