The 12 Best Adjustable Dumbbells of 2021

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Best Adjustable Dumbbells

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The dumbbell set does the work of 15 sets of weights, meaning you can trade 30 dumbbells for two.
The set also ships with two connector bars, which you can use to transform your dumbbells into a single barbell.
It does the work of 15 sets of dumbbells, helping you cut down on equipment while getting a great workout.
Instead of sliding weight plates on and off your dumbbell, you’ll remove the dumbbell’s ends and place small weight bars inside.
Allows you to choose between dumbbells that weigh 5 to 25 pounds apiece, or dumbbells that weigh 11 to 55 pounds apiece.
Work your way up from a meager 7.5 pounds per dumbbell to a whopping 100 pounds per dumbbell for a full 200 pounds to play with.
Each dumbbell can be adjusted between 5.5 to 22 pounds, which provides enough weight to get you started.
These travel-friendly dumbbells are completely hollow and can be adjusted by filling the set with water.
The set ships with two dumbbells, a connector bar, and two handles, which combine to give you plenty of exercise options.
Best for Smaller Spaces:
papababe Adjustable Dumbbells at Amazon
They ship with a connector bar you can use to turn your dumbbells into a barbell, helping you cut down on more equipment.

Weightlifting demands a fair amount of space for tackling exercises like squats and presses. You also need room to store all of the equipment that your strength-training workouts require. While you can't change how much space you take up when exercising, you can control the footprint of your workout equipment. Stocking up on adjustable dumbbells—which are designed to replace multiple sets of dumbbells while only taking up the space of a single pair—can help.

“Adjustable dumbbells provide access to an entire dumbbell rack that occupies only a fraction of space,” Prince Brathwaite, CPT, founder of Trooper Fitness, says. “Whether you are new to fitness or an avid gym-goer, the flexibility in having weight go from 5 to 50 pounds makes this piece of equipment a no-brainer for any home gym.”

Ahead, we’ve rounded up the best adjustable dumbbells worth considering for your home gym.

Best Overall: Bowflex SelectTech 552 Adjustable Dumbbells

Bowflex SelectTech 552 Dumbbells
Pros
  • Wide weight range

  • Adjusts in 2.5-pound increments

  • Easy to adjust

  • Ships with storage bases

Cons
  • May be hard to use at first

  • May lack durability

If you’re looking for a pair of best-in-class adjustable dumbbells, it’s pretty hard to top Bowflex’s SelectTech Dumbbells. The single set does the work of 15 sets of weights, meaning you can trade 30 dumbbells for just two. And since each dumbbell ranges in weight from 5 to 52.5 pounds, the set will stick with you while you improve your lifting capabilities.

To adjust the weight of your SelectTech Dumbbells, place them in their storage bases and turn the built-in dial on each weight until it meets your needs. Once you’ve landed on a number, the weights should weigh exactly what you want them to weigh—meaning you won't have to slide additional weights on and off your dumbbells.

Weight Per Dumbbell: 5 to 52.5 pounds | Total Set Weight: 105 pounds | Replaces: 15 sets of weights | Sold As: Pair

Best Budget: Besportble Adjustable Dumbbell Set

Pros
  • Beginner-friendly weight range

  • Doubles as a barbell

  • Textured for easy gripping

Cons
  • Not easy to adjust

  • Weights measured in kilograms

  • May lack durability

You don't have to spend a fortune to get a good set of adjustable dumbbells. Besportble's Dumbbell Set ships with two adjustable dumbbells and eight weight plates ranging from 2.7 to 5.5 pounds. That means you'll have up to 33 pounds to play with on each dumbbell, allowing you to work your way up from a beginner-friendly 10.8 pounds to a much more challenging 66 pounds.

The set also ships with two connector bars, which you can use to transform your dumbbells into a single barbell. This flexibility is great when you’re building strength at home, giving you three pieces of adjustable fitness equipment to add to your routine. The downside, though, is that you’ll have to adjust your weights by hand, so keep a wrench nearby for adjustments during your workout.

Weight Per Dumbbell: 5.4 to 33 pounds | Total Set Weight: 66 pounds | Replaces: Eight sets of weights | Sold As: Pair

Best Splurge: NordicTrack Select-A-Weight Dumbbell Set

Nordic Track
Pros
  • Wide weight range

  • Adjusts in 2.5-pound increments

  • Ships with storage bases

  • Free one-year iFit membership

Cons
  • Expensive

  • iFit membership expires after one year

NordicTrack’s Select-a-Weight Dumbbell Set does the work of 15 sets of dumbbells, helping you cut down on equipment while getting in a great workout. Each dumbbell can be adjusted from 10 to 55 pounds, and since the weights jump in either 2.5- or 5-pound increments, you can scale up the intensity of your workouts precisely.

