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 BMI Does 68.5 Kg Give You?
68.5 kg equals 150.8 pounds or 10 stone 10.8 lbs. Your BMI at this weight depends entirely on your height. Using our free BMI calculator above, you can find your personal BMI instantly by entering your height. We've included example BMI values at common UK heights below, plus NHS guidance on what each category means for your health.
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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.
68.5 Kg BMI Examples at Different Heights
Your BMI at 68.5 kg varies significantly by height. Here are six realistic examples:
- 5ft 0in (152 cm): BMI = 29.4 (overweight)
- 5ft 3in (160 cm): BMI = 26.9 (overweight)
- 5ft 6in (168 cm): BMI = 24.3 (healthy weight)
- 5ft 9in (175 cm): BMI = 22.6 (healthy weight)
- 5ft 11in (180 cm): BMI = 21.3 (healthy weight)
- 6ft 1in (185 cm): BMI = 20.2 (healthy weight)
As you can see, the same weight gives very different BMI results depending on height. A kilogram to stone conversion alone doesn't tell you about your health — height matters equally. Calculate your specific BMI using the tool on this page by entering your exact height and weight together.
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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.
NHS BMI Categories and What They Mean
The NHS uses these BMI categories for UK adults:
- Under 18.5: Underweight
- 18.5–24.9: Healthy weight
- 25.0–29.9: Overweight
- 30.0 and above: Obese
Important: BMI has limitations — it doesn't distinguish muscle from fat, and waist circumference also matters for health. People of South Asian, Black African, or Black Caribbean heritage have different thresholds (healthy range is 18.5–22.9). Your GP can give you personalised health advice about your weight. Use our weight converter to check 68.5 kg in stone and pounds, and the BMI calculator to find your personal category.
- 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 68.5 kg in pounds?
68.5 kg equals 150.8 pounds (or 10 stone 10.8 lbs in UK measurements). Use our free weight converter above to convert between kg, stone, and pounds instantly.
Is 68.5 kg a healthy weight?
Whether 68.5 kg is healthy depends on your height, age, and body composition. At 5ft 6in it gives a healthy BMI (24.3), but at 5ft 0in it's overweight (29.4). Use the BMI calculator on this page with your actual height to find your category.
What is the BMI formula?
BMI = weight (kg) ÷ height (m)². For 68.5 kg at 1.70m: 68.5 ÷ (1.70)² = 23.7. The free BMI calculator above does this automatically for you.
Why does height matter so much for BMI?
BMI accounts for the fact that weight is distributed across different body heights. A 68.5 kg person who is 5ft 0in is denser than someone 6ft tall at the same weight — hence different BMI and health categories.
Should I use kg to stone conversion or BMI to check my health?
Use both. Weight conversion (kg to stone) tells you the measurement in UK units. BMI tells you whether your weight is healthy for your height. The NHS recommends both height and weight together for health assessment — not weight alone.
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.