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Photo-copy storage planner
Estimate logical storage per complete copy and across all copies, with explicit units and optional planning headroom.
Processed in this browser, with no submission, storage or tracking.
Inputs and checks
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Result from your inputs
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Numbers display up to 6 decimal places. Nonzero values below 0.000001 use scientific notation. Calculations use the unrounded inputs.
Method and assumptions
- Logical bytes per complete copy = photo count × average file size in bytes. Total logical bytes = that value × total complete copies.
- Planning headroom multiplies each copy and the total by (1 + percent ÷ 100). Omitted headroom is 0%.
- MB and GB use powers of 1,000; MiB and GiB use powers of 1,024. Copies means all complete copies, not extra copies beyond an original.
- The supported total is at most 1,000,000,000,000,000 planned bytes (1 PB), including headroom. Display rounding does not change the calculation.
What this tool can tell you
- Average-size assumptions omit export metadata, edits, videos and duplicates unless you include them in the estimate. Logical capacity is not a measurement of a disk or cloud account.
- No file, photo library or cloud account is accessed. Capacity does not establish independent backups, completed copies, recoverability or media reliability.