About these USPS price calculators
Radif Partners turns the price files the Postal Service publishes on Postal Explorer into one question answered in one screen: what a package of this weight costs from this ZIP Code to that one, at the counter and online, today and from January 17, 2027. The zone comes from the official domestic zone chart, the prices from Notice 123, the January 2027 figures from the proposed tables filed with the Postal Regulatory Commission on November 12, 2026. We are not the Postal Service, sell no label and ask for no account.
Why these postage calculators exist
Someone mailing a package asks a plain question: how much, from my ZIP Code to theirs, and is there a cheaper way. The official calculator answers one service at a time and needs the shape of the box first; label sellers answer after you create an account; many price pages online still show last year's prices or leave out the fuel surcharge. In November 2026 the question had a second part: what changes on January 17, 2027.
The Postal Service publishes its prices as a spreadsheet of several dozen sheets and its zones as a chart per ZIP Code prefix; carrier calculators ask you to sign in, and price pages online quote last year or forget the fuel surcharge. This site reads both files and answers in one screen: what a package of this weight costs from your ZIP Code to theirs, at the Post Office and with an online label, today and from January 17, 2027, with the proposed 11% fuel surcharge counted.
Who publishes it
The site is published by Radif Partners, a company that builds calculators on public data. It is an independent site, not the United States Postal Service and not affiliated with it. It sells no label, takes no commission, carries no affiliate link and asks for no account or contact details.
Radif Partners
49 rue du Ressort
63000 Clermont-Ferrand, France
contact@usparcelrates.com
What it relies on
The Notice 123 price files of July 2026, October 2026 and January 2027 (proposed), the domestic zone chart effective November 1, 2026 for 914 origin prefixes, the Domestic Mail Manual chapters on each service and on extra services, the Postal Service releases of March 25 and November 12, 2026, and the filings portal of the Postal Regulatory Commission.
What it leaves out
UPS and FedEx prices, which could not be read at their source; negotiated business prices; international mail. The method page lists every simplification and the editorial policy explains corrections.
Contact
contact@usparcelrates.com, for a price that changed or a rule we read wrong. We cannot track a package or file a claim: only the Postal Service can.