I was charged $3.78 recently for online postage for shipping one chip to Australia from an transaction. That's what the USPS calculator that John linked to shows, too. I listed $3.50 for international shipping in my auction ad, and the bidder gave me low marks on for shipping charges, even though my cost was more than the actual shipping charge.

If you ship at the small-package rate - which most post offices consider bubble mailers these days - the prices have risen about 50 percent in recent months for international shipping.