💾 Database Size Calculator
Estimate Database Size
With Precision & Speed
Stop guessing storage requirements. Instantly calculate MySQL, PostgreSQL, and cloud database sizes based on rows, columns, and indexes — trusted by 12,000+ developers.
What is the Database Size Calculator?
A sophisticated storage estimator that predicts database size based on row count, column data types, index structures, and overhead. Perfect for capacity planning, cloud cost estimation, and migration projects.
Powered by industry-standard formulas for MySQL, PostgreSQL, MongoDB, SQL Server, Oracle, and SQLite. Stop over-provisioning or running out of space — plan with confidence.
Real-time calculations
Cloud budget accuracy
Everything you need to plan database capacity
Precision storage estimation for every engine.
Multi-Engine Support
Estimate size for MySQL, PostgreSQL, MongoDB, SQL Server, Oracle, and SQLite with engine-specific overhead formulas.
Index Size Calculator
Accurately estimate B-tree, hash, and full-text index overhead based on indexed columns and row count.
Data Type Breakdown
Factor in INT, VARCHAR, TEXT, BLOB, and JSON column sizes with accurate byte-per-type calculations.
Growth Projection
Estimate database size over 1, 3, 12 months based on monthly row growth rates.
Cloud Cost Estimator
Convert database size to monthly AWS RDS, Google Cloud SQL, or Azure Database costs instantly.
Backup Size Planning
Estimate full, incremental, and differential backup sizes plus retention storage requirements.
How the Database Size Calculator works
From schema to accurate size estimate in seconds.
Select DB engine
MySQL, PG, MongoDB, etc.
Enter row & column data
Row count, data types
Add index details
Indexed columns & types
Get size estimate
Storage + cost breakdown
Unlock storage savings & efficiency today
Stop over-provisioning or running out of space unexpectedly.
By right-sizing database instances based on accurate projections.
Forecast growth and provision ahead of time.
See exactly how indexes impact total storage.
Know exact storage requirements before moving.
Trusted by DBAs, developers & architects
Real-world applications that deliver measurable storage optimization.
Database Administrators
- Plan capacity for production databases
- Estimate index storage overhead
- Forecast growth for budgeting
- Optimize table schema for storage
- Plan backup retention requirements
Cloud Architects
- Right-size RDS/Aurora instances
- Compare storage costs across cloud providers
- Plan multi-AZ storage needs
- Estimate IOPS requirements
- Optimize cloud database spend
Software Developers
- Design efficient database schemas
- Estimate local development DB size
- Plan test data volumes
- Optimize data type selections
- Forecast production storage needs
Data Engineers
- Estimate data warehouse size
- Plan ETL storage requirements
- Forecast analytics database growth
- Optimize partition strategies
- Budget for data lake storage
Why SEOScaleUp leads the market
Built on official database documentation and real-world benchmarks.
Engine-accurate formulas
Our calculations follow official MySQL, PostgreSQL, and MongoDB storage specifications.
Privacy-first approach
No data storage, no signup. Your schema data never leaves your browser.
Industry standard
Trusted by 12,000+ DBAs and featured in cloud migration guides.
SEOScaleUp vs alternatives
No hidden costs. Unlimited estimates.
| Feature | SEOScaleUp ✓ | Manual Spreadsheet | Premium Tools ($99+) |
|---|---|---|---|
| Database engines supported | 6 engines | ✗ | ~ 3-4 engines |
| Index size estimation | ✓ B-tree/Hash/Full-text | ✗ | ✓ |
| Data type byte calculator | ✓ 20+ types | ~ Manual | ✓ |
| Growth projection | ✓ 1-12 months | ✗ | ✓ |
| Cloud cost estimator | ✓ AWS/GCP/Azure | ✗ | ~ Limited |
| Backup size planning | ✓ Full/Incremental | ✗ | ✓ |
| No signup required | ✓ Free forever | ✓ | ✗ Paywall |
| Export results | ✓ PDF/CSV | ~ Manual | ✓ |
| Compression estimation | ✓ InnoDB/MyISAM | ✗ | ~ Basic |
Frequently Asked Questions
Everything about the Database Size Calculator.
Ready to optimize your database storage?
Join 12,000+ developers who saved 35% on cloud costs using our storage intelligence.
🔒 No credit card • No signup • Instant results
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