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Regular aerobic exercise is important for achieving your fitness goals and essential to overall health. Thankfully, there’s no shortage of ways to get your cardio in at the gym with all the cardio machines available. You’ve got your ellipticals, rowers, stationary bikes—oh my!—but we’re here to discuss two other popular pieces of equipment: the treadmill and the StairMaster.

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While the treadmill and stairmaster both put your cardiovascular system to work, these workouts aren’t the same. But is one better than the other? Does the StairMaster have a step-up on the treadmill? So you can choose the best cardio machine for your fitness needs, let’s do a deep dive into the StairMaster vs treadmill comparison.

What Are StairMasters and Treadmills?

The treadmill is an all-time classic cardio machine that allows users to customize their cardio exercise to fit their fitness goals. Its rotating belt simulates walking, jogging, running, or sprinting at different speeds and inclines. The treadmill offers the benefits of road running without worrying about weather or traffic.

This form of exercise calls on many muscle groups, including the calves, quadriceps, hamstrings, core muscles, and upper body. A treadmill workout might look like steady-state cardio, where you pick one speed and run out the clock, or it might include high-intensity interval training (HIIT) with bursts of speed followed by periods of recovery. Its adjustable settings give this machine tons of versatility in a controlled environment, making it an excellent option for people of all fitness levels.

NordicTrack Commercial 1750 Treadmill

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The StairMaster, on the other hand, is the brand name for a stair stepper. Some gyms may interchangeably call this type of cardio machine the StairMaster, a stair stepper, or a stair climber. But no matter what you call it, it provides a hard-hitting cardio workout with its relentless ascent. Its rotating steps simulate a never-ending set of stairs, providing a high-intensity, low-impact workout.

StairMasters engage large lower-body muscle groups, including your calves, quads, and glutes, to avoid stressing the joints. The machine helps raise your heart rate and maximize calorie burn for fat loss and muscle building. It’s an excellent choice for those who want to improve their functional fitness and lower-body strength.

Our tester poses with the Echelon Stair Climber Sport.

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Both machines are powerhouses for cardio workouts, and both can help improve endurance and strength when included in a well-balanced training schedule. However, their differences may make one a better fit for your fitness needs.

Differences Between the Stairmaster and Treadmill

The apparent difference between the StairMaster and the treadmill is the range of motion, but their differences don’t stop there. These two pieces of cardio equipment bring unique benefits and drawbacks—all important to consider when deciding what to add to your workout schedule.

Muscles Targeted

The StairMaster primarily engages muscle groups in the lower half of your body, while the treadmill is more of a full-body workout. Climbing stairs provides a high-intensity, low-impact cardio workout that helps you build strength in your calves, quads, hamstrings, and glutes. Treadmill running also engages these muscles; however, it also strongly engages your core and upper body.

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Difficulty Level

Your workouts are what you make them, so the difference in difficulty of the StairMaster vs treadmill is entirely up to you. That said, the treadmill offers more versatility, giving users more opportunity to up their training intensity. Of course, you can always adjust the resistance of the StairMaster to increase your number of steps per minute and the demand put on your cardiovascular system.

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Both machines can serve all fitness levels, but the treadmill tends to have a steeper learning curve. Most treadmills have several adjustable settings that allow for training variety. To maximize your training, you may need to design your treadmill workouts through trial and error.

Impact on Your Joints

Road and treadmill running puts a great deal of pressure on your joints. Those with a history of joint issues in the ankles, knees, or hips may need to limit their time on the treadmills. Stair steppers, however, are a low-impact cardio machine. They typically do not stress your joints in the same way that running does.

Size and Cost

This comparison really only applies to those shopping for their home gyms and deciding between a StairMaster and a treadmill. StairMasters typically take up less room, making them more appropriate for gyms limited on space. Their mechanisms focus on vertical movement, meaning they have a compact footprint. Conversely, treadmills account for your running stride, so their belts take up much more space.

And while many different factors can influence cost, stair climbers are usually less expensive than treadmills. Still, there are plenty of affordable options for both pieces of equipment.

