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
Is 68.9kg a Healthy Weight?
68.9kg is equivalent to 10 stone 10.8 lbs in UK measurements. Whether this weight is healthy depends entirely on your height, age, and overall health. Using our free weight converter above, you can easily switch between kilograms and stone. To understand if 68.9kg is right for you, we'll show you how height affects whether this weight falls into the NHS healthy range, and what to do if you want to check your personal health status.
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.
Healthy Weight Ranges for Different Heights
At 68.9kg, whether you're at a healthy weight depends on your height. The NHS uses BMI (Body Mass Index) to assess healthy weight ranges, calculated by dividing weight in kilograms by height in metres squared. A healthy BMI is between 18.5 and 24.9 according to NHS guidelines.
Here are three examples showing how 68.9kg sits at different heights:
- At 160cm (5ft 3in): BMI = 26.9 (overweight range). Healthy weight would be 47–64kg.
- At 170cm (5ft 7in): BMI = 23.8 (healthy range). Healthy weight would be 54–72kg.
- At 180cm (5ft 11in): BMI = 21.2 (healthy range). Healthy weight would be 60–81kg.
Use our free BMI calculator above to determine your personal BMI and see exactly where 68.9kg places you.
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 Guidance and Next Steps
The NHS recommends healthy weight as a BMI between 18.5 and 24.9. If you're outside this range, waist measurement also matters — excess fat around the middle increases health risks independently of BMI. For men, over 102cm (40in) waist indicates high risk; for women, over 88cm (34.5in).
If 68.9kg isn't in your healthy range, remember that sustainable weight change happens gradually at 0.5–1kg per week. Consider speaking with your GP for personalised guidance. Our free progress tracker can help you log any changes over time. Small lifestyle adjustments — like increased activity and balanced nutrition — often make a real difference without drastic measures.
- 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 68.9kg in stone and pounds?
68.9kg converts to 10 stone 10.8 pounds (or approximately 10st 11lbs) using UK measurements. You can instantly convert between kilograms and stone using the weight converter on this page.
Is 68.9kg overweight or healthy?
It depends on your height. At 170cm it's healthy (BMI 23.8); at 160cm it's overweight (BMI 26.9); at 180cm it's healthy (BMI 21.2). Calculate your personal BMI above to see your status.
What's the healthy weight range for my height?
The NHS healthy weight range uses BMI 18.5–24.9. Your range depends on your exact height. For example, at 170cm the range is 54–72kg; at 180cm it's 60–81kg. Use our BMI calculator for your precise range.
What should I do if I'm outside the healthy weight range?
If you're outside the healthy range, speak with your GP for personalised advice. Safe weight loss is 0.5–1kg per week. Track progress using our free progress tracker and consider NHS weight management resources available in your area.
Does waist measurement matter as much as weight?
Yes. The NHS recommends checking both BMI and waist circumference. Excess abdominal fat increases health risks even at a "healthy" BMI. For men, a waist over 102cm and for women over 88cm indicates increased health risk.
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.