How to use Real Disk Capacity
Enter the required values, choose the relevant options, and read the instant result. Use Reset to restore the default example and Copy result when you need to save the output.
Free online calculator
Real Disk Capacity
Estimate binary disk capacity shown by operating systems.
Data
Real Disk Capacity
Estimate binary disk capacity shown by operating systems.
Web app
Real Disk Capacity
Runs locally. Works on mobile and desktop.
Result
Table of contents
Similar calculators
About this calculator
Estimate binary disk capacity shown by operating systems. The calculation runs entirely in your browser, so the page stays fast and does not require uploads.
Good checks
Review units before comparing results, keep inputs positive when the formula requires it, and round only after the final answer when precision matters.