How Many Stamps Do I Need By Weight: A Quick Guide

How much weight a single Forever Stamp can cover depends on the current First-Class Mail single-piece letter rate. As of my last knowledge update in September 2021, this rate was $0.41 for a 1-ounce letter. This means that one Forever Stamp, which is designed for mailing a standard-sized letter, is suitable for covering the postage cost of mailing a letter weighing up to 1 ounce at the prevailing rate. It’s important to note that postal rates may change over time, so it’s advisable to check with your local postal service for the most up-to-date information on postage rates and the weight a Forever Stamp can cover.

How many stamps are required for a letter weighing 4 ounces? To determine the correct postage for your letter, consider its weight. For instance, if your letter weighs three (3) ounces, you’ll need one Forever stamp and two additional ounce stamps. However, if your letter is on the heavier side, reaching the maximum weight of 3.5 ounces, USPS will require a total of four stamps: one Forever stamp and three additional ounce stamps. This is because that extra half-an-ounce necessitates its own postage stamp to ensure proper postage coverage. This information is accurate as of January 12th, 2022.