Photo File Size Estimator

The size of an image file depends on how many pixels it has and how many bits describe each one, and knowing this helps you plan storage and pick memory cards. This calculator estimates the file size from your megapixel count and bit depth. It shows the uncompressed size, a realistic RAW size after the mild lossless compression cameras apply, and a typical JPEG size at high quality. Enter your resolution and bit depth, then add your memory card size, and it tells you roughly how many photos of each type will fit. RAW files preserve the most detail for editing but eat storage quickly, while JPEG saves space at the cost of some flexibility. This is useful before a shoot, a trip, or an event where you cannot swap cards easily. All the math runs in your browser, so nothing you enter is sent to a server.