Australia's contribution will increase from $26 million a year to $50 million by 2016 for developing countries in the region.
The funds will provide contraception, reproductive health services and family planning information.
"All women have a right to basic reproductive health care and family planning advice," Foreign Minister Bob Carr said in a statement on Thursday.
"Good family planning reduces maternal and child deaths, and is fundamental to improving economic outcomes for women and girls.
"That's why Australia is making this new commitment to funding family planning in our region, and why we'll be pushing others in the global community to follow suit."
Australia also will commit to a global effort to raise up to $2 billion for family planning services.
It will reach up to 120 million more people by 2020, prevent an estimated 100 million unwanted pregnancies and help prevent about 200,000 deaths in pregnancy or childbirth.
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