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 59kg In Stone?
59 kilograms is equivalent to 9 stone 4.5 pounds (9st 4.5lbs) in UK measurements. This conversion uses the standard formula: 1 stone equals 6.35029 kg. If you're tracking your weight using UK health guidance, understanding how to convert between metric and imperial measurements is useful for comparing your weight against NHS health thresholds. Our free weight converter above lets you instantly switch between kg, stone, and pounds, making it easy to understand your weight in whichever measurement system you prefer.
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 Does 59kg Compare To Healthy Weight?
Whether 59kg is a healthy weight depends on your height and individual circumstances. Use our free BMI calculator above to check your personal BMI instantly — this gives you a health-based assessment rather than just a number. According to NHS guidelines, a healthy BMI ranges from 18.5 to 24.9. For example, at an average height of 163cm (5ft 4in), 59kg gives a BMI of approximately 22.2, which falls comfortably within the healthy weight range. However, BMI has limitations — it doesn't account for muscle mass or where fat is stored. Your GP can give you personalised guidance about what weight is right for your individual health.
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.
59kg In Context — UK Health Information
For NHS weight management purposes, 59kg is considered moderate weight for most adult heights. The healthy weight range varies significantly based on height: at 160cm (5ft 3in), 59kg may be in the overweight category; at 173cm (5ft 8in), it falls within the healthy weight range. If you're interested in weight management or understanding your health status, the NHS recommends considering not just weight but also waist circumference and overall fitness. Our weight converter and BMI calculator work together to give you a complete picture of your weight in UK measurements and how it relates to NHS health guidance.
- 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 for an adult?
It depends on your height. At average heights (160–175cm), 59kg is typically in the healthy weight range according to NHS BMI guidelines. Use our free BMI calculator above to check your personal BMI — this accounts for your specific height and gives you a health-based assessment rather than relying on weight alone.
How do I convert 59kg to stone and pounds?
59kg equals 9 stone 4.5 pounds (9st 4.5lbs). The conversion formula is: kg ÷ 6.35029 = stone. Use our weight converter on this page to instantly switch between kg, stone, and pounds — it's helpful for comparing your weight against UK health information and NHS guidance.
What's the BMI of someone weighing 59kg?
BMI at 59kg depends on height. At 163cm (5ft 4in), the BMI is approximately 22.2 (healthy weight range). At 150cm (4ft 11in), it's approximately 26.2 (overweight range). Calculate your personal BMI using our free BMI calculator above to see where you fall on NHS health thresholds.
Is 59kg considered overweight or underweight in the UK?
59kg is neither inherently overweight nor underweight — it depends entirely on your height and body composition. The NHS uses BMI (which combines weight and height) rather than weight alone. At most average heights, 59kg sits in the healthy weight range, but your GP can provide personalised guidance based on your individual circumstances.
Should I aim to lose or gain weight if I'm 59kg?
Weight goals are individual and depend on your height, health conditions, and fitness level. If you're concerned about your weight, speak to your GP or a registered dietitian who can assess your personal circumstances. They may recommend lifestyle changes, or in some cases, prescription weight management support alongside diet and activity.
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.