Exercise Bike vs Treadmill: Which Is Better for Your Home Gym?

Choosing between an exercise bike and a treadmill can be difficult when both offer convenient, effective cardio workouts at home. The right machine depends on your fitness goals, available space, budget, preferred training style and whether you need a lower-impact form of exercise.

In simple terms, a treadmill is often better for walking, running, higher calorie expenditure and race training. An exercise bike is usually the better option for low-impact cardio, joint-friendly workouts and compact home gym spaces.

This exercise bike vs treadmill guide compares calories burned, weight loss, cardiovascular fitness, muscle use, joint impact and practicality to help you decide which cardio machine is right for you.

Exercise bike vs treadmill: quick comparison

What is the difference between an exercise bike and a treadmill?

An exercise bike is a stationary cardio machine that recreates the movement of outdoor cycling. The user remains seated while pedalling and can increase or reduce the resistance to change the difficulty of the workout.

There are several types of indoor exercise bike, including:

• Upright exercise bikes
• Indoor cycling or spin bikes
• Recumbent exercise bikes
• Air bikes
• Folding exercise bikes

A treadmill uses a moving belt to allow you to walk, jog or run indoors. Most models let you adjust the belt speed, while some also include an incline setting to recreate uphill walking or running.

Both machines can raise your heart rate, improve cardiovascular fitness and support an active lifestyle. The main difference is that cycling is a seated, non-weight-bearing movement, while using a treadmill requires you to support and move your own body weight.

Is an exercise bike or treadmill better for cardio?

Both exercise bikes and treadmills provide effective cardiovascular workouts. Neither machine is automatically better for cardio because workout intensity, duration and consistency all influence the result.

A treadmill may help you reach a high exercise intensity quickly through running or steep incline walking. It also offers several easily recognisable forms of movement, from a gentle walk to a demanding interval run.

An exercise bike can deliver an equally challenging cardio session when you increase the resistance or use high-intensity intervals. Because cycling places less impact on the joints, some people find that they can train for longer or exercise more frequently on a bike.

As Village Gym explains in its exercise bike and treadmill comparison, your choice should reflect your wider training plan, preferred intensity, target muscle groups and any existing injuries.

The best cardio machine is ultimately the one you can use safely and consistently.

Exercise bike vs treadmill for weight loss

Both an exercise bike and a treadmill can support weight loss by helping you increase your daily energy expenditure. However, losing body fat also depends on your overall calorie intake, activity levels and long-term consistency.

Running on a treadmill will generally burn more calories per minute than moderate cycling because it is a weight-bearing activity that recruits a larger proportion of the body. Increasing the treadmill’s speed or incline can raise the intensity further.

That does not mean an exercise bike is ineffective for weight loss. A high-resistance cycling workout or indoor bike interval session can be extremely demanding. Its lower-impact movement may also make it easier for some users to complete longer, more regular workouts.

According to PureGym’s exercise bike vs treadmill comparison, treadmills may have an advantage for calorie expenditure, while exercise bikes remain a strong lower-impact option.

For weight loss, choose:

• A treadmill if you enjoy walking or running and want the potential for a higher calorie burn per minute.
• An exercise bike if low-impact cycling will help you exercise more comfortably and consistently.
• Either machine if it is the one you are more likely to use several times each week.

Calorie displays on home gym equipment should be treated as estimates. Your actual energy expenditure will vary according to body weight, workout duration, intensity, fitness level and the machine’s calculations.

Which machine is better for your joints?

An exercise bike is generally more joint-friendly than running on a treadmill.

Cycling is a low-impact activity because the seat supports much of your body weight and your feet remain in contact with the pedals. This reduces the repeated impact placed on the ankles, knees and hips.

A treadmill does not always require high-impact exercise. Walking at a comfortable pace can be a relatively gentle way to increase daily movement. However, jogging and running involve repeated foot strikes and may place more stress on the lower-body joints.

An exercise bike may be more suitable if:

• You prefer low-impact exercise.
• Running feels uncomfortable.
• You are new to regular cardio.
• You want a seated workout.
• You find it difficult to remain standing for long sessions.

