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
Miles to Kilograms — Understanding Different Measurement Units
If you're searching for "mi to kg", you've likely encountered a unit confusion — miles (mi) measure distance, while kilograms (kg) measure weight. These units cannot be directly converted because they measure completely different things. This UK health guide clarifies the distinction and helps you find the conversion you actually need, whether that's weight, distance, or health measurements aligned with NHS guidance.
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.
Why Miles and Kilograms Cannot Be Converted
Miles (mi) and kilograms (kg) are fundamentally different measurement types:
- Miles measure distance or length — used for travel, running distances, or map measurements
- Kilograms measure weight or mass — used for body weight, food portions, or medical measurements
You cannot convert between distance and weight units any more than you could convert hours into centimetres. If you need to convert body weight, the correct conversions are between kg, stone, and pounds (lbs). Use our free weight converter above to switch between kg, stone, and lbs instantly. For healthy weight context in the UK, our BMI calculator helps you understand where your weight sits on NHS health thresholds. South Asian, Chinese, Black African, and Black Caribbean adults have different NHS recommendations — our calculator accounts for these variations.
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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.
What Conversion Are You Actually Looking For?
If you arrived at this page searching for unit conversion, you likely need one of these: kg to stone (common UK body weight measurement), kg to pounds (for medical or international contexts), or km to miles (distance conversion, not weight). The distance equivalent of miles is kilometres (km), not kilograms. For health and weight management guidance in the UK, our free BMI calculator and weight converter provide gradual improvement aligned with NHS standards. If you're exploring weight loss or health metrics, try our GLP-1 weight loss calculator to understand potential outcomes with evidence-based weight management approaches.
- 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 the difference between miles and kilograms?
Miles measure distance (travel, running, maps), while kilograms measure weight or mass. They are completely different unit types and cannot be converted. If you need weight conversion, use kg to stone or kg to pounds instead.
How do I convert kilograms to stone for UK weight?
Divide kilograms by 6.35. For example, 70 kg ÷ 6.35 = 11 stone 0.1lbs. Use our free weight converter above for instant accurate conversions between kg, stone, and pounds.
Is miles the same as kilometres?
No. Kilometres (km) measure distance like miles do. One mile equals approximately 1.609 kilometres. Miles and kilometres are both distance units, unlike kilograms which measures weight.
What should I convert my weight to for NHS health checks?
The NHS uses kilograms for clinical measurements but understands stone and pounds — UK adults typically use stone. Use our BMI calculator and weight converter to see your weight in both units alongside your healthy weight range.
Can I use weight conversion for health and fitness tracking?
Yes. Converting between kg, stone, and pounds helps you track weight loss consistently. Our free progress tracker lets you log weight in any unit and track changes over time for sustainable weight management.
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.