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Vector Database Sizing Calculator

Estimate storage requirements, memory needs, and costs for your vector database deployment. Configure your embedding model, data volume, and performance requirements to get accurate sizing recommendations.

Input Mode

Calculate vectors from document size using chunking (recommended for RAG applications)

Vector Configuration

Latest OpenAI embedding model with highest performance

Number of dimensions in each vector

Precision affects storage size and performance

Index affects search performance and storage overhead

Data Volume & Growth

Total size of documents to be chunked and embedded

Tokens per chunk (256-512 is optimal for RAG)

Average bytes per token (4 for English text)

Additional metadata stored with each vector

Storage Requirements

Number of data copies for high availability

Indexes in RAM, vectors memory-mapped on disk

Percentage of vectors to keep in RAM cache

Maximum connections per node in HNSW graph

Reduce storage at cost of CPU overhead

Sizing Results

Configure your vector database to see sizing results

Roadmap

Launch v1.0!
Multi-database support (Pinecone, Weaviate, Qdrant)
Performance benchmarking
Cost optimization recommendations
Integration with cloud pricing APIs