Large envelope postage calculator

First-Class Mail

Minimum Weight:

1. none

Maximum Weight:

1. Maximum Weight: 13 ounces (over 13 ounces, First-Class Mail becomes Priority Mail).

Letter Maximum Weight:

1. 3.5 ounces.

Minimum Quantity to Mail at Commercial Prices:

1. 500 pieces.

First-Class Mail letter-size pieces that are square, rigid or meet at least one of the nonmachinable characteristics are subject to the nonmachinable surcharge.

Flat-size pieces that are rigid, nonrectangular, or have uneven thickness will pay the parcel price.

All mailable matter can be mailed as First-Class Mail.

Some things MUST be mailed as First-Class Mail (or Priority Mail), including:

• Handwritten or typewritten material
• Bills, statements of account or invoices, credit cards
• Personal correspondence, personalized business correspondence
• All matter sealed or otherwise closed against inspection.

First-Class Mail includes:

Single-piece Presorted and automation prices are available.

Usps postage rates

First-Class Mail prices are the same regardless of how far the mail travels. That's a great deal! First-Class Mail postage

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