Backup Storage Capacity
Calculator

Plan your backup infrastructure - calculate storage needs, retention costs, and recovery objectives.

Data Source
10%
20%
Storage Results
Total Required
—
TB
Raw Backup Data
—
TB
With Buffer
—
TB
Daily Backup Size
—
GB
Full Backup Size
—
TB
Retention Days
—
total days
ℹ️ Results will appear here.
Storage Breakdown
Component Size Unit % of Total
Total Required Storage 100%
Visual Breakdown
Grandfather-Father-Son (GFS) Retention
2×
GFS Retention Summary
Total Retention Storage
Total (Raw)
—
GB
After Dedup
—
GB
Space Saved
—
GB
Max Retention
—
days
Deduplication & Compression Calculator
3×
2×
Dedup & Compression Results
Final Size
—
TB
After Dedup
—
TB
Total Saved
—
TB
Overall Ratio
—
to 1
Space Reduction
—
% saved
Storage Efficiency
—
rating
ℹ️ Results will appear here.
Size Reduction Visual
Backup Media Comparison
Media Comparison Table
Media Type Capacity Needed Est. Cost/mo Speed Durability Best For Verdict
Cost Comparison Visual
Backup Storage Capacity Calculator  |   |