To adjust the weight of your dumbbells, place them in their complementary storage trays and move the built-in blue pin to your desired maximum weight. This convenient system is easy to use, and it can cut down on the time you spend adjusting your weights mid-workout. The dumbbells also come with a free one-year membership to iFit, a digital fitness program that provides access to on-demand workouts, virtual coaching, and more.

Weight Per Dumbbell: 10 to 55 pounds | Total Set Weight: 110 pounds | Replaces: 15 sets of weights | Sold As: Pair

Best Lower Weight: NiceC Adjustable Dumbbell Pair

NiceC Adjustable Dumbbell Pair
Pros
  • Two beginner-friendly weight range options

  • Unique, low-profile design

  • Easy to adjust

  • Available in four colorways

Cons
  • Very limited weight range

  • Dumbbell ends are hard to remove

Nice C’s Adjustable Dumbbells are a great option for anyone who wants a set of lightweight, low-profile dumbbells. Instead of sliding weight plates on and off your dumbbell, you’ll remove the dumbbell’s ends and place small weight bars inside. This unique design makes the dumbbells incredibly easy to adjust, and it cuts down on the need for nuts and other hardware.

The adjustable dumbbells are available in four different colors and two set weight ranges—meaning you can choose to start with a beginner-friendly 4.5 pounds per dumbbell or a more advanced 11.2-pound weight. No matter which set you choose, you’ll have the option to begin at a 2.3-pound weight (per dumbbell) while increasing the weight of your dumbbells over time.

Weight Per Dumbbell: 2.3 to 4.5 pounds, or 2.3 to 11.2 pounds | Total Set Weight: 9 pounds, 22.4 pounds | Replaces: Four sets of weights | Sold As: Pair

Best Mid-Weight: FLYBIRD Adjustable Dumbbells

Pros
  • Two weight range options

  • Easy to adjust

  • Ships with a storage base

  • Simple design with five weight plates

Cons
  • Only ships with one dumbbell 

  • May not be very durable

Flybird’s Adjustable Dumbbells come in two different weight ranges. This flexibility allows you to choose between dumbbells that weigh 5 to 25 pounds apiece, or dumbbells that weigh 11 to 55 pounds apiece. If you snag two dumbbells, that means a total set weight of 10 to 50 pounds or a total set weight of up to 110 pounds—a significant difference for any weightlifter. 

The weights are also easy to adjust, meaning you won't have to spend extra time fidgeting with them during your workout. And since each dumbbell ships with a storage tray, you can keep your space organized while having an accessible place to swap out and scale your dumbbell. Just place it in the tray and turn the built-in dial to find a weight that fits your workout.

Weight Per Dumbbell: 5 to 25 pounds, or 11 to 55 pounds | Total Set Weight: 50 pounds, 110 pounds | Replaces: Five sets of weights | Sold As: Single

Best Heavy Weight: Yes4All Adjustable Dumbbells

Pros
  • Wide weight range

  • 200 pound total set weight

  • Durable construction

  • Available in other set weights if you want a lighter option

Cons
  • Not easy to adjust

  • Finish on plates may chip over time

It’s rare to find a set of adjustable dumbbells that reach 100 pounds apiece, but with Yes4All’s Adjustable Dumbbells, you can work your way up from 7.5 pounds per dumbbell to a whopping 100 pounds per dumbbell. The set comes with two dumbbells and 28 total weight plates. But since it replaces 12 sets of dumbbells, you can rest assured knowing you’re still saving space.

The dumbbells are crafted from diamond-knurled chrome to increase grip and hold. The plates are also made with cast iron to increase durability. The only downside, however, is that you’ll have to screw the star-lock collars (which look like large, star-shaped nuts) on and off your dumbbells every time you want to change your lifting weight.

Weight Per Dumbbell: 7.5 to 100 pounds | Total Set Weight: 200 pounds | Replaces: 12 sets of weights | Sold As: Pair

Best for Beginners: ATIVAFIT Glidetech Adjustable Dumbbells

ATIVAFIT Adjustable Dumbbell
Pros
  • Beginner-friendly weight range

  • Ships with a storage base

  • Simple design with four weight plates

Cons
  • Only ships with one dumbbell 

  • Weight plates measured in kilograms

  • Weight plates may not lock over time

If you're a first-time weightlifter, it's smart to start off with easy-to-use dumbbells that come in a beginner-friendly weight range. Ativafit's Adjustable Dumbbells have a simple design that fits this mold. Each dumbbell can be adjusted between 5.5 and 22 pounds, which should be enough weight to get you started.

