USPS Cost: Current Prices & Fees

USPS does not have one price. What you pay depends on the service you pick, the weight or box size, how far the package travels, and whether you add tracking-style extras on top. A letter, a flat rate box, and a ten-pound parcel are priced on three different tables, which is why a search for "USPS cost" returns such a wide spread of numbers.

This guide maps the main services to the jobs they suit. It covers the parcel service most people use, the flat rate options, and the add-on fees that raise a receipt past the base postage. The figures come from the official retail price list, last checked Oct 14, 2026.

Most standard parcels go by USPS Ground Advantage. Postage is set by weight and by zone, and the zone is a measure of distance between the origin and destination ZIP codes. The low end of each range below is a nearby delivery and the high end is the farthest zone in the continental table.

Two things stand out. Light parcels barely change in price: a small package up to four ounces sits in a narrow band whether it goes across town or across the country. Heavier parcels spread out much more, so a ten-pound box can cost more than twice as much to the far zone as to a neighbor. If you ship the same box regularly, the destination matters as much as the weight.

Priority Mail flat rate packaging works the other way around. You pay one price for the box size, whatever the distance and within the weight limit for that packaging. That makes flat rate attractive for dense items going far away, and poor value for light items going nearby.

A quick test: price the same item both ways. If you are mailing books or tools to the opposite coast, the box often wins. If you are sending a light sweater two states over, Ground Advantage usually costs less. Packaging for flat rate is only available from USPS, so factor in a trip or an order for the boxes.

Mail that fits the letter and flat categories is priced per piece and per ounce, not by zone.

These are the entry prices at one ounce. Heavier letters and oversized envelopes step up in price by weight, and odd shapes such as rigid or lumpy envelopes are charged as parcels instead. Stamped letters carry a slightly higher price than metered ones.

The base postage is often not the whole bill. Extra services are priced separately and added at the counter or in the online label flow.

Each one does a different job:

• Certified Mail gives you a mailing receipt and a record of delivery, which matters for legal and tax paperwork.
• Signature Confirmation records who signed for the package, which suits valuable shipments.
• Insurance covers loss or damage up to the declared value, and the fee climbs as the coverage amount rises.

Buy only what the shipment needs. A sweater does not need a signature, while a laptop or a legal notice probably does.

Several factors move the final price:

• Retail or commercial pricing. Customers who print labels through approved online tools can qualify for commercial rates, which are lower than the retail counter price. The tables here are retail.
• Size. Large boxes can be charged on dimensional weight instead of actual weight, so a light but bulky package may price like a heavier one.
• Surcharges. Non-standard packaging, extra length, and delivery on Sundays or holidays carry additional fees that the base tables do not include.
• Price changes. USPS updates its prices on a schedule, and the official price list is the final word. Check it before you budget for a large mailing.

Weigh the package at home on a kitchen or postal scale and choose the smallest box that protects the contents. Compare Ground Advantage with a flat rate box for the same item, and skip extras you do not need. For regular senders, printing labels online instead of at the counter is the usual way to reach commercial pricing. Remember also that a package over a size limit changes category, so measure all three dimensions.