How much does it cost to send a post card to Japan/Germany? (From U.S)?

Question:

My relatives live there and I live in the U.S, and I'm sending them a postcard once a week-
I looked it up and was told that it's about 0.90-1.20 to send a postcard, but it also says like 0.20 cents or 0.44. I don't want to pay too much, but I'm also worried it won't go through if I don't have enough. Help!

Answer:

For both countries:

First-Class Mail® International Postcard
Maximum size 6" length x 4-¼" height $0.98

Source(s):
http://postcalc.usps.gov/ ..