Destination Guide | Tokyo Japan

Currency

Japan's currency is the Yen, which literally means "the circle" and is issued in denominations of 1,000 yen, 2,000 yen (very rare), 5,000 yen, and 10,000 yen notes, with coins appearing in denoiminations of 1, 5, 10, 50, 100, and 500 yen.
Vending machines usually accept, 10, 50, and 100 yen coins, as well as 1,000 yen notes. Increasingly, newer or reformatted machines now accept 500 yen coins, and 5,000 yen and 10,000 yen notes.

Two helpful currency conversion sites:

X-rates
Oanda