How many photos fit on a 64GB card?

It depends on your camera and settings. A 24MP camera shooting RAW+JPEG (14-bit lossless) produces roughly 30MB per shot, fitting about 2,100 photos on a 64GB card. Shooting JPEG fine only, you get around 7,600 photos.

Does RAW bit depth affect file size much?

Yes. 14-bit RAW files are about 17% larger than 12-bit files. A 24MP camera produces roughly 25MB per 14-bit lossless RAW versus 21MB per 12-bit file. Over a full card, this difference adds up significantly.

Should I shoot lossless or lossy RAW compression?

Lossless compression reduces file size by about 40% with no quality loss. Lossy compression reduces size by about 55% with very minor quality differences that are invisible in most situations. Uncompressed RAW files are the largest.

How much video time does a memory card hold?

At 4K 100Mbps, a 64GB card holds about 85 minutes of video. Higher bitrates (400Mbps for 8K or ProRes) fill cards much faster. Always carry spare cards for video work.

PhotoCalcs

Memory Card Calculator \u2014 Photos per Card

Calculate how many photos fit on a memory card at your camera settings.

Card Capacity

Enter the card capacity

File Format

Enter the file format

Camera Megapixels

Camera resolution in megapixels

RAW Bit Depth

Audio bit depth (bits per sample)

How We Calculate This

Calculation Method

RAW size = Megapixels \u00D7 1M \u00D7 (Bit depth / 8) \u00D7 Compression factor
JPEG size = Megapixels \u00D7 0.35MB (fine) or 0.2MB (normal)
Photos = Card capacity / Average file size
Burst time = Photos / 10 fps
Video time = Card capacity / Bitrate (4K at 100Mbps)

Frequently Asked Questions

Last updated: March 2026

All calculations are estimates based on standard optical and photographic formulas. Results may vary with specific equipment.