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 Gym Machines Are Best For Weight Loss?
The best gym machines for weight loss are those that burn the most calories and build muscle — typically rowing machines, treadmills, and stationary bikes. However, sustainable weight management UK relies on more than exercise alone. The NHS recommends combining regular physical activity with dietary changes. For many people, this includes professional support. Our free BMI calculator can help you establish your current weight status, and our GLP-1 weight loss calculator can show how combining exercise with other weight management approaches might work together.
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.
Top Gym Machines That Burn Calories Effectively
Rowing machines are among the most effective gym machines for weight loss, burning approximately 600–900 calories per hour depending on intensity and body weight. They engage multiple muscle groups simultaneously, which increases metabolic demand.
- Treadmills: Running or brisk walking burns 500–900 calories per hour and remains one of the most accessible machines for sustained calorie burn
- StairMasters: Climbing stairs burns 500–800 calories hourly whilst building leg strength
- Stationary bikes: Cycling machines burn 400–700 calories per hour with lower joint impact, making them suitable for longer sessions
- Cross trainers: Full-body elliptical machines burn 400–600 calories per hour with minimal joint stress
The NHS emphasises that weight loss requires a calorie deficit of approximately 500 kcal daily to achieve sustainable loss of 0.5–1 kg weekly. Machine selection should suit your fitness level and be something you'll use consistently.
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.
Combining Exercise With Weight Loss Medication
Whilst regular gym use supports weight loss injections uk like GLP-1 medications, exercise alone rarely produces significant weight loss without dietary support. Prescription weight loss UK medications such as Mounjaro and Wegovy work best alongside reduced-calorie eating and increased physical activity — not instead of lifestyle changes.
The NHS recommends at least 150 minutes of moderate aerobic activity weekly. Combining this with strength training on gym machines and healthy eating creates a more effective approach than any single strategy alone. Our progress tracker allows you to log both your exercise sessions and weight changes over time, helping you see how different approaches work together for your individual results.
- 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.
Which gym machine burns the most calories?
Rowing machines typically burn the most calories (600–900 per hour), followed by treadmills (500–900 per hour) and StairMasters (500–800 per hour). Actual calorie burn depends on your body weight, intensity level, and duration. The NHS weight loss guidance emphasises that exercise combined with a calorie-controlled diet is most effective.
How often should I use gym machines for weight loss?
The NHS recommends at least 150 minutes of moderate-intensity aerobic activity weekly, plus strength training twice weekly. This could mean 3–5 gym sessions per week. Consistency matters more than intensity — sustainable routines you can maintain long-term produce better results than intense short-term efforts.
Can gym machines alone help me lose weight?
Gym machines alone are rarely sufficient for meaningful weight loss. The NHS emphasises that weight loss requires a calorie deficit, primarily achieved through diet changes rather than exercise alone. Most people need to combine regular exercise with reduced-calorie eating. Our BMI calculator can help establish your starting point and healthy weight range.
Are gym machines suitable for people starting weight loss?
Lower-impact machines like stationary bikes, cross trainers, and rowing machines are excellent starting points for people new to exercise. These allow you to build fitness gradually whilst burning significant calories. Always start at a comfortable intensity and increase gradually. If you have existing health conditions, discuss exercise plans with your GP first.
Should I use gym machines if I'm taking weight loss medication?
Yes — combining gym activity with prescription weight loss medication (such as GLP-1 weight loss approaches) is recommended. Exercise supports better overall health outcomes and can enhance results. However, weight loss medication is only part of the approach; diet and exercise remain essential. Try our GLP-1 calculator to see how these factors combine for sustainable weight management.
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.