How do I calculate how much postage I need for a letter or parcel?

    The amount of postage you need for a letter is determined by the weight, size and destination of your item. Add-on options such as additional insurance also affect cost.

    For postage rates on items from other countries, check the postal website of the originating country.

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    Look up U.S. postal rates.

    Look up the postal website of your originating country.