Profits for the first three months of 2015 were $626m (Â£416m), and revenues were $4.45bn, a 4% increase from a year earlier.
However, eBay said that "strengthening dollar significantly impacted first quarter results".
Revenue at eBay would have been 7% higher without that currency headwind.
At payment site PayPal, currency fluctuations were less severe, hurting revenues by 3% as a result of hedging by the site.
eBay said it expected to complete its spinoff of PayPal into a separate company by the third quarter of 2015.
"I feel very good about the performance of our teams at eBay and PayPal. Each business is executing well with greater focus and operating discipline as we prepare to separate eBay and PayPal into independent publicly traded companies," said eBay chief executive John Donahoe in a statement accompanying earnings.
Shares in the site increased by over 5% in trading after markets had closed.

The 21-year-old had already been absent earlier this season with a knee problem that had limited him to just one first-grade appearance.
The Warriors have also lost prop Tony Clubb for an indeterminate spell while he undergoes an routine operation.
Clubb, 29, has a medical condition but is expected to make a full recovery.
He has played nine games this season, including the World Club Challenge success against NRL premiers Cronulla Sharks in February.
"Unfortunately sport can be cruel and this is definitely the case for both Tony and Jake," rugby director Kris Radlinski said.
"It's a tough pill to swallow but we will give them all of our support, as I'm sure will the Wigan fans and we look forward to seeing them back out on the field playing for Wigan."

The unusual move by the agency came after White House Press Secretary Sean Spicer cited claims first made on US TV channel Fox News earlier this week.
GCHQ responded by saying the allegations were "nonsense, utterly ridiculous and should be ignored".
Mr Trump has claimed that Trump Tower in New York was under surveillance.
The GCHQ claims were initially made by former judge Andrew Napolitano.
Mr Spicer quoted Mr Napolitano as saying: "Three intelligence sources have informed Fox News that President Obama went outside the chain of command.
"He didn't use the NSA, he didn't use the CIA, he didn't use the FBI and he didn't use the Department of Justice, he used GCHQ."
A GCHQ spokesman said: "Recent allegations made by media commentator Judge Andrew Napolitano about GCHQ being asked to conduct 'wiretapping' against the then president-elect are nonsense.
"They are utterly ridiculous and should be ignored."
It is unusual for GCHQ to comment directly on a report about its intelligence work, normally preferring to stick to the policy of neither confirming nor denying any activity.
But the allegations are so sensitive that the agency clearly felt they could not let them go unchallenged.
Donald Trump's claim that the Obama administration had ordered surveillance on him has generated enormous attention but with so far little evidence to back it up.
And British intelligence is clearly determined to avoid being drawn into what is an increasingly toxic row in Washington.
A Senate committee has concluded that there are "no indications" Trump Tower was under surveillance by the US government before or after the election.
The statement from Senate Intelligence Committee chairman Richard Burr dismissed Mr Trump's claim his phones were tapped.
Mr Trump had accused his predecessor Barack Obama of wiretapping Trump Tower during the presidential race.
Mr Spicer said Mr Trump maintained his claims.
Online retailer eBay has reported better-than-expected results but added that a strong dollar substantially hurt the company's results.
[NEXT_CONCEPT]
Wigan Warriors half-back Jake Shorrocks is likely to miss the rest of the season with a knee injury sustained in non-contact training.
[NEXT_CONCEPT]
Britain's communications intelligence agency GCHQ has issued a statement denying it wiretapped Donald Trump during the US presidential campaign.