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A database index size estimator calculates how much disk space database indexes will consume based on the number of rows, indexed column sizes, and index type. Indexes speed up queries but consume 20–100% of the table size in additional storage; over-indexing slows write performance.
Guide étape par étape
- 1Determine indexed columns
- 2Calculate bytes per index entry
- 3Project total index size
Exemples résolus
Entrée
1M rows, 3 indices, 8 bytes each
Résultat
~24MB total
Plus B-tree overhead
Erreurs courantes à éviter
- ✕Wrong parameters
- ✕Missing adjustments
Questions fréquentes
What does this calculator do?
Set parameters
How do I use this calculator?
Run calculation
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