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
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58 Kg In Stone And Pounds — Healthy Weight Guide
58 kilograms converts to 9 stone and 2 pounds — but whether this is a healthy weight depends entirely on your height. The NHS uses Body Mass Index (BMI) to assess healthy weight ranges, which takes both weight and height into account. At the same weight, a taller person will have a lower BMI than a shorter person. Use our free BMI calculator above to check your personal BMI instantly, or read on to see healthy weight ranges for different heights and what the NHS recommends.
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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.
Healthy Weight Ranges At 58 Kg For Different Heights
At 58 kg, whether you're in a healthy weight range depends on your height. Here are three real-world examples using the standard kg to stone conversion:
- At 160 cm (5ft 3in): BMI = 22.7 — this falls in the healthy weight range (18.5–24.9). Your weight in stone is 9 stone 2 pounds, which is within NHS guidelines.
- At 168 cm (5ft 6in): BMI = 20.6 — this is also in the healthy weight range. A lower BMI at the same weight because you're taller.
- At 152 cm (5ft 0in): BMI = 25.1 — this just exceeds the healthy range and enters overweight territory, even though the weight in stone and pounds is identical (9st 2lbs).
This shows why height matters when assessing healthy weight. The NHS recommends a BMI of 18.5–24.9 for adults. For South Asian, Chinese, Black African, and Black Caribbean adults, lower thresholds apply (18.5–22.9). Convert your own measurements using the weight converter on this page to find your precise BMI.
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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, Waist Measurement, And Next Steps
Beyond BMI, the NHS also recommends measuring your waist circumference, as where fat is stored matters for health. For men, a waist over 94 cm (37 inches) indicates increased health risk; over 102 cm (40 inches) indicates high risk. For women, the thresholds are 80 cm (31.5 inches) and 88 cm (34.5 inches) respectively.
If your BMI or waist measurement suggests you're outside a healthy range, don't worry — small changes make a real difference. The NHS recommends losing weight at a rate of 0.5–1 kg per week for sustainable results. If you're struggling, your GP can refer you to local weight management support, including behaviour change programmes and specialist services. Track your progress with our free progress tracker to stay motivated.
- 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 58 kg considered a good weight?
It depends on your height. At 58kg, your BMI could range from about 20 (healthy) to 25 (overweight) depending on whether you're 170cm or 152cm tall. Use our BMI calculator above with your actual height to find out. The NHS healthy weight range is BMI 18.5–24.9 for most adults.
What is 58 kg in stone and pounds?
58 kilograms equals 9 stone and 2 pounds (9st 2lbs) exactly. To convert kilograms to stone yourself, divide by 6.35. Our weight converter on this page lets you convert between kg, stone, and pounds instantly.
What should I weigh if I'm 165 cm tall?
At 165 cm, a healthy weight range is roughly 50–68 kg (7st 12lbs to 10st 10lbs), based on a BMI of 18.5–24.9. At 58 kg, you'd have a BMI of about 21.3, which is in the healthy range. Your GP can advise on what's right for your individual circumstances.
How do I know if my weight is healthy for my height?
Calculate your BMI using your weight and height — the NHS considers 18.5–24.9 healthy for most adults. Our free BMI calculator on this page does this automatically. You can also check your waist circumference; the NHS has specific thresholds for men and women that indicate cardiovascular risk.
What if my BMI shows I'm overweight at this weight?
If you're 58 kg and your BMI is above 25, discuss this with your GP. They can assess your overall health, not just BMI. Small changes like increasing activity and adjusting diet can help. Your GP may refer you to a weight management service or behaviour change programme suited to your needs.
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.