A C5 envelope, which is designed to fit an A5 paper, measures 6.4 inches by 9 inches. A5 is a paper size, not an envelope size.Continue Reading
The ISO organization, which is an abbreviation for the Greek word for equal, sets internationally recognized paper sizes. The United States and Canada are the only countries that do not follow these standards.
There are three series of sizes: the A and B series define paper sizes and the C series sets envelope sizes. Numbers in each series correspond. For example, A4 paper fits in C4 envelopes.
A5 paper measures 8.27 inches by 5.83 inches. A4 is the most commonly used paper size internationally, similar to the standard 8-by-10-inch paper used in the U.S.Learn more about Mail & Shipping
Tips for correctly addressing an envelope for easier mailing include using all capital letters, no punctuation and black ink on white paper. Other tips entail not omitting directionals such as "East" and "West" and taking the time to include an apartment number or correct ZIP code.Full Answer >
A standard letter envelope that weighs up to one ounce requires 49 cents in postage as of August 2014. The United States Postal Service also allows customers to use one forever stamp to mail letters weighing up to an ounce.Full Answer >
The attention line must always be at the top of a delivery address, which should be parallel to the letter's longest side and in the center of a standard letter envelope. The address should be left-justified.Full Answer >
The sender's address is the return address and it should be placed on the front of the envelope in the upper left-hand corner. The delivery address as well as the postage should also be placed on the front of the envelope.Full Answer >