You have probably heard or read that the color of buttons on your website can have a significant impact on conversion rate. But, did you know that the shape and size of the button also matters? Buttons are a very important part of your conversion rate strategy. The whole point of having a button on your website is so someone will click it and take some type of action whether its signing up for your mailing list, adding a product to a shopping cart, downloading a report, etc. So doing everything you can to encourage visitors to click is a wise move.

The shape of Amazon’s add to cart button is no accident. There is actual science behind it. Buttons with rounded corners have been shown to convert better than those with sharp corners. Your brain processes rounded corners more easily. Sharp corners can act like arrows sending people’s attention away from the button. Whereas rounded corners tend to pull attention to what’s inside the button — your call to action.

Even the size of a button matters. We are all busy people trying to absorb an incredible amount of information on a daily basis. We usually scan through pages rather than read them. So it is easy to pass right over something unless it stands out. Larger buttons tend to stand out and pull better than smaller ones do.

Remember test, test, and test. It is the only way to know how well your buttons are performing.