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
63 Kg In Stone And Pounds — Healthy Weight Guide
If you weigh 63 kg, that's 9 stone and 13 pounds in UK measurements. But whether this is a healthy weight depends entirely on your height. The same weight can be healthy for one person and overweight for another. Our free BMI calculator above will tell you instantly whether 63 kg falls in a healthy range for you — just enter your height and weight. This guide explains how NHS weight ranges work and what to do if you're concerned about your health.
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 Height Affects If 63 Kg Is Healthy
At 63 kg, your health depends on your height. Here's how the same weight looks at three different heights:
- If you're 160 cm (5ft 3in): BMI = 24.6 — this falls in the healthy weight range (18.5–24.9)
- If you're 170 cm (5ft 7in): BMI = 21.8 — healthy weight range
- If you're 180 cm (5ft 11in): BMI = 19.4 — healthy weight range
To convert 63 kg to stone, divide by 6.35: that's 9 stone and 13 pounds. Use our weight converter to switch between kilograms to stone instantly. The NHS uses BMI as the primary screening tool for healthy weight. A healthy BMI is 18.5–24.9 for most UK adults. However, for adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower thresholds starting at 18.5–22.9. Calculate your personal BMI now using the calculator on this page to see where you stand.
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 Guidance And What To Do Next
If you've calculated your BMI and it falls outside the healthy range, remember that BMI is a screening tool — it doesn't account for muscle mass, where fat is stored, or your overall fitness. Your waist measurement also matters: the NHS recommends keeping waist circumference below 94 cm (37 inches) for men and 80 cm (31.5 inches) for women to reduce health risks.
If you're concerned about your weight or health, speak to your GP. They can assess your individual circumstances, discuss any weight-related health conditions, and suggest appropriate support — whether that's dietary advice, exercise recommendations, or referral to specialist weight management services. Weight is affected by many factors including genetics, medications, and medical conditions.
- 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 kg in stone and pounds?
63 kg equals 9 stone and 13 pounds (or approximately 9st 13lbs). To convert kilograms to stone, divide the kg figure by 6.35. You can also use our free weight converter on this page for instant conversions between kg, stone, and pounds.
Is 63 kg a healthy weight?
It depends on your height. Use the BMI calculator above to enter your height and weight. A healthy BMI is 18.5–24.9 for most UK adults (or 18.5–22.9 for South Asian, Chinese, Black African, or Black Caribbean adults). Your GP can also advise on whether your weight is healthy for you personally.
What should my healthy weight be?
Your healthy weight range depends on your height. For example, at 170 cm (5ft 7in), a healthy weight is approximately 53–71 kg (8st 5lbs to 11st 2lbs). Use our BMI calculator to find your personal healthy range, or ask your GP for guidance tailored to your health profile.
What if my BMI is outside the healthy range?
If your BMI is outside 18.5–24.9, speak to your GP. They can assess your individual health, discuss any underlying conditions, and recommend appropriate support — which might include lifestyle advice, dietary guidance, or referral to weight management services available on the NHS.
Does weight alone determine health?
No. BMI is a useful screening tool but has limitations — it doesn't distinguish between muscle and fat. Waist circumference, fitness level, diet, sleep, and stress all affect health. Your GP can give you a comprehensive assessment and personalised advice about your health risks.
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.