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?
59kg is equal to 9 stone and 4.3 pounds in UK measurements. If you're tracking your weight in kilograms but prefer to understand it in stone and pounds — the traditional UK system — this conversion is straightforward. For an adult, a weight of 59kg typically falls within the healthy weight range according to NHS guidelines, though this depends on your height and individual health factors. Use our free weight converter above to check conversions for any weight instantly, and explore your personal BMI using our BMI calculator to understand where your weight sits on NHS health thresholds.
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 Healthy Weight — NHS Context
A weight of 59kg is generally considered healthy for UK adults, but this depends entirely on your height. According to NHS guidelines, a healthy BMI falls between 18.5 and 24.9. Whether 59kg is healthy for you depends on how tall you are.
- At 160cm (5ft 3in): 59kg gives a BMI of approximately 23 — healthy weight range
- At 165cm (5ft 5in): 59kg gives a BMI of approximately 21.6 — healthy weight range
- At 170cm (5ft 7in): 59kg gives a BMI of approximately 20.4 — healthy weight range
- At 175cm (5ft 9in): 59kg gives a BMI of approximately 19.2 — healthy weight range
For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends slightly lower thresholds (18.5 to 22.9), so check this applies to you. Calculate your exact BMI using the free BMI calculator on this page — it takes just seconds and gives you personalised NHS guidance.
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.
UK Tools and Resources for Weight Management
Understanding your weight in both kg and stone helps you track progress and communicate with your GP or healthcare team. Our free weight converter above lets you instantly switch between kilograms, stone, and pounds — no calculation needed.
If you're interested in understanding your overall health picture, our BMI calculator provides instant NHS-aligned guidance based on your height and weight. For those exploring weight loss options in the UK, our GLP-1 weight loss calculator can help you understand potential outcomes with prescription weight management medications. Your GP can provide personalised advice about what 59kg means for your individual health and whether any support would be beneficial.
- 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. According to NHS guidelines, 59kg is healthy if your BMI falls between 18.5 and 24.9. Use our free BMI calculator above — it takes your height into account and gives you instant personalised guidance aligned with NHS thresholds. If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, slightly lower BMI ranges apply.
How do I convert 59kg to stone and pounds?
59kg equals 9 stone and 4.3 pounds. The conversion formula is: divide kg by 6.35029 to get stone, or multiply kg by 2.20462 to get pounds. Use our free weight converter on this page — it calculates any weight conversion instantly without you needing to do the maths.
What's the healthy weight range for my height?
Healthy weight ranges depend on your height. For example, at 170cm (5ft 7in), the healthy range is approximately 53–72kg (8st 5lbs to 11st 5lbs). Use our BMI calculator above — enter your height and it will show your personal healthy weight range aligned with NHS guidance.
How does 59kg compare to the average UK adult weight?
The average UK adult woman weighs approximately 71.6kg (11st 3lbs) and the average man weighs approximately 85.7kg (13st 7lbs). At 59kg, you're below the UK average, which doesn't necessarily mean anything — healthy weight varies greatly based on height, age, genetics, and muscle mass.
Should I contact my GP about my weight?
If you have concerns about your weight or health, it's always worth discussing with your GP. They can assess your individual circumstances, including height, age, medical history, and any symptoms. Your GP can also discuss weight management options if needed, including referral to specialist NHS weight management services if appropriate.
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.