How many pictures can I fit on a flash card?

• Resolution: The higher the resolution, the bigger the file will be.
• Compression: Your camera might give you the option of choosing a compression format (such as JPEG or TIFF) or taking uncompressed photos. Uncompressed files are the largest, and compression formats vary in size.
• Colors: RGB photos (format for viewing on a monitor) are three times as big as black-and-white photos, and CMYK photos (format for printing) are four times as big as black-and-white.
• Your camera model and the shooting conditions: Each camera gives slightly different results, and you might even get a different number of photos per card depending on the subject you are shooting and the current light conditions. Taking those factors into consideration, the following charts can give you some general guidelines for how many pictures average users can fit on various sizes of flash cards

By default, most digital cameras will use their highest possible resolution with best possible image quality. While this produces the best possible photos, it also means each image takes up more space on the flash memory card, decreasing the number of images you can save on your card.

8 megapixel camera (3264 x 2448)
File size: 4.2MB

7 megapixel camera (3056 x 2296)
File size: 3.7MB

6 megapixel camera (2848 x 2136)
File size: 3.2MB

5 megapixel camera (2,592 x 1,944)
File size: 2.5MB

4 megapixel camera (2,272 x 1,704)
File size: 2MB

3 megapixel camera (2,048 x 1,536)
File size: 1.2MB

2 megapixel camera (1,600 x 1,200)
File size: 0.9MB (900 kb)