OneDrive storage tool
OneDrive Storage Usage Calculator
Calculate used, free and percentage-used OneDrive storage from your quota figures.
Quota used
72%
- Free capacity
- 28 GB
- Status
- Capacity available
Used percentage
Remaining capacity
Simple capacity status
How it works
A useful answer in three clear steps.
- 1
Enter total quota
Complete this check before moving to the next decision.
- 2
Enter currently used storage
Complete this check before moving to the next decision.
- 3
Compare the result after cleanup
Verify the final result against your current cloud drive or organizational policy.
Frequently asked questions
Before you use this tool
Is the Storage Usage Calculator free to use?
Yes. You can use this tool in the browser without creating an account or installing software.
How accurate is the Storage Usage Calculator?
The arithmetic uses the values you provide. Its usefulness depends on whether those inputs represent the real drive, team or transfer conditions, so treat the result as a planning estimate.
Can this tool delete or change my cloud-drive files?
No. This page does not connect to your cloud account and cannot rename, move or delete files. It produces an estimate, analysis or checklist for you to review.
What should I do after using the Storage Usage Calculator?
Compare the result after cleanup. Microsoft may combine storage across services for some account types; use the figures shown in your account.
Keep exploring
Related storage planning tools
Storage Growth Forecast
Project future OneDrive usage from current storage and average monthly growth.
Storage Full-Date Calculator
Estimate when a OneDrive quota will be full at the current monthly growth rate.
Duplicate Storage Cost
Estimate the direct storage cost of retaining duplicate data over time.
Ready to measure duplicate storage with real data?
Choose OneDrive or Dropbox for a read-only scan, then review exact fingerprint matches before any cleanup decision.