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 104kg in Pounds?
104 kilograms converts to approximately 229.4 pounds (229 lbs). However, whether this weight is healthy for you depends entirely on your height. Using our free weight converter above, you can switch between kg, stone, and pounds instantly. More importantly, your BMI—which accounts for both weight and height—determines where you fall in NHS health categories. Let's explore what 104kg means for your health at different heights.
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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.
104kg BMI at Different Heights
Your BMI tells you whether 104kg is a healthy weight for your specific height. Here's what 104kg gives you at common UK heights:
- 5ft 2in (157cm): BMI 42.2 — Severely obese (Class III)
- 5ft 6in (168cm): BMI 37.5 — Obese (Class II)
- 5ft 10in (178cm): BMI 33.0 — Obese (Class I)
- 6ft (183cm): BMI 31.0 — Obese (Class I)
- 6ft 3in (190cm): BMI 28.7 — Overweight
Use our free BMI calculator on this page to find your exact BMI by entering your height. Even small height differences significantly change how your BMI is calculated and which NHS category you fall into.
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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.
Understanding NHS Weight Categories & BMI Limits
The NHS uses these official BMI categories for adults: healthy weight (18.5–24.9), overweight (25.0–29.9), obese class I (30.0–34.9), obese class II (35.0–39.9), and severely obese (40.0+). If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, lower thresholds apply due to higher health risks at the same BMI. BMI is a useful screening tool, but it has limitations—it doesn't distinguish between muscle and fat, and waist measurement also matters. Your GP can provide personalised advice about what 104kg means for your individual health and discuss whether weight management support would benefit you.
- 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 104kg in stone and pounds?
104kg equals 16 stone 5.4 pounds (16st 5.4lbs) in UK measurements. Use the weight converter on this page to switch between kilograms, stone, and pounds instantly for any weight.
Is 104kg overweight or obese?
At 104kg, your category depends on your height. At 5ft 6in, it's obese (BMI 37.5). At 6ft, it's obese (BMI 31.0). Use our BMI calculator to find your exact category based on your height.
What's the healthy weight range at my height if I'm 104kg now?
Healthy weight depends on height. At 5ft 6in, healthy weight is 50–68kg. At 6ft, it's 56–76kg. The BMI calculator shows your healthy range instantly when you enter your height.
How much would I need to lose to reach a healthy BMI from 104kg?
The amount varies by height. At 5ft 6in, you'd need to reach below 69kg. At 6ft, below 77kg. A GP or weight management service can discuss realistic, sustainable targets for you.
Does 104kg in pounds tell me if I have health risks?
Weight alone doesn't determine health risk—height matters for BMI, and waist measurement also matters. Your GP can assess your overall health profile and discuss any weight-related health concerns. ```
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.