TIFF is abbreviation for Tagged Image File Format and is one of the most common digital image formats. Each pixel in the TIFF format contains the full information for all three colour channels, red, green and blue. This results to a large file size, 24 bits or 3 bytes per pixel. Many professional photographers prefer to work with TIFF files when editing images since the TIFF image format delivers high quality images.

For calculating the TIFF format’s file size in our digital image storage table we have used the following method. We multiplied the digital camera’s sensor resolution, total amount of pixels or even called megapixel, by the number of colour channels for each pixel and then multiplied by the bits for each colour channel. For example a file size of a digital image taken by a 2 megapixel digital camera can be calculated as follows:

2 000 000 pixels x 3 colour channels x 8 bits per colour channel
=48 000 000 bits = 6 000 000 bytes = 5.72 MB

In some cases the TIFF format is using lossless image compression, meaning it compresses a digital image when saved and decompressing the image again when opened to being identical to its original, without any quality loss during the process. The above calculations are referring to uncompressed TIFF format.

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