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 87 Kg a Healthy Weight? Convert to Stones and Lbs
87 kilograms converts to 13 stone and 8 pounds. Whether this weight is healthy depends entirely on your height, age, and overall health. Using NHS guidelines, we can determine if 87kg falls in a healthy weight range for you. Our free BMI calculator above will show you your personal BMI instantly based on your height, giving you a clear picture of where your weight sits on the NHS health scale.
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
To convert kilograms to stone, divide by 6.35029 — so 87kg equals approximately 13 stone and 8 pounds. However, the key question is whether this weight is healthy for your specific height. The NHS uses BMI (Body Mass Index) to define healthy weight ranges. For adults, a healthy BMI sits between 18.5 and 24.9.
- At 163 cm (5ft 4in): 87kg gives a BMI of 32.8 — in the obese category. Healthy weight range: 49–65kg (7st 9lbs to 10st 3lbs).
- At 173 cm (5ft 8in): 87kg gives a BMI of 29.1 — in the overweight category. Healthy weight range: 55–75kg (8st 9lbs to 11st 11lbs).
- At 183 cm (6ft 0in): 87kg gives a BMI of 26.0 — in the overweight category, near the upper healthy limit. Healthy weight range: 62–93kg (9st 10lbs to 14st 8lbs).
Use our weight converter to check 87kg against other imperial measurements, or calculate your personal BMI using the tool on this page.
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.
What to Do If Your Weight Is Outside the Healthy Range
If 87kg is above your healthy weight range, the NHS recommends a gradual approach: aim to lose 0.5 to 1 kg per week through a modest calorie deficit (around 500 kcal daily) combined with increased physical activity. Even losing 5–10% of your body weight can improve blood pressure, blood sugar control, and reduce joint strain.
It's also worth measuring your waist circumference. For men, over 94 cm (37 inches) indicates increased health risk; for women, over 80 cm (31.5 inches) is the threshold. This gives important health context beyond BMI alone. If you're concerned, speak with your GP who can assess your individual health picture and discuss support options, including structured weight management programmes.
- 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 87 kg in stones and pounds?
87 kilograms equals 13 stone and 8 pounds. To convert kg to stone and lbs, divide the kilogram amount by 6.35029 to get stone, then multiply the decimal remainder by 14 to get additional pounds. Our free weight converter on this page makes the calculation instant.
Is 87 kg a healthy weight?
It depends on your height. For someone 163 cm tall, 87kg is overweight. For someone 183 cm tall, it may fall closer to the healthy range. Use our BMI calculator to check your personal BMI, which considers both weight and height according to NHS guidelines.
What BMI does 87 kg give?
At 173 cm, 87kg produces a BMI of 29.1 (overweight category). BMI varies with height — shorter individuals will have a higher BMI at 87kg, taller individuals a lower BMI. Your GP can advise whether your BMI indicates increased health risk.
What's the healthy weight range at my height?
Healthy weight ranges differ by height. At 163 cm, healthy weight is 49–65kg; at 173 cm, it's 55–75kg; at 183 cm, it's 62–93kg. Calculate your specific healthy weight range using the BMI calculator on this page — just enter your height and we'll show you the exact range.
How can I lose weight safely if I'm above 87 kg?
The NHS recommends losing 0.5–1 kg per week through a combination of reduced calorie intake (around 500 kcal deficit daily) and regular physical activity. Start by speaking with your GP about structured weight management support, or track your progress using our free progress tracker.
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.