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
Weight Chart in Stones and Pounds — UK Guide
A weight chart in stones and pounds helps UK adults understand where their current weight falls and what a healthy weight range looks like. Unlike most of Europe, the UK commonly uses stone and pounds for body weight, making a dedicated chart essential for health management. This guide shows you how to read a weight chart, what NHS guidance says about healthy weight ranges, and how to find your personal healthy weight band using our free weight converter and BMI calculator.
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.
Understanding Your Weight in UK Measurements
The UK weight chart typically shows weight in stone and pounds, where 1 stone equals exactly 14 pounds. Most adults fall between 8 stone and 18 stone, depending on height and frame size. To read a weight chart, first locate your height on the left, then find your current weight across the top. Where they meet shows your approximate BMI (Body Mass Index).
According to NHS guidelines, a healthy BMI is between 18.5 and 24.9. Using our free BMI calculator above, you can instantly see where your weight sits on the NHS scale. For example, an adult of 5ft 8in (173cm) with a healthy weight range falls between approximately 8 stone 10 pounds and 11 stone 10 pounds. The chart also shows overweight (BMI 25–29.9) and obese (BMI 30+) ranges, though it's important to remember that BMI has limitations — it doesn't distinguish between muscle and fat.
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.
Using the Chart for Your Health Goals
Once you've found your position on a weight chart, compare it to the healthy weight band for your height. If you fall within the healthy range, the focus shifts to maintenance. If you're above the healthy range, even a 5–10% reduction in body weight can bring meaningful health benefits, including lower blood pressure and improved blood sugar control.
Use our free weight converter to switch between stones, pounds, and kilograms — helpful when NHS resources or GPs discuss weight in metric units. Track your progress with our free progress tracker to monitor changes over weeks and months. Always discuss significant weight changes or health concerns with your GP, who can provide personalised guidance based on your individual health profile and medical history.
- 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 a healthy weight in stones and pounds for a UK adult?
A healthy weight depends on your height. Use the NHS BMI range (18.5–24.9) as a guide. For example, an adult 5ft 6in tall has a healthy weight range of approximately 8 stone 0 pounds to 10 stone 10 pounds. Our free BMI calculator shows your personal healthy range instantly.
How do I convert kilograms to stones and pounds?
Divide kilograms by 6.35029 to get stone. For example, 70kg ÷ 6.35 = 11 stone. Our free weight converter does this calculation instantly — just enter your weight and switch between units.
Does a weight chart account for muscle mass?
No. Weight charts use BMI, which doesn't distinguish between fat and muscle. An athlete may have a high BMI but low body fat. Your GP can assess your individual health profile beyond what a weight chart shows.
Why do weight charts use different categories for South Asian adults?
The NHS recognises that people of South Asian, Chinese, Black African, and Black Caribbean heritage have higher health risks at lower BMI levels. Healthy weight thresholds are lower for these groups — your GP can advise what's healthy for you.
Can I use a weight chart during pregnancy?
No. Pregnancy weight gain is normal and healthy. Don't use standard weight charts during pregnancy. Always follow guidance from your midwife or GP about weight management in pregnancy.
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.