Database Growth Calculator – Future DB Size
Project database size growth over time from current size and growth rate.
About This Calculator
Project database size growth over time from current size and growth rate. Use the calculator above for instant results.
Worked Examples
- Month 12: 313.8 GB | Growth: 3.1× in 1 year
Answer: 313.8 GB in 12 months
- Month 12: 1,795 GB (~1.75 TB)
Answer: 1.75 TB in 12 months
- Month 6: 149 GB | Month 12: 445 GB
Answer: 445 GB in 12 months
Who Uses This Calculator?
Plan database capacity.
Size storage for growing applications.
Database infrastructure planning.
Cloud database scaling.
Common Mistakes to Avoid
❌ Compound growth is exponential
10% monthly growth = 3.1× annually. Most people underestimate exponential growth. Always calculate, don't estimate mentally.
❌ Growth rate changes over time
Early stage: rapid growth. Mature product: slower growth. Model different scenarios.
Frequently Asked Questions
How to measure actual growth rate?
Compare database size week over week for 4 weeks. Use that average as monthly growth rate adjusted for weeks.
Archiving reduces growth
Move old records to cold storage or data warehouse. Archive data older than 2-5 years for OLTP databases.
When to scale up?
Plan ahead — provision when you reach 70% capacity. Database migrations are complex; don't wait until full.