Filter Results
Show Results


At OnBuy, you can discover an incredible selection of dumbbells and dumbbell sets just waiting to upgrade the workout routines of fitness-fanatics and athletic amateurs alike. Whether you prefer the look and feel of textured rubber dumbbells or the sleek and stylish exterior of chrome dumbbell sets, our online range boasts both hex and adjustable dumbbells to suit every preference. 

Showing 1-60 of 580 results

Sort By:
  • Popularity
  • Average Rating
  • Price (highest)
  • Price (lowest)
  • Newest

Looking to buy Dumbbells?

Upgrade your home gym equipment and take your workout routine to the next level with a pair of dumbbells from our vast selection of strength training equipment here on OnBuy. Suitable for both beginners and seasoned weightlifting professionals alike, our collection of dumbbells for sale are available in a variety of weights, materials, packages and household names, including vidaXL and many more, to ensure you smash through those fitness goals!

From reliable hex dumbbells for aerobic workouts to adjustable chrome dumbbell sets and smooth neoprene hand weights, toning and building muscle mass couldn't be easier with a pair of dumbbells ready and waiting in your home gym. Eager to buy dumbbells or check out dumbbell sets for sale now? We can help you find the perfect exercise accessory below!

Dumbbells for beginners

Thanks to the incredible array of dumbbells and weights to choose from, these pieces of kit are ideal for encouraging beginners to get involved with weightlifting. You can buy weights as light as 1kg or as hefty as 20kg, perfect to use both alongside cardio or as an exercise in its own right. If you're looking to build up your arms, shoulders and chest, dumbbells can provide even amateurs with gradual yet effective results if they opt for a set of various dumbbell weights.

Once you've warmed up your muscles, you can begin testing out which weight you should start with. Start by testing out the lightest dumbbell set you've acquired with a simple bicep curl. In general, starting with a lighter set and working your way up to heavier set is encouraged by fitness professionals.

While you may be tempted to opt for the heavier set straightaway to build muscle mass, a lighter pair of dumbbells can be just as useful for stabilising the muscle in order to support your joints and tendons for a more effective and comfortable workout. For women, 2-5kg sets of dumbbells tend to be a good place to start whilst men can tackle weights between 5-10kg weights. 

Making gains

In order to really build up arm and shoulder muscle, a common misconception is that you need to use barbells (big and heavy barbells to be specific!) but this isn't the case! A lot of lean muscle can be easily gained using nothing more than a pair or set of dumbbells. Lightweight to medium-weighted dumbbells in particular can allow you to tone muscles and even gain muscle mass in a compact area that doesn't require frequent visits to the gym or a generous floor space.

As such, dumbbells are ideal for anyone living in a small apartment or cosy abode that wants to stay in shape and even fill out their physique with some extra muscle. If you're looking to build muscle, sticking with one set pair of weighted dumbbells offers little room for progress, so opting for an adjustable dumbbell set lets your progress at a pace that suits you.

Adjustable dumbbells are available in numerous weighted increments and are easy to change by altering the lever, dial or pin mechanism. Swapping between different plates is therefore a cinch with a pair of adjustable dumbbells. While dumbbells and dumbbell sets are fantastic for effectively building mass, they can also prove to be handy tools for adding resistance and additional weight to aerobic exercises. 

For an even more intense strength-training workout, you can either buy free weights or get your hands on a set of kettlebells to use alongside your dumbbells. These superb pieces of kit can be used just like a standard dumbbell for weight training or can be used as a nifty accessory to enhance cardio fitness. If used correctly, you can burn up to 600 calories in just half an hour with a kettlebell, perfect if you're limited on time but still want to get in an intense workout! With so many kettlebells and weight sets for sale, you'll have a variety of options.

By multi-tasking your muscle use, you can burn fat and tone areas all your over body without spending hours stuck on a monotonous treadmill at the gym - what's not to like? So, why not invest in some dumbbells and buy weights online? You're sure to love seeing the satisfying results!

Customers love our best-selling Dumbbells

Popular Brands in Dumbbells

Living And Home
Gym Master
Body Revolution

Our most popular Dumbbells

Delivery Address

Sign in to view all of your delivery addresses


Enter your delivery address

Wait! You have something in your basket!

Did you know we can save your basket and send it to you?
Simply enter your email address below.

No thanks, I'd rather miss out

This page has expired.

Please refresh the page to continue shopping.

Refresh and continue