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
Is 70.8 kg a Healthy Weight in Stone?
70.8 kilograms converts to approximately 11 stone and 2 pounds using the standard kilogram to stone conversion formula. However, whether this weight is healthy depends entirely on your height. The NHS uses BMI (body mass index) to determine healthy weight ranges, and the same weight can be healthy for one person and overweight for another depending on how tall you are. This guide shows you how to assess whether 70.8 kg is right for your height, plus what to do if you fall outside the healthy range. Use our free BMI calculator above to check your personal BMI instantly.
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.
Healthy Weight Ranges at Different Heights
At 70.8 kg, whether you're at a healthy weight depends on your height. Here are three real examples:
- At 163 cm (5ft 4in): BMI = 26.6 (overweight). Healthy range: 49–66 kg.
- At 173 cm (5ft 8in): BMI = 23.7 (healthy weight). Healthy range: 55–75 kg.
- At 183 cm (6ft 0in): BMI = 21.1 (healthy weight). Healthy range: 62–84 kg.
The NHS defines healthy BMI as 18.5–24.9. To convert kilograms to stone for any weight, divide by 6.35. Use our free weight converter above to switch between metric and imperial measurements instantly. If you're of South Asian, Chinese, Black African, or Black Caribbean heritage, the NHS recommends lower BMI thresholds — your prescriber can advise on what's healthy for you.
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.
NHS Guidance and What to Do Next
If 70.8 kg puts you in the overweight or obese range, the NHS recommends a waist measurement check alongside BMI. Increased health risk starts at a waist circumference of 94 cm (37 inches) for men or 80 cm (31.5 inches) for women. Even a modest 5–clinically studied weight loss can improve blood pressure, blood sugar control, and reduce joint strain. Your GP can refer you to a weight management service if needed, or you can explore evidence-based approaches like dietary changes and increased physical activity. Weight loss is a gradual process — the NHS recommends losing no more than 0.5–1 kg per week for sustainable results. If you're considering weight loss medication, speak to your prescriber about your eligibility and options.
- 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 70.8 kg to stone and pounds?
Divide 70.8 by 6.35 to get stone (11.16 stone), then multiply the decimal (0.16) by 14 to get pounds (2.24 lbs). This equals approximately 11 stone and 2 pounds. Our weight converter tool does this instantly.
Is 70.8 kg healthy for everyone?
No. At 70.8 kg, a person who is 5ft 4in would be overweight (BMI 26.6), whilst someone who is 5ft 8in would be at a healthy weight (BMI 23.7). Height makes all the difference. Use our BMI calculator to check your personal health status.
What if my weight is outside the healthy range?
The NHS recommends losing weight at 0.5–1 kg per week through a balanced diet and increased activity. Your GP can refer you to specialist weight management services. If eligible, prescription weight loss treatments are available following a clinical assessment.
What's the difference between BMI and waist measurement?
BMI uses height and weight; waist measurement checks where fat is stored. The NHS recommends both — excess abdominal fat carries higher health risks even at a healthy BMI. Men should aim for under 94 cm; women under 80 cm.
How can I track weight loss if I'm trying to reach a healthier weight?
Track your progress using our free progress tracker, which logs weight over time and shows trends. Combine this with regular GP check-ups, which typically include waist and BMI measurement for context and motivation.
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.