Usps Rates 2024 Packages Calculator. You get competitive prices and fast delivery every day, all year, with limited exceptions, to most u.s. — the usps announced an increase in prices for several shipping services on january 21, 2024.
First class mail service is an affordable option for shipping lightweight packages. — dimensions of packages shipped cannot be greater than 18 inches, volume less than.5 cubic feet and have a total weight of less than 20lbs.