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 Is 77kg in Pounds and What's Your BMI?
77kg is equivalent to 169.8 pounds. However, your BMI — which is what actually matters for health — depends entirely on your height. The same weight of 77kg can result in a healthy BMI for a tall person or an overweight BMI for someone shorter. This guide shows you what 77kg means for your health at different heights, using NHS weight guidelines. Use our free BMI calculator above to find your exact BMI instantly.
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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.
77kg BMI at Different Heights
At 77kg, your BMI varies significantly depending on your height. Here are realistic examples using standard UK heights:
- 5ft 2in (157cm): BMI = 31.2 — Obese (Class I) category
- 5ft 6in (168cm): BMI = 26.4 — Overweight category
- 5ft 10in (178cm): BMI = 24.0 — Healthy weight category
- 6ft 0in (183cm): BMI = 22.2 — Healthy weight category
- 6ft 2in (188cm): BMI = 20.9 — Healthy weight category
As you can see, 77kg in stone and pounds (12 stone 1 pound) is a healthy weight for taller adults but may indicate overweight or obesity for shorter individuals. To convert kilograms to stone accurately for your own height, use the weight converter on this page to switch between metric and imperial weight measurements instantly.
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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.
Understanding NHS BMI Categories
The NHS uses these BMI categories for adults: Healthy weight is 18.5–24.9, Overweight is 25.0–29.9, Obese Class I is 30.0–34.9, Obese Class II is 35.0–39.9, and Severely Obese is 40.0+. It's important to note that BMI has limitations — it doesn't distinguish between muscle and fat, so an athletic person with high muscle mass might have a high BMI but low body fat. Additionally, where you carry weight matters: excess fat around the waist carries higher health risks than fat stored elsewhere. Your GP can provide personalised health advice based on your individual circumstances.
- 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 77kg to stone and pounds?
77kg equals 12 stone and 1 pound (12st 1lb). To calculate: divide 77 by 6.35029 to get 12.13 stone. The 0.13 stone equals approximately 1.8 pounds. Our free weight converter above lets you convert between kg, stone, and pounds instantly for any weight.
Is 77kg a healthy weight?
Whether 77kg is healthy depends entirely on your height. At 5ft 10in it's healthy; at 5ft 2in it's overweight. Use our BMI calculator above to enter your height and see your personal BMI category according to NHS guidelines.
What's my BMI if I weigh 77kg?
Your BMI at 77kg depends on your height. For example, at 5ft 6in your BMI would be 26.4 (overweight), whilst at 5ft 10in it would be 24.0 (healthy). Use the free BMI calculator on this page to calculate your exact BMI instantly by entering your height.
How much does 77kg weigh in pounds?
77kg weighs 169.8 pounds (often rounded to 170 lbs). In stone and pounds, this equals 12 stone and 1 pound. Use our weight converter above to instantly convert between kilograms, pounds, and stone.
Is 77kg overweight or obese?
At 77kg, this depends on your height. The NHS BMI categories show that 77kg is healthy for people 5ft 8in or taller, overweight for people 5ft 4in to 5ft 7in, and obese for people shorter than 5ft 4in. Check your BMI with our free calculator to see your personal category.
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.