Embedding Storage Estimator — Vector DB Cost Calculator

Corpus & Chunking

Number of documents

Average document length (characters)

Chunk size (characters)

Chunk overlap (characters)

Preset model

Embedding dimensions

Vector precision

Metadata per vector (bytes)

Index overhead factor (e.g. HNSW ≈ 1.5)

Replication / backup factor

Storage cost ($ / GB / month)

Chunks per document —

Total vectors —

Bytes per vector (raw) —

Raw storage —

With index overhead —

Total storage (with replication) —

Estimated monthly cost —

Estimated annual cost —