The money will help preserve the rotting watchtowers, barracks and other buildings that testify to the greatest crime in history.
The Auschwitz-Birkenau Fund was set up in 2009 to gather money to maintain the original camp. The camp was operated by the SS in occupied Poland during the Second World War until it was liberated on 27 January 1945 by Soviet troops. More than 1 million people, mostly Jews, died in the camp's gas chambers or through forced labour, disease or starvation.
"Germany acknowledges its historic responsibility to keep the memory of the Holocaust alive and to pass it on to future generations," Foreign Minister Guido Westerwelle said in a statement. "Auschwitz-Birkenau is synonymous with the crimes of the Nazis. Today's memorial recalls these crimes."
Most urgently in need of repair are the 45 brick barracks of the women's camp in the Birkenau section of the camp.