What size envelopes can be mailed with one stamp
In the United States, the United States Postal Service (USPS) offers a variety of envelope sizes that can be mailed with a single Forever Stamp, which currently costs $0.55.
Here are the standard envelope sizes that can be mailed with one stamp:
- Letter Envelope: 3.5 inches (8.9 cm) long, 6.125 inches (15.6 cm) high, and 0.007 inch (0.18 mm) thick. This is the standard size for most business and personal correspondence.
- Large Envelope: 6.125 inches (15.6 cm) long, 11.5 inches (29.2 cm) high, and 0.25 inch (6.4 mm) thick. This size is often used for sending documents, such as contracts or certificates, that are too large for a standard letter envelope.
Keep in mind that these sizes are for standard, rectangular envelopes. If you have a non-standard or irregularly shaped envelope, it may require additional postage.
It's also important to note that the USPS has specific guidelines for envelope size and shape, including:
- The envelope must be at least 3.5 inches (8.9 cm) long and 6.125 inches (15.6 cm) high.
- The envelope must not exceed 12 inches (30.5 cm) long and 15 inches (38.1 cm) high.
- The envelope must not be thicker than 0.5 inch (12.7 mm).
If your envelope exceeds these dimensions, you may need to use additional postage or a larger envelope.