While the weight range is smaller than some options, it allows you to save money on more expensive weights you might not use as a beginner. Since each dumbbell boasts a built-in slider that conveniently adjusts the weight for you, you should be able to scale the intensity of your workouts up and down with ease.

Weight Per Dumbbell: 5.5 to 22 pounds | Total Set Weight: 44 pounds | Replaces: Four sets of weights | Sold As: Single

Most Portable: Deiris Travel Weights

Pros
  • Hollow interior for travel

  • Foldable when empty

  • Lightweight when empty

Cons
  • May spring leaks over time

While most weights are filled with cement or cast iron, the Deris Travel Weights ship hollow—making them incredibly travel-friendly. Instead, the hollow interior can be filled with water to reach weights up to 22.5 pounds per dumbbell and up to 45 pounds per set.

The Deris Travel Weights are foldable when empty, which means they're easy to store in your suitcase or carry-on. And since they’re also incredibly lightweight, you won’t have to worry about your dumbbells weighing you down or pushing you closer to the 50-pound weight limit per bag. When you're ready to unpack and work out, you can easily customize the weight of your dumbbells by simply accessing running water.

Weight Per Dumbbell: 1 to 22.5 pounds | Total Set Weight: 45 pounds | Replaces: One to two sets of weights | Sold As: Pair

Most Versatile: PinRoyal 4-in-1 Adjustable Dumbbell Set

Pros
  • Three weight options

  • Serves as dumbbells, a barbell, a kettlebell, or a pair of push-up handles

  • Small, space-friendly

Cons
  • Not easy to adjust

  • May not be very durable

Some adjustable dumbbell sets ship with a connector bar, which allows the dumbbells to double as a barbell. PinRoyal’s 4-in-1 Adjustable Dumbbell Set takes this idea a step further by shipping with two dumbbells, a connector bar, and two handles, to give you plenty of exercise options. Using just one weight set, you can craft a pair of dumbbells, a barbell, a kettlebell, and a pair of push-up handles.

The adjustable weight set is available in three different weights, including 44, 66, and 88 pounds. Choose the lightest option to customize your dumbbell (or your kettlebell) to weigh between 5.5 and 22 pounds, or choose the heaviest one to work your way from 5.5 to 44 pounds.

Weight Per Dumbbell: 5.5 to 22 pounds, 5.5 to 33 pounds, 5.5 to 44 pounds | Total Set Weight: 44 pounds, 66 pounds, 88 pounds | Replaces: Four sets of weights | Sold As: Set (pair, plus handles, kettlebell base, and connector)

Best for Smaller Spaces: papababe Adjustable Dumbbells

papababe Adjustable Dumbbells
Pros
  • Five weight range options

  • Doubles as a barbell

  • Crafted from chrome steel

Cons
  • Not easy to adjust

  • Paint on plates may peel over time

Most adjustable dumbbell sets are small space-friendly by allowing you to replace several sets of dumbbells for just one. But some, like Papbabe’s Adjustable Dumbbells set, take space-saving to a new level by shipping with a connector bar to help you cut down on even more equipment.

The set is available in five weights, ranging from up to 20 pounds to up to 100 pounds. So whether you’re lifting for the first time or you're an avid weightlifter, it shouldn’t be hard to find a set that suits your needs. Not only can you adjust the dumbbells individually, but you can also use the connector bar to turn them into a barbell.

However, everything has to be screwed on by hand, so adjusting your weights may take a little time out of your workout.

Weight Per Dumbbell: 4 to 20 pounds, 4 to 25 pounds, 4 to 30 pounds, 4 to 52.5 pounds, 4 to 100 pounds | Total Set Weight: 40 pounds, 50 pounds, 60 pounds, 105 pounds, 200 pounds | Replaces: Four to 12 sets of weights | Sold As: Set (pair, plus connector)

Best Classic: Merax Deluxe Adjustable Dumbbells

Pros
  • Wide weight range

  • Easy to adjust

  • Ships with storage bases

  • Two-year warranty

Cons
  • May be hard to use at first

Merax’s Deluxe Adjustable Dumbbells are a classic option that weighs in at 11 to 71.5 pounds apiece. The dumbbells ship in a set alongside two complementary storage trays that offer a way to keep your weights tidy in addition to providing a place for easy weight adjustment.

Simply place your dumbbells in the storage trays, then turn their built-in dials to adjust their weights. Within moments, you should have dumbbells that are exactly as heavy as you want them to be—meaning you can dedicate less time to fidgeting with your weights and more time crushing your workouts.

