Microsoft 365 planning tool
Pre-Migration Deduplication Savings Estimator
Estimate transfer time and storage avoided by removing verified duplicates before migration.
Transfer volume avoided
180 GB
- Line-rate transfer time avoided
- 5 hr
- Destination storage avoided
- 180 GB
Avoided transfer GB
Estimated transfer hours saved
Reduced destination footprint
How it works
A useful answer in three clear steps.
- 1
Enter verified duplicate storage
Complete this check before moving to the next decision.
- 2
Add effective transfer speed
Complete this check before moving to the next decision.
- 3
Compare cleanup time with migration savings
Verify the final result against your current cloud drive or organizational policy.
Frequently asked questions
Before you use this tool
Is the Migration Dedup Savings free to use?
Yes. You can use this tool in the browser without creating an account or installing software.
How accurate is the Migration Dedup Savings?
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 Migration Dedup Savings?
Compare cleanup time with migration savings. Source cleanup can change migration manifests; freeze and re-export inventories after approval.
Keep exploring
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Tenant Duplicate Savings
Estimate recoverable storage across a Microsoft 365 user population from sampled duplicate rates.
Cleanup ROI Calculator
Compare estimated cleanup savings with staff time and implementation cost.
Cleanup Hours Estimator
Estimate review effort from file count, automation coverage and manual review speed.
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.