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Storage & Transfer Calculator

Runs on your deviceCalculatorFree to use
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See why storage shows less than the box says, how many photos and videos fit, and how long copying takes.

Workspace
Preparing your workspace…
Files and inputs stay on your device. Use Reset to clear this workspace.

Useful to know

Why does my 128 GB phone show less?

About 9 GB is the 1,000 vs 1,024 counting difference, and the system and preinstalled apps take more.

How much does 4K video use?

On iPhones about 170 MB a minute at 4K 30 fps (HEVC), so 10 GB holds roughly an hour.

Where are my files and inputs processed?

This tool processes your entries on your device. It does not upload them or save them in an account. Downloads remain on your device; Reset clears the current tool workspace.

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