Windows Drive Exact Partition Calculator

Partition Size Calculator

Partition Shrink Calculator

How to Use the Calculator

This tool helps you calculate the exact size for creating partitions on a Windows disk.

Enter partition size in GB: File system: NTFS

This tool helps you calculate the exact size for shrinking partitions on a Windows disk.

Total size before shrink (MB): Enter required size in GB:

Partition Size Calculator:

1. Enter the desired partition size in GB in the input field provided.
2. Select the file system type from the dropdown menu (e.g., NTFS).
3. Click the "Calculate" button to see the equivalent size in MB.
4. The result will display the exact size you need to create the partition in MB.
5. Click the "Clear" button to reset the input fields.

Partition Shrink Calculator:

1. Enter the total size before shrink in MB in the input field provided.
2. Enter the required size in GB in the input field provided.
3. Click the "Calculate" button to see the amount of space to shrink in MB and the new partition size in MB.
4. The result will display the amount to shrink and the new partition size.
5. Click the "Clear" button to reset the input fields.