Anyone recovering from an injury or managing a health condition should seek personalised advice from a qualified healthcare professional before starting a new exercise programme.

Which burns more calories: an exercise bike or treadmill?

A treadmill will often burn more calories during an equivalent high-intensity session, particularly when it is used for running. This is partly because running requires you to support your body weight and engage more muscles to maintain posture and movement.

However, comparisons only work when duration and intensity are similar. A challenging indoor cycling session could burn more calories than a gentle treadmill walk. Equally, a long bike ride may result in greater total energy expenditure than a short run.

Instead of choosing a machine solely because it has the highest theoretical calorie burn, consider which workout you can sustain. Thirty minutes of exercise you enjoy and repeat regularly is more useful than an intense machine you avoid using.

What muscles do exercise bikes work?

Exercise bikes primarily target the lower body. The main muscles used include:

• Quadriceps at the front of the thighs
• Hamstrings at the back of the thighs
• Glutes
• Calves
• Hip flexors

Your core and back muscles also help stabilise your body, particularly during intense upright or indoor cycling sessions.

Increasing the resistance makes the muscles work harder, but cycling should not completely replace dedicated strength training if building muscle and strength is one of your goals.

What muscles do treadmills work?

Walking and running on a treadmill work many of the same lower-body muscles as cycling, including:

• Quadriceps
• Hamstrings
• Glutes
• Calves
• Hip flexors

A treadmill also requires your core to help control posture and balance. Walking or running without holding the handrails allows your arms to move naturally and involves more of the upper body.

Adding an incline can increase the demand placed on the glutes, calves and posterior chain. The treadmill’s weight-bearing movement can also be useful for people who want their indoor workouts to complement outdoor walking or running.

Which is better for beginners?

Both machines can be suitable for beginners.

An exercise bike may feel more accessible because the user is seated and does not have to balance on a moving belt. Resistance can begin at a low level and increase gradually as fitness improves.

A treadmill is also beginner-friendly when used for walking. Users can start with a comfortable speed before progressing to brisk walking, incline workouts, jogging or running.

Beginners should focus on manageable workouts rather than trying to train at maximum intensity immediately. A practical starting session could include five minutes at an easy pace, 10 to 15 minutes at a moderate effort and a short cool-down.

Which offers more workout variety?

Treadmills generally offer slightly more variety because you can walk, jog, run and train at different incline levels. Common treadmill workouts include:

• Steady-paced walking
• Incline walking
• Jogging
• Distance running
• Sprint intervals
• Walk-run sessions
• Hill workouts

Exercise bikes still provide plenty of training options, including:

• Steady-state cycling
• High-resistance climbs
• Sprint intervals
• Low-impact recovery sessions
• Endurance rides
• High-intensity interval training

Some machines include preset programmes that automatically change speed, incline or resistance throughout the session.

Exercise bike vs treadmill for a small home gym

An exercise bike will usually require less floor space than a full-sized treadmill, making it a practical choice for a bedroom, spare room or compact home gym. Some bikes also include transport wheels or folding frames.

Treadmills are typically longer and heavier. Folding treadmills can reduce the amount of permanent floor space required, but you still need sufficient room to unfold and use the machine safely.

Before buying either machine, check:

• The equipment’s assembled dimensions
• The recommended clearance around it
• Ceiling height, particularly for treadmill use
• Maximum user weight
• Access through doors and stairways
• Available electrical sockets
• Floor strength and surface protection
• Whether the machine can be folded or moved

You should measure the intended area rather than relying on photographs, as cardio machines can appear smaller online than they are in a home environment.

Is an exercise bike cheaper than a treadmill?

Exercise bikes are often less expensive than treadmills, although prices vary considerably according to build quality, resistance systems, maximum user weight, console features and whether the equipment is designed for domestic or commercial use.

Treadmills tend to cost more because they require a motor, running belt and larger frame. Features such as powered incline, high maximum speeds, shock absorption and interactive screens can increase the price further.

The cheapest option is not necessarily the best value. Consider durability, warranty cover, user weight capacity and whether the machine can support your expected training frequency.

