Birthday Card Sizes For Every Need + Party Planning Tips

Birthdays are a great time to get together with friends and family members to celebrate. If you’re hosting the party, you’re likely putting together some fun invitationsto let your friends and family know the details of the celebration. Once your event is over, you’ll want to send your guests off with a thank you note and a cute party favor. And if you’re attending a party, it’s always a good idea to bring a birthday greeting card along with a memorable birthday gift for your loved one.

When you’re choosing your invitations, thank you notes and birthday cards, one of the first things you’ll want to decide on is the size of your cards. As you’re choosing the cards’ sizes, there are a few things you’ll want to keep in mind, including the theme of the party and the details you want to include. Read on to learn more about standard birthday card sizes as well as some tips for hosting a fun, memorable birthday party below.

Popular Birthday Card Sizes

CATEGORY/STYLE	CARD SIZE (IN)	ENVELOPE SIZE (IN)	BEST FOR
A7-Standard	5×7	5¼ x 7¼	Greeting cards, invitations, thank you cards
Square	5 x 5	5 ¼ x 5 ¼	Greeting cards, thank you cards, invitations
A2- Compact	4 ¼ x 5 ½	4 ⅜ x 5 ¾	Invitations, thank you cards, RSVP cards
A10-Large	6 x 9	6¼ x 9 ¼	Greeting cards, large invitations
A1	3 ½ x 5	3 ⅝ x 5 ¼	Invitations, thank you cards, RSVP cards
A9-Large	5 ½ x 8 ½	5 ⅝ x 8 ⅝	Greeting cards, invitations

Unsure about what size birthday card to get for your loved one? Here are some of the standard birthday card sizes along with some ideas for sizes for invitations and thank you cards.