Here’s a quick comparison of the StairMaster SM3 Step Mill—featured on our list of the best stair climbers—and the NordicTrack Commercial 1750 treadmill.

StairMaster SM3 Step MillNordicTrack Commercial 1750
PriceAbout $3,000 (depending on retailer)Around $2,000 (depending on promo)
Footprint29″D x 46″W x 73″H80” L x 38” W x 65” H
User weight capacity275 lbs.300 lbs.
WarrantyLifetime frame, 5-year mechanical, 2-year electronics, 1-year labor10-year frame, 2-year parts, 1-year labor

Benefits of Using the Stairmaster and Treadmill

The latest Physical Activity Guidelines for Americans1 recommend that the average healthy adult get at least 150 minutes of moderate-intensity activity and two days of strength training per week. Logging time on either the treadmill or the StairMaster will contribute to those 150 minutes, but each machine gives you a different type of sweat session. And—their various mechanisms offer different benefits.

The StairMaster operates with a unique vertical movement that mimics climbing stairs. It primarily targets the lower body but helps promote muscle toning, endurance, and strength. By engaging multiple muscle groups at once, the stair stepper puts a demand on your cardiovascular system without stressing your joints. Unlike the treadmill, with its repetitive pounding, the StairMaster is gentle on the knees. Its lower-impact cardio may benefit those with joint issues looking to lose body weight and build lean muscle mass.

Woman using the Echelon Stair Climber Sport

The treadmill, known for its versatility, gives users many workout options to help prevent burnout or boredom in their cardio sessions. Treadmills can be great for steady-state cardio and HIIT workouts. They offer a full-body workout supporting weight loss and many other fitness goals.

RELATED: Steady-State Vs HIIT

No matter which type of cardio equipment has you sweating, it’s bound to benefit your overall health and expand your fitness capabilities.

Pros and Cons of Using the Stairmaster vs. Treadmill

Now that we’ve established the differences between treadmills and StairMasters, let’s break down their pros and cons:

StairMaster Pros:

  • Efficient lower-body workout: The StairMaster targets prominent muscle groups in your lower body, including your calves, quads, hamstrings, and glutes. A StairMaster workout is an effective way to tone the lower body.
  • Low-impact training: Climbing stairs is more gentle on your ankles, knees, and hip joints compared to other forms of cardio.
  • High-intensity workouts: The stair climber challenges your cardiovascular system, leading to improved endurance and increased calorie burning in a shorter workout window.
  • Space-efficient machine: The StairMaster usually has less footprint on the gym floor than other cardio machines like the treadmill. Therefore, it may be ideal for home gyms with limited space.

StairMaster Cons:

  • Limited workout variety: Stair climbers focus solely on vertical movement, which limits your workout variety. Those seeking a different type of workout will want a different cardio machine.
  • Minimal variations in movement: StairMaster machines primarily engage muscle groups in the lower half of the body, so you’re more limited in your movement.
  • Less influence on bone density: Stair climbers offer many benefits for muscle strength and cardiovascular health, but they may not provide the same bone density benefits as running.
  • May lead to overuse injuries: While the stair stepper tends to be gentler on your joints compared to running, it requires a repetitive step-up motion that can lead to overuse injuries if not performed in moderation and with proper form.

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Treadmill Pros:

  • Endless workout options: Treadmills have multiple setting adjustments that allow you to tailor your workout to fit your needs. You can adjust speed and incline, allowing you to walk, jog, run, or sprint to the finish line of your cardio workout.
  • Full-body workouts: Incline treadmills offer a full-body workout, engaging the lower and upper body to walk, jog, run, or sprint.
  • Efficient calorie burn: Since the treadmill effectively works the whole body, it’s an efficient way to increase your calorie burn.
  • Bone density benefits: Weight-bearing physical activity, like running on a treadmill, can improve bone mineral density,2 especially when combined with strength training. Improved bone health reduces the risk of developing osteoporosis.

