Over the past 20 years, e-commerce has steadily risen in size and reach. According to Statista’s Digital Market Outlook, roughly 270 million Americans will make an online purchase this year, spending a total of $548 billion. But how big is e-commerce really in the grand scheme of things? This chart, based on data from the U.S. Census Bureau, shows the impact of online shopping on total retail sales in the U.S. is still smaller than many people might think. In the first quarter of 2019, e-commerce accounted for 10.2 percent of total retail sales, the third highest share ever and the first double-digit share for a non-holiday quarter.