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 59kg in Stone?
59kg converts to 9 stone 4.2 pounds (or 9st 4lbs). If you're checking this weight against UK health guidelines, a weight of 59kg puts most adults in the healthy weight range according to NHS standards, though your BMI depends on your height. Use our free weight converter above to see this figure in different units, and our BMI calculator to find out what 59kg means for your personal health profile.
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.
59kg in Stone — UK Health Context
To convert 59kg to stone using the standard conversion, divide 59 by 6.35029, which gives 9 stone 4.2 pounds. In the UK, we typically express weight as stone and pounds combined, so 59kg is best described as 9st 4lbs.
According to NHS guidance, whether 59kg is a healthy weight depends entirely on your height. For an adult of average height (around 1.7m or 5ft 7in), a weight of 59kg would fall within the healthy BMI range of 18.5 to 24.9. However, if you're taller or shorter, your BMI category will differ. This is why height matters — two people at 59kg can have very different BMI results.
- 59kg for someone 5ft 3in tall = BMI approximately 23.4 (healthy weight)
- 59kg for someone 6ft tall = BMI approximately 20.2 (healthy weight)
- 59kg for someone 5ft tall = BMI approximately 25.8 (overweight)
Use our free BMI calculator on this page to check your personal BMI for your exact height and weight.
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.
Health Guidance and Next Steps
If 59kg reflects your current weight and you're concerned about your health, a good starting point is to calculate your BMI and discuss the result with your GP. The NHS encourages all adults to maintain a healthy weight range, but healthy weight isn't just about a number — it's about feeling well, having energy, and reducing your risk of weight-related conditions like type 2 diabetes and cardiovascular disease.
If you're tracking your weight journey, our free progress tracker can help you log changes over time and spot trends. Whether you're aiming to reach a target weight or simply want to monitor your health, knowing your weight in both metric and imperial units (kg and stone) helps you engage with UK health information more easily.
- 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 59kg a healthy weight?
It depends on your height. At 59kg, you'll have a healthy BMI if you're around 5ft 5in to 5ft 10in tall. Our BMI calculator on this page will tell you instantly whether 59kg is healthy for your exact height according to NHS guidelines.
How do I convert 59kg to stone and pounds?
Divide 59kg by 6.35029 to get stone. 59kg = 9 stone 4.2 pounds (9st 4lbs). Use our free weight converter above to switch between kg, stone, and pounds instantly without working it out yourself.
What does my BMI mean if I weigh 59kg?
Your BMI at 59kg depends entirely on your height. Use our free BMI calculator to enter your height and weight — it will show you whether you fall into the healthy weight range (BMI 18.5–24.9) according to NHS standards.
Should I lose weight if I weigh 59kg?
Only your GP can advise on your personal health needs. If your BMI is in the healthy range and you feel well, you may not need to change your weight. If you have concerns, discuss them with your GP who can assess your overall health.
How accurate is BMI as a health measure?
BMI is a useful screening tool but has limitations — it doesn't account for muscle mass, bone density, or where fat is stored. Your GP can help assess your health using BMI alongside other measures like waist circumference and blood pressure.
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.