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 135 Kg Mean for Your Health?
135 kg is a significant weight that falls into the obese category according to NHS guidelines for most UK adults. Whether this weight is a health concern depends on your height, age, and overall fitness. Using our free weight converter and BMI calculator, you can determine your personal BMI and understand where you sit within NHS healthy weight guidance. This health guide provides UK-specific context to help you assess your individual situation and explore next steps with your GP if needed.
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.
NHS BMI Categories and 135 Kg in Context
At 135 kg, your BMI depends entirely on your height. For example:
- If you are 1.75m tall (5ft 9in), 135 kg gives a BMI of 44 — classified as severely obese (Class III) by NHS standards
- If you are 1.85m tall (6ft 1in), 135 kg gives a BMI of 39.5 — classified as obese (Class II)
- If you are 1.95m tall (6ft 5in), 135 kg gives a BMI of 35.5 — classified as obese (Class I)
According to NHS guidance, a healthy BMI falls between 18.5 and 24.9. At 135 kg, most adults will be above this range. However, BMI has limitations — it does not distinguish between muscle and fat, so a very muscular person at this weight may have a lower health risk than someone with high body fat percentage. Use our free BMI calculator above to check your exact BMI, then discuss the results with your GP for personalised health advice.
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.
UK Health Resources and Next Steps
If you are concerned about your weight, the NHS recommends starting with Tier 1 support: the free NHS Weight Loss Plan, increased physical activity, and dietary changes. Your GP can refer you to local weight management services (Tier 2 or 3), which may include one-to-one advice, group programmes, or prescription weight loss treatment if clinically appropriate. At 135 kg, you may be eligible for specialist NHS weight management services or private weight management options. Our free progress tracker can help you log changes over time, and the weight converter lets you track progress in your preferred units — stone, pounds, or kilograms.
- 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.
Is 135 kg obese for all heights?
At 135 kg, most adults fall into the obese category, but it depends on height. Someone 1.95m tall may have a lower BMI than someone 1.60m tall at the same weight. Use our free BMI calculator to find your exact category — it only takes seconds and gives you NHS-standard guidance instantly.
What is a healthy weight for 135 kg adults?
There is no single "healthy weight" — it depends on your height, age, and muscle mass. The NHS recommends a BMI of 18.5–24.9. For example, a 1.75m tall adult should aim for 56–76 kg. Your GP can advise on a realistic, personalised target based on your health.
Can I lose weight from 135 kg safely?
Yes. The NHS recommends losing 0.5–1 kg per week through reduced-calorie diet and increased activity. At 135 kg, even a 5–clinically studied weight loss (6.75–13.5 kg) can improve blood pressure, blood sugar, and joint health. Your GP can support you with structured plans and, if suitable, referral to specialist services.
What weight-related health risks are associated with 135 kg?
At 135 kg, increased risks include type 2 diabetes, heart disease, high blood pressure, sleep apnoea, and joint problems. These risks vary by individual fitness, age, and family history. Your GP can assess your personal risk and recommend screening or preventive steps.
Are weight loss injections available on the NHS at 135 kg?
Possibly. GLP-1 medications like Mounjaro and Wegovy are available through NHS specialist weight management services for adults with BMI ≥30 (or ≥27.5 with health conditions). Availability varies by region. Ask your GP for a referral to your local tier 3 service, or explore private options.
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.