The Obama administration has not yet calculated the cost of military action in Libya, according to White House spokesman Jay Carney.
Carney said he believes there are "some contingency funds built into the Defense Department budget for this kind of thing."
"I don't want to get into numbers because I'm not an economist," Carney quipped. He said the administration is working on an official estimate.
He also pushed back against numbers reported by various studies and news outlets, which estimate an average cost of $1 billion so far.
"Some of the numbers that have been floated out there are far higher than we expect them to be," he said.