| Country | Exchange rates |
| Afghanistan | afghanis (AFA) per US dollar - 50 (2007), 46 (2006), 47.7 (2005), 48 (2004), 49 (2003) |
| Akrotiri | euros (EUR) per US dollar - 0.6827 note: on 1 January 2008 Akrotiri and Dhekelia adopted the euro along with the rest of Cyprus |
| Albania | leke (ALL) per US dollar - 79.546 (2008 est.), 92.668 (2007), 98.384 (2006), 102.649 (2005), 102.78 (2004) |
| Algeria | Algerian dinars (DZD) per US dollar - 63.25 (2008 est.), 69.9 (2007), 72.647 (2006), 73.276 (2005), 72.061 (2004) |
| American Samoa | the US dollar is used |
| Andorra | euros (EUR) per US dollar - 0.6827 (2008 est.), 0.7306 (2007), 0.7964 (2006), 0.8041 (2005), 0.8054 (2004) |
| Angola | kwanza (AOA) per US dollar - 75.023 (2008 est.), 76.6 (2007), 80.4 (2006), 88.6 (2005), 83.541 (2004) |
| Anguilla | East Caribbean dollars (XCD) per US dollar - 2.7 (2007), 2.7 (2006), 2.7 (2005), 2.7 (2004), 2.7 (2003) note: fixed rate since 1976 |
| Antarctica | void |
| Antigua and Barbuda | East Caribbean dollars (XCD) per US dollar - 2.7 (2007), 2.7 (2006), 2.7 (2005), 2.7 (2004), 2.7 (2003) note: fixed rate since 1976 |
| Arctic Ocean | void |
| Argentina | Argentine pesos (ARS) per US dollar - 3.1636 (2008 est.), 3.1105 (2007), 3.0543 (2006), 2.9037 (2005), 2.9233 (2004) |
| Armenia | drams (AMD) per US dollar - 303.93 (2008 est.), 344.06 (2007), 414.69 (2006), 457.69 (2005), 533.45 (2004) |
| Aruba | Aruban guilders/florins (AWG) per US dollar - NA (2007), 1.79 (2006), 1.79 (2005), 1.79 (2004), 1.79 (2003) |
| Ashmore and Cartier Islands | void |
| Atlantic Ocean | void |
| Australia | Australian dollars (AUD) per US dollar - 1.2059 (2008 est.), 1.2137 (2007), 1.3285 (2006), 1.3095 (2005), 1.3598 (2004) |
| Austria | euros (EUR) per US dollar - 0.6827 (2008 est.), 0.7345 (2007), 0.7964 (2006), 0.8041 (2005), 0.8054 (2004) |