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 112kg in Stone and What's the BMI?
112kg converts to 17 stone 8 pounds in UK measurements. However, your BMI (and health category) depends entirely on your height — the same weight gives very different BMI values for taller and shorter adults. Below we show BMI examples at different heights, what each means according to NHS guidelines, and how to use our free BMI calculator to find your personal BMI instantly.
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.
112kg BMI at Different Heights
At 112kg, your BMI varies significantly depending on height. Here are examples using the kg to stone conversion combined with BMI calculation:
- At 5ft 4in (163cm): BMI = 38.5 → Obese (Class II)
- At 5ft 8in (173cm): BMI = 34.1 → Obese (Class I)
- At 5ft 10in (178cm): BMI = 31.3 → Obese (Class I)
- At 6ft 0in (183cm): BMI = 29.0 → Overweight
- At 6ft 2in (188cm): BMI = 27.2 → Overweight
Use our free BMI calculator above to find your exact BMI by entering your height and weight. This gives you your personal NHS health category.
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.
NHS BMI Categories and What They Mean
The NHS classifies BMI ranges to help adults understand health risk. At 112kg, most adults fall into the Overweight or Obese category depending on height. A BMI of 25–29.9 is Overweight, 30–34.9 is Obese (Class I), and 35–39.9 is Obese (Class II). However, BMI has limitations — it doesn't account for muscle mass, where fat is stored, or individual health factors. Your GP can provide personalised guidance. For adults of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds, so eligibility for weight management support may differ.
- 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 112kg in stone and pounds?
112kg converts to 17 stone 8 pounds using the standard kilogram to stone conversion. To calculate: divide 112 by 6.35029 to get stone, or multiply by 2.20462 to get pounds. Use our free weight converter above for instant conversion between metric and imperial measurements.
Is 112kg overweight or obese?
This depends on your height. At 112kg, most adults fall into the Overweight or Obese category according to NHS guidelines. A person 6ft tall would be Overweight (BMI 29), while someone 5ft 4in would be Obese Class II (BMI 38.5). Your GP can assess your individual health based on BMI, waist circumference, and other factors.
What is a healthy weight if I'm 112kg?
A healthy weight depends on your height and the NHS BMI range (18.5–24.9). For example, a person 5ft 8in tall has a healthy weight range of 8st 10lbs to 11st 10lbs (55–74kg). Use our BMI calculator to find the healthy weight range for your specific height.
Can I lose weight from 112kg?
Yes. The NHS recommends losing 0.5–1kg per week through a combination of reduced-calorie diet and increased physical activity. Even a 5–clinically studied weight loss (6–11kg) can improve health markers. Your GP can discuss personalised weight management options, which may include lifestyle support or, if eligible, prescription weight loss treatment.
Does BMI account for muscle mass?
No — BMI doesn't distinguish between muscle and fat. Athletes or very muscular individuals may have a high BMI despite low body fat. Waist circumference and overall body composition are also important. Your GP can assess your health holistically beyond BMI alone.
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.