Deduplication Calculator
Calculate storage savings from data deduplication. Enter original data size and deduplication ratio to find how much space you save.
How to Use the Deduplication Calculator
- Enter original data size in GB.
- Enter the deduplication ratio (e.g., 3 for 3:1).
- Click Calculate to see deduplicated size and savings.
Use Cases
- •Evaluating storage hardware with built-in deduplication.
- •Estimating savings from backup deduplication.
- •Planning VDI storage with dedup-capable arrays.
- •Comparing dedup solutions for cost justification.
Formula
Deduplicated size = Original / Dedup ratio. Savings = (Original − Deduped) / Original × 100%.
Frequently Asked Questions
What is a deduplication ratio?
Dedup ratio indicates how much data is eliminated. A 3:1 ratio means 3 GB of data stored as 1 GB after dedup.
What dedup ratios are typical?
Virtual desktop environments: 10:1–50:1. General file storage: 2:1–5:1. Backup data: 10:1–30:1.
Does deduplication work with encrypted data?
No — encryption makes data appear unique, eliminating dedup effectiveness. Encrypt after deduplication.