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
Weight Loss Bike Workout — How Cycling Supports Your Goals
Cycling is one of the most effective and sustainable ways to support weight loss and improve overall fitness in the UK. A regular bike workout burns significant calories, strengthens your cardiovascular system, and can be adapted to any fitness level. Whether you're cycling on a stationary bike at home or outdoors, combining exercise with proper nutrition and weight management UK strategies creates the best results for long-term success.
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.
How Much Calorie Burn From Cycling?
Cycling burns calories at varying rates depending on intensity, body weight, and duration. A person weighing 70kg cycling at a moderate pace (16–19 km/h) burns approximately 300–400 calories per hour. Higher intensity cycling (22–25 km/h) burns 500–700 calories per hour. To lose weight, you need a calorie deficit of around 500 kcal daily, which roughly equals 0.5kg per week — a safe, sustainable rate recommended by the NHS.
- Moderate cycling (steady pace): 300–400 calories/hour
- Vigorous cycling (faster pace): 500–700 calories/hour
- Stationary/indoor cycling: 250–600 calories/hour (varies with resistance)
- Mountain biking or sprints: 600–900 calories/hour
Regular cycling, combined with a reduced-calorie diet, is proven to support sustainable weight loss. Try our free BMI calculator above to understand your current health status and set realistic goals.
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.
Cycling Plus Weight Loss Medication — What Works Best?
For many people in the UK, exercise alone takes time to produce visible results. Prescription weight loss medication combined with cycling can accelerate progress significantly. GLP-1 weight loss medications like Mounjaro and Wegovy work by reducing appetite and supporting feelings of fullness, while cycling burns calories and improves cardiovascular fitness. Research shows that combining exercise with weight loss injections produces better results than either approach alone. Our GLP-1 weight loss calculator can help you estimate potential outcomes when combining medication with regular exercise. Always consult your GP about whether prescription weight loss treatment is right for you.
- 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 times per week should I cycle for weight loss?
The NHS recommends at least 150 minutes of moderate-intensity activity per week. For weight loss, this could be 30 minutes of cycling, 5 days per week. However, consistency matters more than frequency — regular, sustainable cycling at any pace is better than sporadic intense sessions. Start with what you can maintain and gradually increase.
Can cycling alone help me lose weight without diet changes?
Cycling burns calories and improves fitness, but weight loss fundamentally requires a calorie deficit. Exercise alone rarely produces significant weight loss without dietary changes. Combining cycling with a reduced-calorie diet, and potentially weight loss medication with NHS support, creates the best outcomes for sustainable, long-term results.
Is stationary cycling as effective as outdoor cycling for weight loss?
Yes, stationary cycling can be equally effective if you maintain similar intensity and duration. Many people find indoor cycling easier to track (resistance levels, duration) and more sustainable during bad weather. Both burn comparable calories and support weight loss when combined with proper nutrition.
What should I eat before a cycling workout for weight loss?
Eat a light, balanced snack 1–2 hours before cycling — roughly 150–200 calories with carbohydrates and protein. Examples: banana with peanut butter, yoghurt with berries, or a small piece of toast with eggs. Avoid heavy meals. Stay hydrated with water. Post-workout, eat within 30–60 minutes to aid recovery.
Can I use cycling with weight loss injections like Wegovy?
Yes. Combining regular exercise with prescription weight loss medication can enhance results. Wegovy (semaglutide) is a once-weekly GLP-1 injection that may help reduce appetite whilst cycling supports calorie burn. This combination requires a prescription and clinical assessment — speak to your GP or a licensed prescriber about whether this approach is suitable for you.
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.