Pros and cons of an exercise bike

Exercise bike advantages

• Provides low-impact cardio.
• Usually takes up less space.
• Suitable for steady and interval workouts.
• Allows you to adjust resistance.
• Often quieter than a treadmill.
• Available in upright, spin and recumbent designs.
• Can be comfortable for longer workouts.

Exercise bike disadvantages

• Does not provide weight-bearing exercise.
• Focuses mainly on the lower body.
• May feel less natural if you prefer walking or running.
• The seat can feel uncomfortable until correctly adjusted.
• Incorrect seat positioning may affect comfort and pedalling technique.

Explore exercise bikes from Gym Fitness Store to compare different styles and find an option that suits your available space and training preferences.

Pros and cons of a treadmill

Treadmill advantages

• Supports walking, jogging and running.
• Provides weight-bearing exercise.
• Can offer a high-intensity workout.
• Speed and incline settings create workout variety.
• Useful for maintaining running fitness indoors.
• Suitable for beginners when used at walking speeds.
• Can recruit more of the body during running.

Treadmill disadvantages

• Usually requires more space.
• Running is higher impact than cycling.
• Often costs more than an exercise bike.
• The motor and moving belt can produce more noise.
• May require greater maintenance.
• Users need time to become comfortable on the moving belt.

Browse treadmills at Gym Fitness Store to compare machines for walking, jogging, running and home cardio training.

Should you buy an exercise bike or treadmill?

Choose an exercise bike if you want:

• A lower-impact cardio workout
• A compact home exercise machine
• Seated workouts
• Adjustable cycling resistance
• A machine that is usually quieter and easier to position

Choose a treadmill if you want:

• To walk, jog or run indoors
• Weight-bearing cardiovascular exercise
• A wide range of speeds and intensities
• Incline walking or running workouts
• Training that supports outdoor running goals

If budget and space allow, exercise bikes and treadmills can complement each other. Alternating between them can add variety to a training plan and prevent every cardio session from following the same movement pattern.

Exercise bike vs treadmill: the final verdict

There is no single winner for every home gym.

A treadmill is likely to be the better choice if your goals centre on walking, running, race preparation or achieving a higher calorie expenditure during intense sessions. An exercise bike may be better if you value low-impact movement, a seated workout and a more compact piece of cardio equipment.

What matters most is choosing a machine that matches your body, goals and preferred way of exercising. The equipment you enjoy using is more likely to become part of a consistent fitness routine.

Frequently asked questions

Is an exercise bike or treadmill better for belly fat?

Neither machine can specifically target belly fat. Both can increase calorie expenditure and support overall fat loss when combined with a suitable diet and consistent activity. A treadmill may burn more calories per minute during running, while an exercise bike may make longer or more frequent workouts manageable.

Is 30 minutes on an exercise bike better than 30 minutes on a treadmill?

It depends on the intensity. Thirty minutes of hard cycling could be more demanding than a gentle treadmill walk, while running may burn more calories than moderate cycling. Your fitness level, resistance, speed and incline all affect the result.

Is a treadmill or exercise bike better for knees?

An exercise bike is generally lower impact because your body weight is supported by the seat. Walking on a treadmill may also be manageable for many people, but running produces greater impact. Seek professional advice if you experience knee pain or have an existing injury.

Can you lose weight using an exercise bike?

Yes. Regular cycling can support weight loss by increasing energy expenditure. Results also depend on workout intensity, duration, dietary intake and overall consistency.

Can you lose weight by walking on a treadmill?

Yes. Regular treadmill walking can increase activity levels and calorie expenditure. Speed, incline, session duration and diet will influence weight-loss results.

Which is better for seniors: an exercise bike or treadmill?

A recumbent or upright exercise bike may suit people who prefer seated, lower-impact exercise. A treadmill can be useful for controlled indoor walking, but balance, mobility and individual health should be considered. Professional guidance may be appropriate before beginning.

Do exercise bikes use electricity?

Many basic exercise bikes can operate without mains electricity, although their consoles may require batteries. Bikes with powered displays or interactive features may need to be plugged in. Always check the individual product specification.

Do treadmills use a lot of electricity?

Electricity use varies according to motor size, user weight, speed, incline and workout duration. A treadmill only consumes power while being used, but higher-powered models and demanding sessions will generally use more energy.