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 63.3 Kg in Stone and What BMI Does It Give?
63.3 kg is approximately 9 stone 13 pounds (9st 13lbs) or 139.5 lbs. Your BMI at this weight depends entirely on your height. Use our free BMI calculator above to find your exact BMI, or check the examples below to see where this weight falls across different heights and which NHS health category applies to you.
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.
63.3 Kg BMI at Different Heights
Your BMI tells you whether a weight is healthy for your height. At 63.3 kg, here's what your BMI would be at common UK heights:
- 5ft 0in (152cm): BMI of 27.4 — overweight category
- 5ft 2in (158cm): BMI of 25.3 — overweight category
- 5ft 4in (163cm): BMI of 23.8 — healthy weight category
- 5ft 6in (168cm): BMI of 22.4 — healthy weight category
- 5ft 8in (173cm): BMI of 21.2 — healthy weight category
- 5ft 10in (178cm): BMI of 20.0 — healthy weight category
Use our weight converter to check 63.3kg in stone and pounds instantly, then calculate your personal BMI with our free tool to see your exact health category.
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.
NHS BMI Categories and What They Mean
According to NHS guidelines, BMI categories are:
- Below 18.5 = underweight
- 18.5–24.9 = healthy weight
- 25.0–29.9 = overweight
- 30.0–34.9 = obese (Class I)
At 63.3 kg, your BMI classification depends on your height. If you're taller (5ft 6in or above), this weight likely falls in the healthy range. If you're shorter, it may be in the overweight category. Remember: BMI doesn't account for muscle mass or where fat is stored — your GP can give you personal health advice based on 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.
What is 63.3 kg in stone and pounds?
63.3 kg equals 9 stone 13 pounds (9st 13lbs). To convert kilograms to stone, divide by 6.35029. This weight is typical for many UK adults and sits in a reasonable range depending on your height and frame size.
Is 63.3 kg a healthy weight?
This depends on your height. At 63.3 kg, you may be in the healthy weight range if you're 5ft 4in or taller. If you're shorter, you may be in the overweight category. Use our free BMI calculator above to find your exact BMI and NHS health category.
What does BMI tell me about my weight?
BMI is a screening tool that compares your weight to your height. It helps identify whether you're in a healthy range for your height. However, BMI has limitations — it doesn't distinguish between muscle and fat, so athletes may have a high BMI despite being fit.
Should I aim to weigh 63.3 kg?
Your ideal weight depends on your height, age, sex, and muscle mass — not a single number. NHS guidelines recommend aiming for a BMI between 18.5 and 24.9. Your GP can advise you on a healthy weight range specific to your health and circumstances.
How do I know if 63.3 kg is right for me?
Calculate your BMI using the free tool on this page, check which NHS category you fall into, and speak to your GP. They can assess your overall health, not just your weight, and help you set realistic, sustainable health goals.
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.