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USPS First-Class Mail Guide (2026)

Navigate current USPS postage rates, delivery speeds, and mailing rules for First-Class letters—or skip the post office entirely.

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ARTICLES

Illustration of a letter with four paths out: print and stamp it yourself, take it to the post office counter, use an online mail service, or print at a library or shop and then mail it.

LETTERS ·

How to Send a Letter: The 4 Practical Ways, Compared

Address and stamp a paper letter, or compare four practical ways to send one: your mailbox, the post office, an online service, or a print shop first.

Diagram showing that First-Class Mail has four prices rather than one — stamped letter, metered letter, postcard, and large envelope — with format determining the price before weight.

FIRST-CLASS MAIL ·

First-Class Mail Rates 2026: Stamp & Letter Prices

A qualifying 1 oz domestic letter costs $0.82 stamped or $0.78 metered. Compare common postage prices, then check complete domestic and international rate tables.

Envelope on a desk beside an analog clock and mail tray.

FIRST-CLASS MAIL ·

First-Class Mail Delivery Time: How Long a Letter Takes

USPS delivers First-Class Mail in 1–5 days. Get the expected delivery day for your two ZIP codes, learn how USPS counts the days, and plan a letter that has a deadline.

Editorial illustration of envelopes, a red letter sorter and bundled correspondence.

FIRST-CLASS MAIL ·

Can You Track First-Class Mail? Know Your Options

A regular First-Class letter has no tracking number. Here's how to get one with Certified Mail or Priority Mail, how to add a signature, and what each costs.

A narrow cream envelope overlaps a larger navy document envelope beside red measurement brackets and a ruler.

FIRST-CLASS MAIL ·

First-Class Mail Size and Weight Limits for Letters and Large Envelopes

Which business envelopes mail as letters, how many pages fit in one ounce, and what pushes an envelope into a surcharge or package prices.

Illustration of a stamped envelope on a postage scale beside a row of stamps marked 1, plus, plus and a question mark.

FIRST-CLASS MAIL ·

How Much Does It Cost to Mail a Letter? 2026 Totals and Stamps Needed

One Forever stamp covers a standard 1 oz letter. Price the letter you are actually holding: extra ounces, large envelopes, square cards, Certified Mail, and how many stamps each one needs.

Editorial illustration of envelopes, a red letter sorter and bundled correspondence.

LETTERS ·

How to Fold a Letter for a Window Envelope (With Template)

Crease at 3-7/8 and 7-1/2 inches with the address facing out. Where the address sits for two common #10 window envelopes, a Word template, and a quick test before you print.

Editorial illustration of envelopes, a red letter sorter and bundled correspondence.

LETTERS ·

How to Format a Letter With Two Signatures

Two people, one letter: one closing, two signature blocks side by side or stacked. Copyable examples, whose name goes first, and how to get both signatures onto one PDF.

Editorial illustration of envelopes, a red letter sorter and bundled correspondence.

LETTERS ·

How to Address a Letter to Two People (or More)

Two names on one letter, or one letter each? The inside address, salutation and cc line for couples, colleagues, two addresses and whole committees, with examples to copy.

Editorial illustration of envelopes, a red letter sorter and bundled correspondence.

LETTERS ·

Enclosure on a Letter: Notation, Order and Examples

Where the enclosure line goes, how to count or list what's inside, plainer words than "please find enclosed", and a quick check that every listed page makes it into the envelope.

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