Photo storage capacity calculator
RAW, HEIF and JPEG sizes vary, so the average file-size input is intentionally editable.
GB
%
MB
Photos that fit
19 200
- Usable storage
- 115 200 MB
- Photos per decimal GB
- 167
Show the working
- Storage capacity = 128
- Reserved or already used = 10
- Average photo size = 6
- Usable storage = 128*1000*(1-10/100) = 115 200
- Photos that fit = floor(115 200/6) = 19 200
- Photos per decimal GB = 1000/6 = 166.667
Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.
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The formula
- photo count = usable megabytes / average megabytes per photo
Storage vendors use decimal gigabytes; operating systems may display the same bytes using binary units.