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
104 Kg In Lbs — Is This a Healthy Weight?
104 kg converts to 229.3 pounds or 16 stone 3 lbs in UK measurements. Whether this weight is healthy depends entirely on your height, age, and body composition. For some adults, 104 kg is a healthy weight; for others, it falls in the overweight or obese category according to NHS guidelines. Use our free BMI calculator above to check your personal BMI instantly—this will tell you whether 104 kg is healthy for your specific height. If you're outside the healthy range, the guidance below explains what that means and what options are available.
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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 by Height at 104 Kg
Whether 104 kg is healthy depends on your height. The NHS defines a healthy BMI as between 18.5 and 24.9, which translates to different weight ranges at different heights. Use the weight converter on this page to switch between metric and imperial measurements as needed.
- At 160 cm (5ft 3in): BMI of 40.6 — obese category. Healthy range is 47–63 kg.
- At 175 cm (5ft 9in): BMI of 34 — obese category (Class I). Healthy range is 56–76 kg.
- At 190 cm (6ft 3in): BMI of 28.8 — overweight category. Healthy range is 67–88 kg.
These examples show that 104 kg sits in the overweight or obese range for average UK heights, though context matters. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds, so the healthy weight range would be smaller.
Clinically BackedWeight Loss
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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 and Next Steps
If your BMI at 104 kg falls outside the healthy range, it doesn't mean you're unwell—many factors influence weight including genetics, medication, and medical conditions. The NHS recommends losing weight gradually at around 0.5–1 kg per week for sustainable results. Waist measurement also matters: men should aim for under 94 cm (37 inches), women under 80 cm (31.5 inches). Speak to your GP about your personal health goals. They can assess your overall health, not just your weight, and discuss options including lifestyle changes, structured weight management programmes, or in some cases, prescription support.
- 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 104 kg in pounds?
104 kg equals 229.3 pounds, or 16 stone 3 lbs in UK imperial measurements. To convert kilograms to stone, divide by 6.35. For pounds, multiply kilograms by 2.20462.
Is 104 kg overweight or obese?
This depends on your height. At average UK heights (165–180 cm), 104 kg typically falls in the overweight or obese category. Use the BMI calculator on this page to check your specific BMI based on your height.
What's the healthy weight range for someone 175 cm tall at 104 kg?
At 175 cm, a healthy weight range is 56–76 kg according to NHS guidelines. At 104 kg, the BMI would be 34, which falls in the obese (Class I) category. A GP can discuss safe, sustainable approaches to weight management.
How quickly can I lose weight safely from 104 kg?
The NHS recommends losing 0.5–1 kg per week. This means losing 26–52 kg per year, achieved through a moderate calorie deficit combined with increased physical activity. Faster loss may involve muscle loss and is harder to sustain.
Should I use a weight loss injection if I'm 104 kg?
Prescription weight loss injections like Mounjaro and Wegovy are available for adults with a BMI of 30 or above, or 27+ with weight-related health conditions. Eligibility is assessed individually by a GP or licensed prescriber following a clinical assessment. They're used alongside lifestyle changes, not instead of them.
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.