Shipments of the mobile devices to hit 229.3 million this year.
IDC's latest Worldwide Quarterly Tablet Tracker claims tablet shipments will grow 58.7 per cent year-on-year in 2013, rising from 144.5 million to reach 229.3 million.
In fact, the rise in tablet popularity is set to affect the PC market, passing laptop shipments this year, and all PCs desktops and laptops combined by 2015.
Apple has been dominating the tablet market from day one, but the space is increasingly supported by low-priced Android devices. The worldwide average selling price (ASP) for tablets is set to fall 10.8 per cent to $381 this year, and continue to fall further, though the ASP of a PC in 2013 is nearly double that at $635.
Screen size has also been another differentiator to support the tablet space, with the original iPad's 9.7-inch screen being challenged by seven-inch models and other options.
Ryan Reith, program manager for IDC's Mobility Trackers, said: "What started as a sign of tough economic times has quickly shifted to a change in the global computing paradigm with mobile being the primary benefactor. Tablets surpassing portables in 2013, and total PCs in 2015, marks a significant change in consumer attitudes about compute devices and the applications and ecosystems that power them.
"IDC continues to believe that PCs will have an important role in this new era of computing, especially among business users. But for many consumers, a tablet is a simple and elegant solution for core use cases that were previously addressed by the PC."
Jitesh Ubrani, research analyst for the Worldwide Quarterly Tablet Tracker, added: "Apple's success in the education market has proven that tablets can be used as more than just a content consumption or gaming device. These devices are learning companions, and as tablet prices continue to drop, the dream of having a PC for every child gets replaced with the reality that we can actually provide a tablet for every child."