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's 107kg in Stone? BMI and Health Context
107kg converts to 16 stone 12 pounds (16st 12lbs) in UK measurements. However, your BMI at this weight depends entirely on your height—it could range from around 24 (healthy weight) to 35+ (obese). To convert kilograms to stone accurately and understand what your weight means for your health, you need to know your height. Use our free BMI calculator above to enter both your weight and height, and you'll instantly see your personal BMI category according to NHS guidelines. This gives you the full health picture, not just the conversion alone.
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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.
107kg BMI at Different Heights
Here are six example BMIs for someone weighing 107kg at different heights, using the metric to imperial weight context:
- At 160cm (5ft 3in): BMI 41.8 — Severely obese (Class III) — significantly above the healthy 18.5–24.9 range
- At 170cm (5ft 7in): BMI 37.0 — Obese (Class II) — above the healthy weight threshold
- At 175cm (5ft 9in): BMI 34.9 — Obese (Class I) — just at the boundary of Class II
- At 180cm (5ft 11in): BMI 32.9 — Obese (Class I) — still in the obese category
- At 185cm (6ft 1in): BMI 31.2 — Obese (Class I)
- At 190cm (6ft 3in): BMI 29.6 — Overweight — just below the 30 threshold for obesity
At taller heights, 107kg may fall into the overweight rather than obese category. Your GP can give personalised health advice based on your individual height and any weight-related health conditions.
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 NHS BMI Categories and Limitations
The NHS defines BMI categories as: healthy weight (18.5–24.9), overweight (25–29.9), obese Class I (30–34.9), obese Class II (35–39.9), and severely obese (40+). At 107kg, most adults would fall into the obese range unless they are very tall. However, BMI has important limitations—it doesn't distinguish between muscle and fat, so athletes may have high BMI but low body fat. It also doesn't account for where fat is stored or ethnicity-related health risks. For South Asian, Chinese, Black African, or Caribbean adults, lower BMI thresholds apply. Try our free weight converter to see your weight in different units, and use the progress tracker to monitor changes over time if you're working towards a healthier weight.
- 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 107kg overweight or obese?
At 107kg, your category depends on height. At average adult heights (170–180cm), 107kg typically falls into the obese range (BMI 30–35). At taller heights (190cm+), it may be overweight (BMI 25–29.9). Use our BMI calculator above with your exact height to see your personal category.
What does 107kg weigh in stone and pounds?
107kg equals 16 stone and 12 pounds (16st 12lbs) exactly. To convert kilograms to stone, divide by 6.35. For other weight conversions between kg, stone, and lbs, use our free weight converter on this page.
How much weight would I need to lose to reach a healthy BMI from 107kg?
This depends on your height. At 175cm, a healthy BMI (18.5–24.9) requires losing roughly 25–35kg (bringing you to 72–82kg). Your GP or a weight management service can give you a personalised target based on your specific circumstances.
Can I get help losing weight if I weigh 107kg?
Yes. The NHS offers weight management support through your GP, including dietitian services, behavioural support, and in some cases prescription weight loss treatment (if you meet eligibility criteria). Private options including online prescribing are also available. Your GP can discuss what's appropriate for you.
Does 107kg mean I definitely have health problems?
Not necessarily, but being overweight or obese at this level does increase health risks. Risks vary by height, fitness level, family history, and whether you have conditions like high blood pressure or type 2 diabetes. Your GP can assess your individual risk and recommend next steps. ```
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.