This calculator requires the use of Javascript enabled and capable browsers. This script allows for the calculation of the reduced file size after a propose compression sequence of a given ratio. Enter the current size of the file. Click on Calculate to see the various calculated file sizes for the proposed compression reduction. The algorithm works on file sizes above 10kb. The units designation of kb, mb, gb or larger is not important as long as you understand that the reduction is based on the ratio and is in the same units designation. The terminology is sometimes ambiguous in that a compression ratio of 2 to 1 indicates the compressed file is about one half the original size, while a compression ration of 10 to 1 is about a tenth of the original size.
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