Revenues jumped 31 per cent to USD 30.4 billion, Amazon said in stronger-than-expected results.
While Amazon developed a reputation for delivering little or no profit in its retail operations, its earnings have been growing over the past year as it expands into video and new delivery services and boosts its cloud computing unit, Amazon Web Services (AWS).
The strong profit came a year after earnings of USD 92 million which began a string of improvements for Amazon.
The company has also been building loyalty with its Amazon Prime subscription service, which provides access to its online video and music as well as fast delivery for most items.
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Amazon has also been expanding globally, notably to India.
"It's been a busy few months for Amazon around the world, and particularly in India -- where we launched a new AWS region, introduced Prime with unlimited free shipping, and announced that Prime Video is coming soon, offering Prime members in India exclusive access to Amazon Original Series and Movies -- including original content featuring top Indian creators and talent," said Amazon founder and chief executive Jeff Bezos in a statement.
Amazon has offered few details on its Prime subscriber base or the number of its Fire brand devices sold.
But analysts at Consumer Intelligence Research Partners estimated Amazon Prime now has 63 million US members, spending on average about USD 1,200 per year, compared to about USD 500 per year for non-members.
In its statement Amazon said its second annual "Prime Day" was the biggest day ever for Amazon, and was also a record day for Amazon devices globally.
Amazon has been bringing in customers to Prime by touting its streaming video which competes with the likes of Netflix and Hulu.
Its Amazon Studios received 16 Emmy nominations for its original programs.