Video Compression Savings Calculator
Compare original and compressed video sizes to see the space saved and percentage reduction.
How to use Video Compression Savings Calculator
1. Enter Original File Size, Compressed File Size, File Size Unit. 2. Both sizes must use the same unit. A negative saving means the resulting file is larger. This calculates entered sizes and does not compress media. 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?
Both sizes must use the same unit. A negative saving means the resulting file is larger. This calculates entered sizes and does not compress media.
How the calculation works
Saved quantity = original − compressed; saving percentage = saved ÷ original × 100. Both sizes must use the same unit. A negative saving means the resulting file is larger. This calculates entered sizes and does not compress media. 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: Original File Size = 100; Compressed File Size = 60; File Size Unit = "MB". Result: 40 MB saved (40%).
Practical tip
Check the input labels and assumptions against the video compression savings task before reusing the number.
Frequently asked questions
What exactly does Video Compression Savings Calculator calculate?
Saved quantity = original − compressed; saving percentage = saved ÷ original × 100.
Which units or counting rules apply?
Both sizes must use the same unit. A negative saving means the resulting file is larger. This calculates entered sizes and does not compress media.
Does this inspect, change or upload my files?
This page calculates the entered values or text in the browser. Numeric image/media tools do not transform files. Check the worked example and stated counting basis; the result does not certify device, search-engine or accessibility outcomes.