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Download Time Calculator

Enter the file size and your download speed to see how long the download will take in seconds, minutes or hours.

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🔒 Inputs are processed locally in your browser.

Calculate download time from file size and speed

Enter file size and download speed to see how long the download will take.

  1. Set File size, Size unit, Download Mbps, Efficiency %.
  2. Use Calculate to process the input.
  3. Compare the result with your source data and return to the input to make corrections.
Size unit
GB / MB / TB

Input and settings example

File size
20
Download Mbps
100
Efficiency %
90

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Related references: Digital storage units · SI prefixes & units