How many photos can a 16GB SD card hold?

About 3,757 JPEG photos at 12 MP or 1,878 at 24 MP; roughly 563 RAW files.

Is a 2GB or 4GB card still usable?

For JPEG shooting, yes — 2GB holds about 469 photos at 12 MP. They're too small for RAW or video work, and many are older, slower cards worth replacing for reliability.

Memory Card Calculator

How Many Photos Do Small SD Cards Hold? (2GB–16GB)

Quick answer: a 16GB card holds about 1,878 JPEGs at 24 MP; an 8GB about 939; a 4GB about 469; a 2GB about 234.

Card	12 MP JPEG	24 MP JPEG	24 MP RAW	1080p video
2GB	469	234	70	14 min
4GB	939	469	140	29 min
8GB	1,878	939	281	57 min
16GB	3,757	1,878	563	114 min

These sizes ship with older compacts, trail cameras and dash cams. Fine for JPEG stills; for RAW or any serious video, step up to 64GB or 128GB.

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What are you shooting?

Memory card size

Camera resolution

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Based on usable capacity (~93% after formatting). JPEG ≈ 0.33 MB per megapixel, RAW ≈ 1.1 MB/MP, phone HEIC ≈ 3 MB, 1080p ≈ 130 MB/min, 4K ≈ 375 MB/min. Real sizes vary by camera.

Bigger Cards

↑ Open the calculator 64GB →128GB →256GB →512GB →1TB →32GB →2TB →