What is the most popular greeting card size?

- Oct 11, 2019-

What is the most popular greeting card size?

Some standard sizes are 5 x 7, or 4 x 6. The small size such ad thank cards are 3.5 x 5. The standard sizes are A1 and A7 for greeting cards.

...

The typical greeting card sizes are as follows:

5x7 (with an A7 envelope)

4 1/2 x 6 1/8 (A6 envelope)

4 1/4 x 5 1/2 (A2 envelope)