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
Fun Weight Loss Chart — Make Your Progress Visible and Motivating
A fun weight loss chart is one of the most effective ways to stay motivated and track real progress towards your health goals. Rather than obsessing over the scales daily, a visual chart helps you celebrate milestones, identify patterns, and maintain momentum over weeks and months. Whether you're managing your weight through lifestyle changes, working with your GP on prescription weight loss medication, or combining exercise and diet, seeing your progress mapped out makes the journey feel achievable and rewarding.
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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.
Why a Visual Weight Loss Chart Works
Research shows that tracking progress visually significantly improves long-term weight management success. A fun chart transforms abstract numbers into a concrete story of your health improvements. Rather than focusing solely on weight loss, a well-designed chart can include:
- Weekly or monthly weight milestones — breaking your goal into smaller, achievable targets
- BMI progress — showing your movement from overweight to healthy weight range using NHS categories
- Non-scale victories — energy levels, clothes fit, fitness improvements, and how you feel
- Medication milestones — if using prescription weight loss options like GLP-1 weight loss injections, tracking dose increases and adjustment periods
- Habit tracking — water intake, exercise sessions, and meal prep days to reinforce positive behaviours
Our free progress tracker tool on this page allows you to log your weight weekly and visualise your trajectory — making it easy to spot trends and celebrate progress over time. Visual tracking also helps your GP understand how you're responding if you're accessing weight management through NHS services or prescription weight loss medication.
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.
Building Your Own Motivating Chart
Creating a fun chart doesn't require expensive apps or complex spreadsheets. Start by calculating your current BMI using our free BMI calculator above and identify your healthy weight target range according to NHS guidelines. For example, if you're 1.73m tall and weigh 90kg, your healthy weight range is approximately 55–74kg — divide this into achievable milestones every 5 or 10kg.
Print a blank monthly or yearly chart, use a spreadsheet, or try our free progress tracker. Colour-code different zones (overweight, healthy weight) or use stickers and rewards for hitting targets. Include the date you started any weight loss medication uk treatment, diet changes, or fitness plans — this context helps you understand what's working. Review monthly, adjust your approach if needed, and share progress with your GP or healthcare team to ensure you're on track safely.
- 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 should I include on a weight loss chart?
Include your current weight (in kg or stone), target weight, current BMI, healthy weight range for your height, weekly or monthly checkpoints, and notes about any lifestyle changes or medication you're using. Add non-scale wins like mood, energy, or fitness improvements. Use our BMI calculator and weight converter above to establish your baseline and convert between units.
How often should I weigh myself and update my chart?
NHS guidance suggests weighing yourself once weekly at the same time of day — typically in the morning before eating. Daily weighing can be demoralising because weight naturally fluctuates. If using prescription weight loss medication like Wegovy or Mounjaro, you may weigh in at your prescriber's clinic; use our progress tracker to log these readings for your own motivation chart.
Can a weight loss chart help if I'm using GLP-1 medication?
Yes. A chart helps visualise results from weight management uk medication like semaglutide (Wegovy). Clinical trials showed average weight loss of around 15% of body weight, but individual results vary greatly. Charting your progress week by week helps you see the cumulative effect and stay motivated through the adjustment period when your prescriber increases your dose.
What if my weight stays the same or goes up one week?
Single-week variations are normal — weight fluctuates due to hormones, hydration, salt intake, and muscle gain from exercise. Look at the overall trend over 4–6 weeks rather than obsessing over individual weigh-ins. If you notice no progress over a month, discuss this with your GP, as they may suggest adjusting your diet, exercise, or medication dose.
How does tracking weight loss connect to BMI improvement?
Use our free BMI calculator above to see how your weight loss translates to BMI reduction. For example, losing 5kg might drop your BMI by 2 points — bringing you closer to the healthy weight range of 18.5–24.9 for adults in the UK. Tracking BMI alongside weight shows you're moving towards health milestones that matter for your GP.
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.