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
Ideal Weight for a 6ft 1 Male
The ideal weight for a 6ft 1 (185cm) male depends on your individual health and body composition, but the NHS defines a healthy weight range based on BMI. For your height, a healthy weight falls between approximately 60kg (9st 6lbs) and 81kg (12st 11lbs). This range corresponds to a BMI of 18.5 to 24.9, which is the NHS benchmark for good health. However, your ideal body weight may vary based on muscle mass, age, and personal health goals. Use our free BMI calculator above to find your specific healthy weight range and understand where your current weight sits on the NHS health scale.
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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.
Healthy Weight Range for 6ft 1 — BMI-Based Calculation
For a male who is 6ft 1 (185cm tall), the NHS healthy weight range is 60–81kg (9st 6lbs to 12st 11lbs). This is calculated using the BMI formula and NHS guidelines that define a healthy BMI as 18.5 to 24.9.
- Lower healthy boundary: 60kg = BMI 18.5 (9st 6lbs)
- Upper healthy boundary: 81kg = BMI 24.9 (12st 11lbs)
- Midpoint (typical target): approximately 71kg (11st 2lbs)
The average UK weight for an adult male is around 85.7kg (13st 7lbs), which means many UK men fall into the overweight category (BMI 25–29.9). Your ideal weight depends not just on the number on the scale, but also on how much of your body weight is muscle versus fat. Two men at the same weight can have very different body compositions and health profiles. This is why BMI is useful as a screening tool but has limitations—it doesn't distinguish between muscle and fat, and doesn't account for where excess weight is distributed.
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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.
How to Use the BMI Calculator for Your Personal Range
The most practical way to determine your ideal weight for height is to use our free BMI calculator on this page. Enter your height (185cm or 6ft 1) and your current weight, and the calculator will show you exactly where you sit on the NHS scale—healthy weight, overweight, or obese. This gives you an immediate, personalised result rather than a generic range.
Beyond BMI, also consider your waist circumference: for men, a waist over 94cm (37 inches) suggests increased health risk, and above 102cm (40 inches) indicates high risk. Even if your BMI is healthy, a large waist circumference can signal excess abdominal fat, which carries greater health risks. Combine the BMI calculator with regular weight converter checks to track progress in both kg and stone.
- 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 the ideal weight for a 6ft 1 male in stone?
The healthy weight range for a 6ft 1 male is approximately 9st 6lbs to 12st 11lbs (60–81kg). This corresponds to a BMI of 18.5 to 24.9, which the NHS considers healthy. Most men aim for the middle of this range, around 11st 2lbs (71kg), though ideal weight varies based on muscle mass and individual health goals.
Is the average UK weight different from the ideal weight?
Yes. The average UK adult male weighs around 85.7kg (13st 7lbs), which falls in the overweight category (BMI 25–29.9). This average is higher than the NHS ideal weight range of 60–81kg. Average weight and healthy weight are not the same—just because something is average doesn't mean it's healthy.
How much should a 6ft 1 male weigh if he's muscular?
BMI alone may not reflect health if you have significant muscle mass, since muscle weighs more than fat. A muscular man might have a BMI in the overweight category but low body fat. Consider supplementing BMI assessment with waist circumference measurement (ideally under 94cm for men) or discussing body composition with your GP for a complete picture.
What's the best way to reach my ideal weight?
Sustainable weight loss typically requires a calorie deficit of around 500 kcal per day, resulting in approximately 0.5kg loss per week. Combine dietary changes, increased physical activity, and regular monitoring using our free progress tracker. If you're struggling, discuss options with your GP, including whether structured weight management support might help.
Does ideal weight change with age?
BMI categories remain the same across adult ages, but muscle mass naturally decreases with age. Older adults may need to focus more on maintaining strength and bone health alongside weight management. Your GP can provide age-specific guidance on what's realistic and healthy for you personally.
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.