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 Cycling Class Good For Weight Loss?
Yes, cycling class can be an effective part of a weight loss programme when combined with a calorie deficit and healthy eating habits. Indoor cycling burns significant calories — typically 400–600 kcal per 45-minute session depending on intensity and body weight — making it a valuable component of sustainable weight management in the UK. However, weight loss ultimately depends on creating a consistent calorie deficit across your entire lifestyle, not exercise alone. Our free BMI calculator can help you understand your current weight status and set realistic goals.
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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.
How Cycling Class Supports Weight Loss
Cycling class is high-intensity cardiovascular exercise that builds lean muscle while burning calories. The benefits for weight loss include:
- High calorie burn: A 70kg person typically burns 450–550 kcal in a 45-minute moderate-to-vigorous cycling class
- Low impact: Unlike running, cycling is gentler on joints, making it sustainable long-term
- Preserves muscle: Resistance cycling builds leg and core muscle, which supports metabolic health
- Psychologically rewarding: Group classes create motivation and accountability — important for weight management in the UK
However, cycling class alone cannot create the calorie deficit needed for weight loss. The NHS emphasises that sustainable weight loss of 0.5–1 kg per week requires a combination of reduced-calorie diet and physical activity. For many people, lifestyle changes alone are challenging — that's why some individuals explore prescription weight loss medication alongside exercise.
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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.
Creating a Complete Weight Loss Plan
To lose weight effectively with cycling class, you need a calorie deficit across your whole day. A typical approach: cycling class (400–500 kcal burn) plus dietary changes (500 kcal reduction) can create a 900 kcal daily deficit, supporting approximately 0.9 kg loss per week alongside other activity.
For some people, prescription weight loss medication — such as GLP-1 injections like Wegovy or Mounjaro — can support weight loss alongside cycling and dietary changes. Our GLP-1 weight loss calculator can help you estimate potential outcomes. If you're interested in prescription options, speak to your GP about referral to NHS specialist weight management services, or consult a private prescriber for clinical assessment.
Track your progress using our free progress tracker to monitor both weight changes and fitness improvements over time.
- 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 many calories does a 45-minute cycling class burn?
A typical 45-minute indoor cycling class burns 400–600 calories depending on your body weight, fitness level, and class intensity. A 70kg person at moderate-to-vigorous intensity usually burns 450–550 kcal. Heavier individuals burn more; lighter individuals burn less. Always work at a sustainable intensity for your fitness level.
Is cycling class better than running for weight loss?
Both are effective for weight loss. Cycling burns similar calories to running but is lower-impact, making it easier to sustain long-term without joint injury. Running may burn slightly more calories per minute for some people. Choose whichever you enjoy and can maintain consistently — adherence matters more than which is "better".
How often should I do cycling class to lose weight?
The NHS recommends at least 150 minutes of moderate aerobic activity per week for health benefits. This could be 3–4 cycling classes weekly plus other activity. Weight loss also depends on calorie intake — exercise without dietary change produces slower results. Combine cycling with balanced eating for best outcomes.
Can cycling class alone make me lose weight without dieting?
Unlikely. A 45-minute cycling class burns 400–600 calories, but most people consume this back through normal eating without conscious effort. Sustainable weight loss requires a calorie deficit — typically achieved through both diet and exercise together. Use our BMI calculator to set realistic targets.
Is indoor cycling or outdoor cycling better for weight loss?
Both burn similar calories if intensity is matched. Indoor cycling allows controlled intensity and is easier to measure progress. Outdoor cycling is variable but may feel more engaging. Choose based on preference and accessibility — consistency matters more than which type you choose.
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.