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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.

Guia passo a passo

1Determine indexed columns
2Calculate bytes per index entry
3Project total index size

Exemplos resolvidos

Entrada

1M rows, 3 indices, 8 bytes each

Resultado

~24MB total

Plus B-tree overhead

Erros comuns a evitar

✕Wrong parameters
✕Missing adjustments

Perguntas frequentes

What does this calculator do?

Set parameters

How do I use this calculator?

Run calculation

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