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High Resolution Photo File Size Estimates: 2026 Data & Format Averages
High Resolution Photo File Size Estimates: 2026 Data & Format Averages A high resolution photo's file size starts as width × height × 3 bytes for a 24-bit color image, so a typical 12-megapixel photo (4000×3000) is 36 MB uncompressed and shrinks to about 3.6 MB as a JPEG at 80% quality. Based on 55 real UseCalcPro sessions, the median photo people estimate is exactly that: 4000 pixels wide, 3000 tall, 24-bit color, JPEG quality 80. Run your own dimensions through the Image File Size Calculator(/tools/image-file-size-calculator) to get the exact figure for any format. I run the data behind UseCalcPro's utility tools. Across 55 sessions the median width landed on 4,000 px and the median height on 3,000 px — a clean 12 MP frame, which is exactly what a phone or entry mirrorless camera produces. The median color depth was 24-bit (n=55) and the median JPEG quality was 80...
