Choosing the weight of the kettle bell depends on your physical fitness level and training objectives. If you have a certain fitness foundation, such as you can comfortably lift 14 kg dumbbells, then you can consider choosing a slightly heavier kettle bell.

According to some suggestions, the average man can consider starting with 16 kg. If your goal is to increase strength and muscles, you can choose a slightly heavier kettle bell. If your goal is to improve heart and lung function and burn fat, you can choose a lighter kettle bell.

Remember, choosing the weight of the kettle bell will make you feel challenged when you perform a series of repetitive actions, but it won't make you feel too difficult when you finish the last repetitive action. If you find yourself unable to control the kettle bell when performing an action, then you may have chosen an overweight weight.

Before starting to use new training equipment, it is recommended to consult a coach or a professional to ensure that your training method is safe. Good luck with your training!