What is the smallest size letter you can mail
According to the United States Postal Service (USPS), the smallest size letter that can be mailed is a "letter" size, which is defined as:
- Length: At least 3.5 inches (8.9 cm)
- Height: At least 5 inches (12.7 cm)
- Thickness: At least 0.007 inch (0.18 mm)
This size is also known as a "standard letter" or "regular letter" size. Letters that meet these dimensions can be mailed at the standard letter rate, which is currently $0.55 for a 1-ounce letter.
However, if you want to mail a smaller item, you can use a "large envelope" or "flat" size, which has the following dimensions:
- Length: At least 6.125 inches (15.6 cm)
- Height: At least 11.5 inches (29.2 cm)
- Thickness: At least 0.007 inch (0.18 mm)
Large envelopes can be mailed at a higher rate than standard letters, depending on their size and weight.
It's worth noting that the USPS also has specific rules for mailing items that are smaller than a standard letter, such as postcards, greeting cards, and catalogs. These items have their own specific size and weight requirements, and may be subject to different rates and regulations.