Kettlebell Weight for Beginners and Which Size to Buy First

You want one kettlebell for home training, and the shop page lists a dozen sizes from 4 kg to 32 kg. Pick too light and you will outgrow it in a month. Pick too heavy and your first swings will pull on your lower back instead of your hips. Getting the kettlebell weight for beginners right is mostly about matching the bell to the exercises you will actually do.

I have coached a lot of people through their first year of kettlebell training, and the same handful of sizes work for almost everyone. Here is how to choose without guessing.

The short answer on kettlebell weight for beginners

If you only read one paragraph, read this one. For most beginners, these starting weights work well:

Notice that one weight does not cover everything. Your hips are far stronger than your shoulders, so the bell that feels right for a swing will feel heavy overhead. That gap is the main reason people end up disappointed with a single purchase.

Why the exercise decides the weight

Kettlebell exercises fall into two groups.

Ballistic hip movements such as the two hand swing and the deadlift are driven by your glutes and hamstrings. These are your strongest muscles, so they need a heavier bell. A bell that is too light turns the swing into an arm lift, which teaches the wrong pattern.

Grinding upper body movements such as the overhead press, the row, and the goblet squat rely more on shoulders, arms, and upper back. These need a lighter bell, especially for presses, where most beginners can handle roughly half of what they swing.

So the real question is: which group will you do most? If your plan is mostly swings, buy for swings. If it is a general full body workout for beginners with presses and squats, buy for those first.

A simple test before you buy

If you can borrow bells at a gym or a sports shop, try this in five minutes.

1. Goblet squat test. Hold the bell by the horns at chest height and do 10 squats. If you finish with good form and could manage 3 to 5 more, it is a good goblet squat weight.
2. Press test. Clean the bell to your shoulder and press it overhead 5 times with each arm. If the fifth rep is slow but clean, that is your press weight.
3. Deadlift test. Do 10 deadlifts with the bell between your feet. If it feels easy, go up one size for swings. Swings use the same hinge but add speed.

Do not test swings with an unfamiliar bell until you have learned the hinge. Deadlifts give you a safe proxy.

The common advice I would ignore: "start light and work up"

For most training gear, starting light is sensible. For kettlebell swings, it can backfire. A 6 kg or 8 kg bell is so light that people can lift it with their arms and shoulders, and they never learn to drive the movement with their hips. Then, when they move to a heavier bell, the bad habit comes with them and their lower back takes the strain.

A moderately heavy bell, such as 12 kg or 16 kg, forces a proper hip hinge because your arms simply cannot do the work. I have seen more beginners get the swing right in one session with a 16 kg bell than in a month with an 8 kg bell. Start with a weight that challenges your hips, not one that is merely comfortable to hold.

The exception is overhead pressing. There, light really is right, and grinding out a too heavy press is how shoulders get irritated.

One bell, two bells, or adjustable

If budget allows only one, buy the swing weight. You can do goblet squats, deadlifts, rows, and swings with it, and do presses with a lighter dumbbell or a band in the meantime. Our guide to what resistance bands are actually good for explains how bands can fill that gap for shoulder work.

If you can afford two, buy a pair that are one or two sizes apart, for example 12 kg and 16 kg, or 16 kg and 24 kg. That covers almost every beginner program for a full year.

Adjustable kettlebells exist and save floor space, usually ranging from about 5 kg to 18 kg in one unit. They cost $120 to $200, which is about the price of two cast iron bells. The handles are often bulkier and the plates can rattle during swings, so I treat them as a space saver rather than a better option.

What to look for in the bell itself

• One piece cast iron. Avoid bells with a welded or screwed on handle. They can loosen over time.
• A smooth, unpainted or lightly coated handle. Thick glossy paint gets slippery when your hands sweat. A light powder coat gives better grip.
• Enough room for two hands. For swings, you want both hands on the handle with a little space. Measure the inside width if you have large hands; around 9 cm or more is comfortable.
• A flat base. The bell should sit level so you can use it for push up holds and renegade rows.

Expect to pay roughly $2 to $3 per kilogram for a decent cast iron bell. Competition style steel bells cost more and keep the same size at every weight, which is nice but not necessary for home training.

When to move up a size

A good rule is to move up when you can do the top of your rep range with good form for two sessions in a row. For swings, that might be 3 sets of 15 with a strong hip snap. For presses, 3 sets of 8 per arm. Jumps between sizes are usually 4 kg, which is a big step, so expect a few weeks of lower reps after each change. You can browse other ideas for building a home setup in our gear and equipment section.

Frequently asked questions

Is an 8 kg kettlebell too light for a beginner?

For swings, usually yes, because it lets you lift with your arms instead of your hips. For overhead presses and some upper body work, 8 kg is a sensible start for many women and for anyone new to pressing.

What size kettlebell should a woman start with?

Most women new to lifting do well with 12 kg for swings and deadlifts and 8 kg for presses. Women with some gym experience often start at 16 kg for swings. Test a goblet squat and a press if you can before buying.

Should I buy one heavy kettlebell or two lighter ones?

Two different sizes are more useful than two of the same, because your lower body and upper body need different loads. If you can only buy one, choose the weight that suits swings and deadlifts and use bands or a dumbbell for presses.