How big can a 6.2-megapixel digital photo be enlarged? The effect is better.

Here is a detailed table.

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According to 150PPI, the data comparison table of the largest photo that can be developed by a digital camera (inches).

5 million pixels effective 49 15200, pixel 2560X 1920. The size of the developable photo is 17X 13, and the diagonal is 2 1 inch.

4 million pixels effective 387 1488, pixel 2272X 1704. The size of the developable photo is 15X 1 1, and the diagonal is 19 inch.

3 million pixels effective 3 145728, pixel 2048X 1536. The size of the developable photo is 14X 10, and the diagonal is 17 inches.

2 million pixels 1920000 is valid, pixel 1600X 1200. The size of the developable photo is 1 1X8, and the diagonal is 13 inch.

1.3 million pixels effective 1228800, pixel 1280X960. The developable photo size is 9X6, diagonal 1 1 inch.

800,000 pixels, effective 786,432, pixel 1024X768. The developable photo size is 7X5, and the diagonal is 9 inches.

500,000 pixels, 480,000 pixels, 800X600 pixels. The developable photo size is 5X4, and the diagonal is 7 inches.

300,000 pixels are effective, 307,200 pixels are 640X480. The developable photo size is 4X3, and the diagonal is 5 inches.

As can be seen from the above table:

A 5-inch photo (3X5) with 800X600 resolution is enough.

6-inch photo (4X6), resolution 1024X768.

7-inch photo (5X7), resolution 1024X768.

8-inch photo (6X9), resolution 1280X960.