Weight Per Dumbbell: 11 to 71.5 pounds | Total Set Weight: 143 pounds | Replaces: 12 sets of weights | Sold As: Pair

Best All-in-One: PowerBlock Elite Dumbbells

PowerBlock Elite Dumbbells
Pros
  • Adjusts in 2.5-pound increments

  • Easy to adjust

  • Replaces 16 sets of dumbbells

Cons
  • May be tedious to adjust in small increments

  • The pair ships in two boxes, which may arrive at different times

If your goal is to replace as many sets of dumbbells as possible, PowerBlock’s Elite EXP Adjustable Dumbbell will help you accomplish the task. Each dumbbell boasts a weight range of 5 to 50 pounds, and since you can adjust each dumbbell’s weight in 2.5-pound increments, you can replace a whopping 16 sets of dumbbells by investing in a single pair.

Of course, this incremental approach to weight adjustment isn’t just good for saving space. It also grants you the nuance and precision you need to comfortably scale up your workouts over time. This capability is great for beginners and experts, alike.

Weight Per Dumbbell: 5 to 50 pounds | Total Set Weight: 100 pounds | Replaces: 16 sets of weights | Sold As: Pair

What Our Editors Say

"These adjustable dumbbells allow for the most versatility when it comes to weight selection and the exercises that you can perform with them. I love that I can quickly adjust the weight that I’m using from exercise to exercise and use it for both my upper body workouts (that typically require lighter weight) and my lower body workouts (during which I favor heavier loads). Although the weights adjust from 5 to 50 pounds, they’re relatively compact, and the handles are easy to grip so my hands don’t slide during lifts. I also love the included two 2.5-pound add-on weights that allow for even more customization when it comes to weight selection." — Isabella Broggini, Commerce Editor and Certified Personal Trainer, Verywell Fit and Mind

Final Verdict

Bowflex’s SelectTech Dumbbells (view at Amazon) are a best-in-class option that can replace 15 sets of dumbbells. Each one ranges in weight from 5 to 52.5 pounds apiece, meaning they’ll give you a beginner-friendly place to start and plenty of room to grow as you intensify your workouts. The dumbbells are also genuinely easy to use thanks to their quick-change design that allows for simple adjustment.

What to Look for in an Adjustable Dumbbell

Weight

Any time you’re shopping for weightlifting equipment, the actual weight should be a key factor. Consider your experience as a lifter and find a set that suits your needs and skill level. Remember that sets can range from light (2 to 11 pounds per dumbbell), to heavy (11 to 70 pounds per dumbbell), to wide-ranging (4 to 100 pounds per dumbbell). 

You'll also want to keep in mind increment jumps. “Especially for weight under 25 pounds, you may want the weight to go up in small increments,” Marita Martina Gumbs, CPT, Fight 2B Fit DC Lead Trainer, says. “Going from 10 pounds to 20 pounds—or even 10 pounds to 15 pounds—can be tough to handle.” If you want more control over your workouts, look for a set that increases in smaller, more nuanced increments.

Efficiency

How many dumbbell sets are you trying to replace? Depending on weight range and increment size, adjustable dumbbell sets can replace between 4 to 15 dumbbell sets (and sometimes, even more). 

Unit Size

Some adjustable dumbbells are sold as singles, and others are sold as pairs. This is key to keep in mind as you compare prices, consider weights, and ultimately buy a set of dumbbells. You should also check whether the weight in the product description describes a single dumbbell or a full set. (You’ll be disappointed if you get a 20-pound set, thinking you ordered two 20-pound dumbbells. And you’ll also be disappointed if you receive one dumbbell, thinking you ordered a full set.)

FAQs

How do adjustable dumbbells work?

Most adjustable dumbbells come equipped with some kind of lock. Unlock the dumbbells, and you can add or remove weight as you see fit—usually by turning a dial or sliding a slider to a given number. This number signals how much you want the dumbbell to weigh, and the dumbbell will use it to determine how much weight to add or drop. 

Some manually adjustable dumbbells won’t do this work for you. Instead, you’ll have to remove the collars from your dumbbells and add or remove weight plates until you reach your desired weight.


Are adjustable dumbbells safe?

Adjustable dumbbells can be safe, but it’s important that you follow the directions for your specific set. If you don’t lock your dumbbells properly, weights could fall off of them mid-workout—leading to potentially serious injuries.

Brathwaite notes that spinlocks may be tougher to use than other locks, and he specifically recommends Bowflex’s SelectTech Dumbbells (view at Amazon) for their ability to be used easily and safely.

Why Trust Verywell Fit?

Verywell Fit writer Lindsey Lanquist has years of experience in the health and fitness space. For this piece, she prioritized adjustable dumbbells that were easy to use and genuinely well-reviewed by those who’d tried them. She also made sure to feature adjustable dumbbells in a range of different weights and styles. After all, personal preference can vary a lot—and you deserve an adjustable dumbbell set that meets your precise needs. 

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