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 70.5 Kilos In Stones And Pounds?
70.5 kilos is equivalent to 11 stone 2.3 pounds (or 155.4 lbs in total). This conversion uses the standard metric to imperial weight conversion that's used throughout the UK. However, what matters most for your health isn't just the number on the scale—it's how this weight relates to your height. Your BMI will vary depending on your height, which is why we've provided several examples below to help you understand where you fall on the NHS weight categories.
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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.
What BMI Does 70.5kg Give At Different Heights?
At a weight of 70.5kg, your BMI depends entirely on your height. Here are BMI examples at common UK heights:
- 160cm (5ft 3in): BMI of 27.6 — falls in the overweight range (25.0–29.9)
- 165cm (5ft 5in): BMI of 25.9 — falls in the overweight range
- 170cm (5ft 7in): BMI of 24.4 — falls in the healthy weight range (18.5–24.9)
- 175cm (5ft 9in): BMI of 23.0 — falls in the healthy weight range
- 180cm (5ft 11in): BMI of 21.8 — falls in the healthy weight range
- 185cm (6ft 1in): BMI of 20.6 — falls in the healthy weight range
Use our free BMI calculator above to find your exact BMI using your own height, and our weight converter to check this weight in different units (kilos to stone, or kg to stone conversions).
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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 Weight Health
The NHS uses standardised BMI categories to assess weight health. A healthy BMI range for most UK adults is 18.5 to 24.9. If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower thresholds: 18.5 to 22.9 is considered healthy for these groups. Remember that BMI has limitations—it doesn't distinguish between muscle and fat, so athletic individuals may have a higher BMI with low body fat. Waist circumference also matters: for men, over 94cm increases health risk; for women, over 80cm. Speak with your GP for personalised health guidance based on your individual circumstances.
- 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.
How do I convert 70.5kg to stones and pounds?
Divide 70.5 by 6.35 to get stones (11.1 stone), then multiply the decimal by 14 to get pounds (1.4 lbs). So 70.5kg = 11 stone 2.3 pounds. Our weight converter above can do this instantly for any weight.
Is 70.5kg a healthy weight?
That depends on your height. At 170cm+ it's typically healthy; at shorter heights (under 165cm) it may fall into the overweight category. Use our BMI calculator above with your actual height to find your personal BMI and NHS category.
What's the difference between stone and pounds?
One stone equals exactly 14 pounds. So 11 stone = 154 pounds, plus the additional 1.4 pounds makes 155.4 lbs total. UK health discussions often use stone and pounds together (e.g., "11 stone 2"), whilst clinical settings typically use kilograms.
Does BMI matter if I'm very muscular?
BMI is a screening tool but has limitations. It doesn't account for muscle mass—athletes can have high BMI with low body fat. Your GP can assess your actual health using additional measures like waist circumference and overall fitness level.
Should I track my weight loss using our progress tracker?
Yes—tracking weight over time helps you see patterns and progress. Our free progress tracker lets you log weekly weights and spot trends. Combined with regular BMI checks using our calculator, it's a practical way to monitor your health journey.
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.