How much would it cost to change USD to Yen?

Question:

What is the best place to change USD to Yen? Can I just put Yen on a credit card? I know you can exchange currency at the airport, but does a rate apply? If so, is it a high rate?

Answer:

It's far better to buy yen after you arrive in Japan. The airport will in Japan will have a bank you can use,
but you'd do better to go to a larger Japanese post office. Actually it would be best to use your ATM at a Japanese Post Office to get yen - their machines can do it in English and the rates are good. There is often a nominal fee for the transaction; your bank can tell you how much.
It is *not* a good idea to get cash with your credit card - they have loan shark interest rates. If you are arriving in Japan on a weekend or holiday, you might bring a little yen with you before you board your flight just in case.