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 104 Kg in Lbs and What Does It Mean for Your BMI?
104 kilograms converts to approximately 229.3 pounds (lbs). However, your BMI—which the NHS uses to assess health risk—depends on your height, not weight alone. At 104 kg, your BMI ranges from approximately 19.5 at 5ft 9in (175cm) to 26.7 at 5ft 4in (163cm). Use our free BMI calculator above to find your precise BMI and discover which NHS health category you fall into based on your specific height and weight.
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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.
BMI at 104 Kg Across Different Heights
Your BMI at 104 kg varies significantly depending on your height. Here's what the NHS categories mean:
- 5ft 4in (163cm): BMI 26.7 — Overweight (25.0–29.9)
- 5ft 6in (168cm): BMI 24.9 — Healthy weight (18.5–24.9)
- 5ft 8in (173cm): BMI 23.2 — Healthy weight
- 5ft 10in (178cm): BMI 21.7 — Healthy weight
- 6ft 0in (183cm): BMI 20.3 — Healthy weight
- 6ft 2in (188cm): BMI 19.2 — Healthy weight
For adults of South Asian, Chinese, Black African, or Caribbean heritage, the NHS recommends lower BMI thresholds—a healthy range is 18.5–22.9, so the overweight category begins at BMI 23. If this applies to you, discuss your personal health targets with your GP.
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.
Understanding BMI Limitations and Your Health
BMI is a useful screening tool, but it has important limitations. BMI does not distinguish between muscle and fat—athletes may have a high BMI despite low body fat. It also doesn't account for where fat is stored; waist circumference is equally important. The NHS recommends measuring your waist: for men, over 94cm (37in) signals increased risk; for women, over 80cm (31.5in) does the same. At 104 kg, your health depends on your overall fitness, diet, activity level, and any weight-related conditions like high blood pressure or prediabetes. Your GP can provide personalised guidance based on your individual health picture.
- 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 approximately 229.3 pounds (lbs). You can convert between kg, stone, and lbs instantly using the free weight converter on this page, which also provides your BMI context at different heights.
Is 104 kg a healthy weight?
It depends on your height. At 104 kg, you could have a BMI anywhere from 19.2 (healthy) to 26.7 (overweight) depending on how tall you are. Use our free BMI calculator above to find your precise category and NHS classification based on your specific height.
What is 104 kg in stone and pounds?
104 kg converts to approximately 16 stone 5 pounds. The weight converter on this page allows you to switch instantly between metric (kg) and imperial (stone and lbs) measurements, which many UK adults prefer for tracking weight.
How do I know if 104 kg is right for my height?
The NHS provides a healthy weight range for each height. Calculate your BMI using the calculator on this page, then discuss your results with your GP. They can assess your individual health, considering fitness level, medical history, and weight-related conditions.
What does the NHS say about BMI categories?
The NHS defines healthy weight as BMI 18.5–24.9, overweight as 25.0–29.9, and obese as 30.0+. For South Asian and other heritage groups, thresholds are lower. Your GP can explain which category applies to you and what it means for your health.
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.