Download Percentage Complete Calculator

See what percentage of a file download is complete from downloaded size and total file size.

How to use Download Percentage Complete Calculator

1. Enter Downloaded Amount, Total File Size, File Size Unit. 2. Use the same size units for both values. Transferred quantity must be from zero to the positive total; inconsistent values are rejected. 3. Select Calculate or press Enter. 4. Select Copy result to copy the answer, or Reset to clear the form and result.

Why use this tool?

Use the same size units for both values. Transferred quantity must be from zero to the positive total; inconsistent values are rejected.

How the calculation works

Completion = transferred quantity ÷ total quantity × 100. Use the same size units for both values. Transferred quantity must be from zero to the positive total; inconsistent values are rejected. Counts and dimensions use the declared rounding convention; other numbers display up to three decimal places where applicable. Nonzero subsecond durations are labelled. Durations round to the nearest second; nonzero subsecond durations are labelled. File-size output units are decimal. Changing an input label does not convert filled values.

Example

Worked example: Downloaded Amount = 25; Total File Size = 100; File Size Unit = "MB". Result: 25%.

Practical tip

Check the input labels and assumptions against the download percentage complete task before reusing the number.