Disk Space Equation:
From: | To: |
The Mac Disk Space Calculator helps you determine how much storage space is being used on your Mac by calculating the difference between total disk capacity and available free space.
The calculator uses the simple equation:
Where:
Explanation: This calculation shows how much of your total storage is currently occupied by files, applications, and system data.
Details: Monitoring disk space helps prevent performance issues, allows for proper system maintenance, and helps you manage storage efficiently.
Tips: Enter total disk capacity and available free space in gigabytes (GB). Both values must be valid (total > 0, free between 0 and total).
Q1: Where can I find my Mac's disk information?
A: Go to Apple menu > About This Mac > Storage tab to see your disk information.
Q2: What's considered a healthy amount of free space?
A: It's recommended to keep at least 10-15% of your total disk space free for optimal performance.
Q3: Why does my used space seem higher than expected?
A: macOS uses some space for system files, caches, and temporary files that may not be visible in normal file browsing.
Q4: How often should I check my disk space?
A: Regular checks (monthly) are good practice, especially if you frequently install large applications or work with large files.
Q5: What can I do if I'm running low on space?
A: Consider deleting unnecessary files, emptying Trash, clearing caches, or moving files to external storage or cloud services.