After 3.5 ounces, the item moves up to large envelope rates. The current rate as of 2016 for an 11 ounce large envelope is $3.18.
To mail an envelope weighing 3.2 ounces, you would typically need two first-class stamps, as one stamp covers up to 1 ounce, and additional ounces require extra postage. The current rate for additional ounces is around 20-24 cents per ounce, depending on postal regulations. It's always best to check with your local postal service for the most accurate and up-to-date rates.
The first ounce or less: 44 centsMore than one ounce but not over 2 ounces: 61 centsMore than two ounces but not over 3 ounces: 78 centsMore than three ounces but not over 3.5 ounces: 95 centsIf over 3.5 ounces, the letter is subject to the large envelope rate.As you letter weighs 4 ounces, but less than 5 ounces, it is subject to the large envelope rate. The large envelop rate for four ounces is $1.39. Which means you will need to use 4 forever stamps (44 cent stamps).
The cost to mail a 2-ounce medium envelope will depend on the postage rate for that particular envelope type (e.g., First-Class, Priority Mail). You can check the current postage rates on the official website of the postal service you are using.
At that weight, it would be classified as a large envelope rather than a letter. As of 2016, the rate is $3.04.
Letters Weight Not OverPrice1 ounce$0.442 ounces$0.613 ounces$0.783.5 ounces$0.95
To mail a 9x12 envelope weighing 3.8 ounces, you typically need two First-Class stamps, as the first ounce costs one stamp and each additional ounce costs an extra stamp. Since the envelope weighs 3.8 ounces, it falls into the 3-ounce rate category, which requires two stamps. Check with your local postal service for any changes in rates or requirements.
For a standard envelope weighing 1.4 ounces, you would typically need to use the first-class postage rate. As of my last update, a first-class stamp covers up to 1 ounce, so you would need to add additional postage for the extra 0.4 ounces. Check the latest postal rates on the USPS website or at your local post office, as rates may vary.
From May 2009 to late 2011 in the US, the one-ounce first class rate was 44 cents. The rate for a second ounce was only 17 cents, for a total of 61 cents. (Assuming that the letter is neither a large envelope or a thick envelope, which are charged at different base rates.) Major mailers were eligible for reduced rates for pieces between 1 and 2 ounces when they included a return reply envelope.
The postage is $1.76 for a standard letter envelope of 2 oz.
To mail an envelope weighing 1.5 ounces in the United States, you typically need two first-class stamps. The first stamp covers the base rate for up to 1 ounce, and the second stamp accounts for the additional weight. Always check the current postal rates, as they can change.
Since the envelope is 5.25 X 5.25 inches square, the postage is .70 cents for first class. This rate is for an envelope that weighs .5 ounces. The postage may be higher depending on the weight of the envelope.