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 Does 4 Divided by 70 Mean in UK Health?
The calculation 4 divided by 70 equals approximately 0.057 — a small decimal fraction that appears in various health and fitness contexts. In UK health information, this ratio can relate to body composition assessment, waist-to-height ratios, or proportional health metrics used by NHS guidance. Understanding how mathematical relationships apply to your health is part of informed weight management. MyWeightCheck provides free UK health calculators to help you interpret your personal health data accurately and in line with NHS recommendations for adults seeking to understand their healthy weight range.
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.
How This Ratio Applies to Your Health
In UK health guidance, small decimal ratios like 0.057 (or approximately 5.7%) often represent proportional changes or body composition metrics. The waist-to-height ratio, for example, is a valuable NHS-recognised indicator of cardiovascular health — and uses decimal values to show how your waist circumference compares to your height. A healthy waist-to-height ratio should remain below 0.5 for UK adults of all ages.
When assessing your personal health metrics, context matters. Our free weight converter and BMI calculator help translate raw numbers into meaningful health information aligned with NHS thresholds. Rather than focusing on isolated calculations, consider your overall health picture: BMI, waist circumference, physical activity, and how you feel day-to-day.
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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.
Using MyWeightCheck Tools for Accurate Health Data
MyWeightCheck offers evidence-based UK health information designed for adults managing their weight. Our free tools include a BMI calculator following NHS classifications, a weight converter for stone, pounds, and kilograms, and a progress tracker to monitor changes over time. These resources support your NHS health advice by making complex calculations simple and accessible.
If you're exploring weight management options or trying to understand your health metrics, our free GLP-1 weight loss calculator provides context for prescription weight loss treatments available in the UK. Always discuss your personal health goals with your GP or a healthcare professional — they can interpret your individual numbers and recommend the best approach for your situation.
- 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 does 4 divided by 70 equal?
4 ÷ 70 = 0.0571 (approximately 5.7%). This small decimal ratio can represent proportional health metrics, body composition changes, or waist-to-height calculations used in UK health assessment. Context determines its meaning.
How does this relate to BMI or weight management?
In UK weight management, small decimal ratios often show how one measurement compares to another — such as waist circumference relative to height. NHS guidance recommends keeping waist-to-height ratio below 0.5 for cardiovascular health.
Should I use this calculation for my own health assessment?
Individual health assessment should always involve your GP. MyWeightCheck provides free calculators aligned with NHS guidance — our BMI tool and weight converter help translate numbers into meaningful context for UK adults.
Where can I get personalised health advice about my weight?
Your GP is the best source for personalised weight management advice. MyWeightCheck offers free, evidence-based UK health information to support conversations with your healthcare provider, but never replaces professional medical guidance.
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.