Treadmill Cons:

  • Harsh on the joints: Running’s repetitive impact can be detrimental to the ankle, knee, and hip joints, which may cause or exacerbate joint issues. Be sure to wear supportive treadmill running shoes and practice proper running form.
  • Large footprint: Treadmills usually require more space to set up.
  • Risk of accidents: The treadmill’s moving belt is a common safety concern, especially for beginners, as its high speeds pose a risk of falls and inuries.
  • Cost: Treadmills aren’t always the most cost-effective type of cardio equipment. Many brands offer machines with bells and whistles, such as touchscreen displays and streaming capabilities, which only increase the number on the price tag.

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How To Choose Between the Stairmaster and Treadmill

If you find yourself standing between the incline treadmill and the StairMaster, unsure which to power up, we’ve got you covered. Keep these tips in mind when deciding StairMaster vs treadmill:

nordictrack elite treadmill side view
  • Consider your health and fitness goals: Determine whether you want to improve your cardiovascular endurance, build strength in your lower body, or achieve body fat loss. Steady-state cardio on a stair climber can build endurance and lower-body muscle strength, while high-intensity workouts on the treadmill can increase endurance and maximize calorie burn.
  • Assess your joint health: If you have a history of joint issues, you may need to opt for more low-impact exercise. A stair stepper is great for building muscle without excessive impact on your ankles, knees, and hip joints.
  • Consider workout variety: If you get bored quickly during cardio, you may appreciate the workout variety that treadmills offer. With their adjustable speed and incline, treadmills allow you to walk, jog, run, or sprint, meaning no two aerobic workouts have to be the same.
  • Account for space and budget: This applies mainly to those building out their home gyms. When deciding between a treadmill and a StairMaster for your home gym, you’ll need to factor in space constraints and budget concerns. Treadmills typically require more space and can occasionally be more expensive than StairMasters.
  • Consult a fitness pro: If you still can’t decide between the treadmill or the StairMaster, don’t hesitate to ask a certified personal trainer for some guidance. A CPT can help you navigate the many factors that go into achieving your fitness goals and design a workout plan incorporating the best cardio machine to fit your needs.

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Stairmaster Vs Treadmill: Final Thoughts 

If you’re looking for an intense cardio workout at the gym, you won’t have to look far if they’ve got a treadmill or a StairMaster. These powerhouse cardio machines are a guaranteed aerobic session, ideal for those looking to improve their cardiovascular health and get closer to achieving their fitness goals. 

You should account for several factors when choosing between the two machines, including your fitness goals, impact tolerance, workout variety, space, and budget. Both come with benefits and drawbacks, so select the equipment that best supports your needs as you work towards the best version of you.

  • The StairMaster primarily targets the lower-body muscle groups, while the treadmill targets both your lower and upper body.
  • The treadmill offers more workout variety with its adjustable speed and incline.
  • Stair steppers typically put less stress on your joints.
  • StairMasters are ideal for steady-state cardio, while treadmills offer other workout options, such as running hills or HIIT workouts.

Stairmaster vs. Treadmill: FAQs

Is it better to do the treadmill or StairMaster?

It really depends on your goals. Both pieces of cardio equipment can be part of a well-balanced training plan. Choose the treadmill or the StairMaster, depending on your training needs for the day.

Does StairMaster burn belly fat?

There’s no way to spot-burn fat, but burning calories on a stair stepper can lead to total body fat loss, including fat from the abdominal region.

What’s the best cardio machine for weight loss?

Weight loss requires a holistic approach incorporating moderate-intensity physical activity and strength training. Still, treadmills are excellent for burning calories because they target both upper and lower body muscle groups.

RELATED: Best Treadmill Workouts For Weight Loss

Is it OK to do StairMaster everyday?

Most certified personal trainers and fitness experts recommend against using the StairMaster every day. Stair climbers require repetitive climbing motions, leading to potential overuse injuries if not incorporated in moderation.


  1. U.S. Department of Health and Human Services. Physical Activity Guidelines for Americans. 
  2. McCormack WP, Shoepe TC, LaBrie J, Almstedt HC. Bone mineral density, energy availability, and dietary restraint in collegiate cross-country runners and non-running controls. Eur J Appl Physiol. 2019;119(8):1747-1756. doi:10.1007/s00421-019-04164-z

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