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
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Is Walking or Cycling Better for Weight Loss?
Both walking and cycling are excellent low-impact exercises for weight management in the UK. The answer to which is "better" depends on your fitness level, joint health, and personal preference — but both can support sustainable weight loss when combined with a reduced-calorie diet. Here's how they compare and which might work best for you.
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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.
Calorie Burn: Walking vs Cycling
Cycling typically burns more calories per hour than walking. On average, moderate-pace cycling burns approximately 400–600 calories per hour, whilst walking at a steady pace burns 200–400 calories per hour — though this varies based on your body weight, fitness level, and intensity.
- Cycling: Higher intensity potential; better for building leg muscle; gentler on knees if done correctly
- Walking: Lower barrier to entry; easier to sustain for longer; less equipment needed; suitable for most fitness levels
For NHS weight loss guidance, remember that sustainable weight management requires a calorie deficit of approximately 500 kcal per day for a loss of around 0.5 kg per week. Both activities contribute to this deficit, but cycling may help you reach it faster. However, consistency matters more than intensity — a regular 30-minute walk you'll actually do is more effective than an intense cycling session you avoid.
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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.
Choosing Between Walking and Cycling for You
If you have joint problems, arthritis, or knee pain, cycling is often the better choice because it's lower-impact. Walking is weight-bearing, which strengthens bones but puts more stress on joints. If you're just starting out with exercise, walking requires no equipment and is easier to build into daily routine — use our free BMI calculator to establish your baseline, then track progress over time.
For maximum consistency, choose whichever activity you genuinely enjoy and can sustain 3–5 times per week. Combining both activities offers variety and works different muscle groups. Remember, exercise alone rarely produces significant weight loss — both walking and cycling work best alongside dietary changes and, if appropriate, prescription weight loss medication. If you're considering GLP-1 weight loss medication like Mounjaro or Wegovy, your prescriber will advise you on safe exercise levels during treatment.
- 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 much weight can I lose with walking or cycling alone?
Weight loss depends primarily on creating a calorie deficit. Walking or cycling alone, without dietary changes, typically results in modest weight loss of 0.25–0.5 kg per week. The NHS recommends combining exercise with a reduced-calorie diet for effective, sustainable weight management. For significant weight loss goals, your GP may also discuss prescription weight loss options.
Is cycling better if I want to lose weight faster?
Cycling burns more calories per hour than walking, so it may support faster initial weight loss if you maintain intensity. However, the most effective approach is one you'll stick with consistently. Walking 5 days per week is more effective than occasional intense cycling. Combine whichever activity you prefer with NHS weight loss principles for best results.
Can I walk or cycle if I'm taking Mounjaro or Wegovy?
Yes, walking and cycling are safe with prescription weight loss injections. Always discuss your exercise plans with your prescriber, as GLP-1 medications like Wegovy and Mounjaro work best alongside lifestyle changes including regular activity. Start gradually and listen to your body, especially during dose escalation phases.
How often should I walk or cycle for weight loss?
The NHS recommends at least 150 minutes of moderate-intensity aerobic activity per week for adults. This could be 30 minutes of brisk walking or cycling 5 days per week. Consistency is more important than intensity — sustainable, regular activity beats sporadic intense exercise. Use our free progress tracker to log your activity and weight changes.
Does walking or cycling help with weight loss if I'm overweight or obese?
Both are excellent starting points for overweight and obese adults. Walking is lower-impact and easier to begin with; cycling removes weight-bearing stress on joints. Either activity supports weight loss through calorie burn and improved fitness. Calculate your starting BMI with our free BMI calculator, then combine regular activity with dietary changes for best results. Consult your GP if weight loss is difficult despite lifestyle changes.
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.